Potassium and nitrogen interactions in crop production

Milford, G. F. J. and Johnston, A. E. 2007. Potassium and nitrogen interactions in crop production. Proceedings of the International Fertiliser Society. 615.

Related outputs

Management choices in cereal production: Lessons from the Broadbalk Long-term trial

A - Papers appearing in refereed journals

Poulton, P. R., Powlson, D. S., Gregory, A. S., Glendining, M. J., Clark, S. J., Wilmer, W. S., Macdonald, A. J., Johnston, A. E. and White, R. P. 2024. Management choices in cereal production: Lessons from the Broadbalk Long-term trial. Proceedings of the International Fertiliser Society. 891, p. all. https://doi.org/10.23637/rothamstedlong-term-experiments-guide-2018

The Broadbalk Wheat Experiment, Rothamsted, UK Crop yields and soil changes during the last 50 years

A - Papers appearing in refereed journals

Poulton, P. R., Johnston, A. E., Glendining, M. J., White, R. P., Gregory, A. S., Clark, S. J., Gregory, W., Macdonald, A. J. and Powlson, D. S. 2024. The Broadbalk Wheat Experiment, Rothamsted, UK Crop yields and soil changes during the last 50 years. Advances in Agronomy. 184, pp. 173-298. https://doi.org/10.1016/bs.agron.2023.11.003

Response of three cereal crops in continuous arable or ley-arable rotations to fertiliser nitrogen and soil nitrogen at Rothamsted's Woburn Ley-arable experiment

A - Papers appearing in refereed journals

Poulton, P. R., Johnston, A. E. and White, R. P. 2023. Response of three cereal crops in continuous arable or ley-arable rotations to fertiliser nitrogen and soil nitrogen at Rothamsted's Woburn Ley-arable experiment. Soil Use and Management. 39 (2), pp. 771-784. https://doi.org/10.1111/sum.12872

The Woburn Ley-arable experiment, 1938-2020: its management, the issues and problems that arose, and their resolution to maintain the continuity and relevance of the experiment.

D1 - Technical reports: non-confidential

Johnston, A. E., Poulton, P. R., Macdonald, A. J. and Glendining, M. J. 2022. The Woburn Ley-arable experiment, 1938-2020: its management, the issues and problems that arose, and their resolution to maintain the continuity and relevance of the experiment. https://doi.org/10.23637/wrn3-manag1938-2020-01

Can Long-Term Experiments Help Us Understand, and Manage, the Wider Landscape—Examples from Rothamsted, England

B - Book chapters etc edited externally

Poulton, P. R. and Johnston, A. E. 2021. Can Long-Term Experiments Help Us Understand, and Manage, the Wider Landscape—Examples from Rothamsted, England. in: Mueller, L., Sychev, V. G., Dronin, N. M. and Eulenstein, F. (ed.) Exploring and Optimizing Agricultural Landscapes. Innovations in Landscape Research Springer. pp. 233-252

Outputs: Potassium Losses from Agricultural Systems

B - Book chapters etc edited externally

Goulding, K. W. T., Murrell, S. T., Mikkelsen, R. L., Rosolem, C., Johnston, A. E., Wang, H. and Alfaro, M. A. 2021. Outputs: Potassium Losses from Agricultural Systems. in: Murrell, S. T., Mikkelsen, R. L., Sulewski, G., Norton, R. and Thompson, M. L. (ed.) Improving Potassium Recommendations for Agricultural Crops Cham, Switzerland Springer. pp. 75-97

Phosphorus in agriculture: a review of results from 175 years research at Rothamsted, UK

A - Papers appearing in refereed journals

Poulton, P. R. and Johnston, A. E. 2019. Phosphorus in agriculture: a review of results from 175 years research at Rothamsted, UK. Journal of Environmental Quality. 48 (5), pp. 1133-1144. https://doi.org/10.2134/jeq2019.02.0078

4 Per Mille – Is It Feasible to sequester

C2 - Non-edited contributions to conferences

Powlson, D. S., Poulton, P. R., Macdonald, A. J., Johnston, A. E., White, R. P. and Goulding, K. W. T. 2018. 4 Per Mille – Is It Feasible to sequester .

The importance of long‐term experiments in agriculture: their management to ensure continued crop production and soil fertility; the Rothamsted experience

A - Papers appearing in refereed journals

Johnston, A. E. and Poulton, P. R. 2018. The importance of long‐term experiments in agriculture: their management to ensure continued crop production and soil fertility; the Rothamsted experience. European Journal of Soil Science. 69 (1), pp. 113-125. https://doi.org/10.1111/ejss.12521

4 per mille – is it feasible to sequester soil carbon at this rate annually in agricultural soils?

C2 - Non-edited contributions to conferences

Powlson, D. S., Poulton, P. R., Macdonald, A. J., Johnston, A. E., White, R. P. and Goulding, K. W. T. 2018. 4 per mille – is it feasible to sequester soil carbon at this rate annually in agricultural soils?

Major limitations to achieving 4 per 1000 increases in soil organic carbon stock in temperate regions: evidence from long-term experiments at Rothamsted Research, UK

A - Papers appearing in refereed journals

Poulton, P. R., Johnston, A. E., Macdonald, A. J., White, R. P. and Powlson, D. S. 2018. Major limitations to achieving 4 per 1000 increases in soil organic carbon stock in temperate regions: evidence from long-term experiments at Rothamsted Research, UK. Global Change Biology. 24 (6), pp. 2563-2584. https://doi.org/10.1111/gcb.14066

Field-scale evaluation of biosolids-derived organomineral fertilizers applied to winter wheat in England

A - Papers appearing in refereed journals

Antille, D. L., Godwin, R. J., Sakrabani, R., Seneweera, S., Tyrrel, S. F. and Johnston, A. E. 2017. Field-scale evaluation of biosolids-derived organomineral fertilizers applied to winter wheat in England. Agronomy Journal. 109 (2), pp. 654-674. https://doi.org/10.2134/agronj2016.09.0495

Changes in soil organic matter over 70 years in continuous arable and ley–arable rotations on a sandy loam soil in England

A - Papers appearing in refereed journals

Johnston, A. E., Poulton, P. R., Coleman, K., Macdonald, A. J. and White, R. P. 2017. Changes in soil organic matter over 70 years in continuous arable and ley–arable rotations on a sandy loam soil in England. European Journal of Soil Science. 68 (3), pp. 305-316. https://doi.org/10.1111/ejss.12415

Potassium management in soils and crops: a review

C1 - Edited contributions to conferences/learned societies

Johnston, A. E., Poulton, P. R., Goulding, K. W. T., Macdonald, A. J. and Glendining, M. J. 2016. Potassium management in soils and crops: a review. In: Proceedings of the International Fertiliser Society Vol.792. International Fertiliser Society (IFS).

Determining the longer term decline in plant-available soil phosphorus from short-term measured values

A - Papers appearing in refereed journals

Johnston, A. E., Poulton, P. R., White, Robin P. and Macdonald, A. J. 2016. Determining the longer term decline in plant-available soil phosphorus from short-term measured values. Soil Use and Management. 32 (2), pp. 151-161. https://doi.org/10.1111/sum.12253

Potassium fertilization: paradox or K management dilemma?

A - Papers appearing in refereed journals

Bar-Yosef, B., Magen, H., Johnston, A. E. and Kirkby, E. A. 2015. Potassium fertilization: paradox or K management dilemma? Renewable Agriculture And Food Systems. 30 (2), pp. 115-119. https://doi.org/10.1017/S1742170514000295

Phosphorus use efficiency and management in agriculture

A - Papers appearing in refereed journals

Roberts, T. L. and Johnston, A. E. 2015. Phosphorus use efficiency and management in agriculture. Resources, Conservation and Recycling. 105, pp. 275-281. https://doi.org/10.1016/j.resconrec.2015.09.013

Review of an ADAS Report 'The agronomic case for polyhalite', dated 8 April 2014 (Report prepared for the North York Moors National Park Authority)

D1 - Technical reports: non-confidential

Johnston, A. E. 2015. Review of an ADAS Report 'The agronomic case for polyhalite', dated 8 April 2014 (Report prepared for the North York Moors National Park Authority). North York Moors National Park Authority.

Critical soil phosphate for combinable crops in Southern Britain

C1 - Edited contributions to conferences/learned societies

Morris, N., Knight, S., Poulton, P. R., Johnston, A. E. and Goulding, K. W. T. 2014. Critical soil phosphate for combinable crops in Southern Britain. Crop production in Southern Britain: precision decisions for profitable cropping. Aspects of Applied Biology 127 . Association of Applied Biologists (AAB) Wellesbourne Warwick . pp. 181-187

Changing concepts for the efficient use of phosphorus in agriculture

C1 - Edited contributions to conferences/learned societies

Johnston, A. E. and Poulton, P. R. 2014. Changing concepts for the efficient use of phosphorus in agriculture. International Fertiliser Society Proceedings 757. International Fertiliser Society (IFS). pp. 49pp

The efficient use of phosphorus in agriculture

G - Articles in popular magazines and other technical publications

Johnston, A. E., Fixen, P. and Poulton, P. R. 2014. The efficient use of phosphorus in agriculture. Better Crops with Plant Food. 98 (4), pp. 22-24.

Identification of critical soil phosphate (P) levels for cereal and oilseed rape crops on a range of soil types (Final Project Summary)

D1 - Technical reports: non-confidential

Knight, S., Morris, N., Goulding, K. W. T., Johnston, A. E., Poulton, P. R. and Philpott, H. 2014. Identification of critical soil phosphate (P) levels for cereal and oilseed rape crops on a range of soil types (Final Project Summary). HGCA/AHDB, Stoneleigh.

Identification of critical soil phosphate (P) levels for cereal and oilseed rape crops on a range of soil types (HGCA Project Report No. 529)

D1 - Technical reports: non-confidential

Knight, S., Morris, N., Goulding, K. W. T., Johnston, A. E., Poulton, P. R. and Philpott, H. 2014. Identification of critical soil phosphate (P) levels for cereal and oilseed rape crops on a range of soil types (HGCA Project Report No. 529). HGCA/AHDB, Stoneleigh.

Phosphorus: its efficient use in agriculture

B - Book chapters etc edited externally

Johnston, A. E., Poulton, P. R., Fixen, P. E. and Curtin, D. 2014. Phosphorus: its efficient use in agriculture. in: Sparks, D. L. (ed.) Advances in Agronomy Vol.123 Elsevier.

Critical soil phosphate levels for cereal and oilseed rape crop rotations

G - Articles in popular magazines and other technical publications

Morris, N., Knight, S., Johnston, A. E., Poulton, P. R. and Goulding, K. W. T. 2013. Critical soil phosphate levels for cereal and oilseed rape crop rotations. Landmark. 16, pp. 7-9. https://doi.org/NONE

Plant-available soil phosphorus. Part I: the response of winter wheat and spring barley to Olsen P on a silty clay loam

A - Papers appearing in refereed journals

Poulton, P. R., Johnston, A. E. and White, Robin P. 2013. Plant-available soil phosphorus. Part I: the response of winter wheat and spring barley to Olsen P on a silty clay loam. Soil Use and Management. 29 (1), pp. 4-11. https://doi.org/10.1111/j.1475-2743.2012.00450.x

Plant-available soil phosphorus. Part II: the response of arable crops to Olsen P on a sandy clay loam and a silty clay loam

A - Papers appearing in refereed journals

Johnston, A. E., Poulton, P. R. and White, Robin P. 2013. Plant-available soil phosphorus. Part II: the response of arable crops to Olsen P on a sandy clay loam and a silty clay loam. Soil Use and Management. 29 (1), pp. 12-21. https://doi.org/10.1111/j.1475-2743.2012.00449.x

Letter to the editors of Nutrient Cycling in Agroecosystems

G - Articles in popular magazines and other technical publications

Johnston, A. E. and Curtin, D. 2012. Letter to the editors of Nutrient Cycling in Agroecosystems. Nutrient Cycling in Agroecosystems. 93, pp. 245-248. https://doi.org/10.1007/s10705-012-9508-y

Testing the distinctness of shoot ionomes of angiosperm families using the Rothamsted Park Grass Continuous Hay Experiment

A - Papers appearing in refereed journals

White, P. J., Broadley, M. R., Thompson, J. A., Mcnicol, J. W., Crawley, M. J., Poulton, P. R. and Johnston, A. E. 2012. Testing the distinctness of shoot ionomes of angiosperm families using the Rothamsted Park Grass Continuous Hay Experiment. New Phytologist. 196 (1), pp. 101-109. https://doi.org/10.1111/j.1469-8137.2012.04228.x

Response of cereals to soil and fertilizer phosphorus (HGCA Research Review No. 74)

D1 - Technical reports: non-confidential

Johnston, A. E. and Poulton, P. R. 2011. Response of cereals to soil and fertilizer phosphorus (HGCA Research Review No. 74). Home Grown Cereals Authority (HGCA) Stoneleigh.

Determining the optimal population density of sugarbeet crops in England

G - Articles in popular magazines and other technical publications

Jaggard, K. W., Qi, A., Milford, G. F. J., Clark, C. J. A., Ober, E. S., Walters, C. and Burks, E. 2011. Determining the optimal population density of sugarbeet crops in England. International Sugar Journal. 113, pp. 114-119.

Optimum seed rates and plant populations for English sugar beet crops

C2 - Non-edited contributions to conferences

Jaggard, K. W., Milford, G. F. J., Qi, A., Clark, C. J. A., Ober, E. S., Walters, C. and Burks, E. 2010. Optimum seed rates and plant populations for English sugar beet crops. Proceedings 72nd IIRB Congress, Copenhagen, 22-24 June 2010 . pp. 82-89

Reply to additional comments on 'Synthetic nitrogen fertilizers deplete soil nitrogen: a global dilemma for sustainable cereal production,' by R.L. Mulvaney, S.A. Khan and T.R. Ellsworth in the Journal of Environmental Quality 2009 38: 2295-2314

A - Papers appearing in refereed journals

Powlson, D. S., Jenkinson, D. S., Johnston, A. E., Poulton, P. R., Glendining, M. J. and Goulding, K. W. T. 2010. Reply to additional comments on 'Synthetic nitrogen fertilizers deplete soil nitrogen: a global dilemma for sustainable cereal production,' by R.L. Mulvaney, S.A. Khan and T.R. Ellsworth in the Journal of Environmental Quality 2009 38: 2295-2314. Journal of Environmental Quality. 39, pp. 1528-1529. https://doi.org/10.2134/jeq2010.0004le

Comments on 'Synthetic nitrogen fertilizers deplete soil nitrogen: a global dilemma for sustainable cereal production', by R.L. Mulvaney, S.A. Khan and T.R. Ellsworth in the Journal of Environmental Quality 2009 38: 2295-2314

A - Papers appearing in refereed journals

Powlson, D. S., Jenkinson, D. S., Johnston, A. E., Poulton, P. R., Glendining, M. J. and Goulding, K. W. T. 2010. Comments on 'Synthetic nitrogen fertilizers deplete soil nitrogen: a global dilemma for sustainable cereal production', by R.L. Mulvaney, S.A. Khan and T.R. Ellsworth in the Journal of Environmental Quality 2009 38: 2295-2314. Journal of Environmental Quality. 39, pp. 749-752. https://doi.org/10.2134/jeq2010.0001le

Potassium and nitrogen interactions in crop production (Translation into Polish of Proceedings of the International Fertiliser Society No. 615)

C1 - Edited contributions to conferences/learned societies

Milford, G. F. J. and Johnston, A. E. 2009. Potassium and nitrogen interactions in crop production (Translation into Polish of Proceedings of the International Fertiliser Society No. 615).

Potassium, magnesium and soil fertility: long term experimental evidence (Translation into Polish of Proceedings of the International Fertiliser Society No. 613)

C1 - Edited contributions to conferences/learned societies

Johnston, A. E. 2009. Potassium, magnesium and soil fertility: long term experimental evidence (Translation into Polish of Proceedings of the International Fertiliser Society No. 613).

Nitrogen in agriculture: an overview and definitions of nitrogen use efficiency (Proceedings of the International Fertiliser Society No 651)

C1 - Edited contributions to conferences/learned societies

Johnston, A. E. and Poulton, P. R. 2009. Nitrogen in agriculture: an overview and definitions of nitrogen use efficiency (Proceedings of the International Fertiliser Society No 651). International Fertiliser Society (IFS). pp. 48pp

A new approach to assessing phosphorus use efficiency in agriculture

G - Articles in popular magazines and other technical publications

Johnston, A. E. and Syers, J. K. 2009. A new approach to assessing phosphorus use efficiency in agriculture. Better Crops with Plant Food. 93(3), pp. 14-16.

Soil organic matter: its importance in sustainable agriculture and carbon dioxide fluxes

A - Papers appearing in refereed journals

Johnston, A. E., Poulton, P. R. and Coleman, K. 2009. Soil organic matter: its importance in sustainable agriculture and carbon dioxide fluxes. Advances in Agronomy. 101, pp. 1-57. https://doi.org/10.1016/S0065-2113(08)00801-8

Resource or waste: the reality of nutrient recycling to land

A - Papers appearing in refereed journals

Johnston, A. E. 2008. Resource or waste: the reality of nutrient recycling to land . Proceedings of the International Fertiliser Society. 630.

Soil and fertilizer phosphorus in relation to crop nutrition

B - Book chapters etc edited externally

Kirkby, E. A. and Johnston, A. E. 2008. Soil and fertilizer phosphorus in relation to crop nutrition. in: White, P. J. and Hammond, J. P. (ed.) Ecophysiology of plant-phosphorus interactions Springer, New York. pp. 177-223

Efficiency of soil and fertilizer phosphorus use: reconciling changing concepts of soil phosphorus behaviour with agronomic information (FAO Fertilizer and Plant Nutrition Bulletin 18)

E - Books edited/written by staff member, alone/with others

Syers, J. K., Johnston, A. E. and Curtin, D. 2008. Efficiency of soil and fertilizer phosphorus use: reconciling changing concepts of soil phosphorus behaviour with agronomic information (FAO Fertilizer and Plant Nutrition Bulletin 18). Food and Agriculture Organization of the United Nations (FAO), Rome, Italy.

An agronomic and physiological re-evaluation of the potassium and sodium requirements and fertilizer recommendations for sugar beet

A - Papers appearing in refereed journals

Milford, G. F. J., Jarvis, P. J., Jones, J. and Barraclough, P. B. 2008. An agronomic and physiological re-evaluation of the potassium and sodium requirements and fertilizer recommendations for sugar beet. The Journal of Agricultural Science. 146, pp. 429-443. https://doi.org/10.1017/S0021859607007630

Changes in understanding the behaviour of soil and fertiliser phosphorus: implications for their efficient use in agriculture : Paper presented to the International Fertiliser Society at a Conference in Cambridge, 14th December 2006

A - Papers appearing in refereed journals

Johnston, A. E. 2006. Changes in understanding the behaviour of soil and fertiliser phosphorus: implications for their efficient use in agriculture : Paper presented to the International Fertiliser Society at a Conference in Cambridge, 14th December 2006. Proceedings of the International Fertiliser Society. 589.

Reductions and changing patterns of ambient PCDD/Fs in the UK: evidence and implications

A - Papers appearing in refereed journals

Hassanin, A., Lee, R. G. M., Johnston, A. E. and Jones, K. C. 2006. Reductions and changing patterns of ambient PCDD/Fs in the UK: evidence and implications. Chemosphere. 65, pp. 530-539. https://doi.org/10.1016/j.chemosphere.2006.01.032

The Park Grass Experiment 1856-2006: its contribution to ecology

A - Papers appearing in refereed journals

Silvertown, J., Poulton, P. R., Johnston, A. E., Edwards, G., Heard, M. and Biss, P. M. 2006. The Park Grass Experiment 1856-2006: its contribution to ecology. Journal of Ecology. 94 (4), pp. 801-814. https://doi.org/10.1111/j.1365-2745.2006.01145.x

Phosphorus nutrition of arable crops

B - Book chapters etc edited externally

Johnston, A. E. 2005. Phosphorus nutrition of arable crops. in: Sims, J. T. and Sharpley, A. N. (ed.) Phosphorus: agriculture and the environment  ACSESS.

The potassium requirements of modern UK sugar beet crops and use of factory data to improve on the use of potassium fertilisers

C1 - Edited contributions to conferences/learned societies

Jarvis, P. J., Milford, G. F. J., Jones, J. and Barraclough, P. B. 2005. The potassium requirements of modern UK sugar beet crops and use of factory data to improve on the use of potassium fertilisers. Production and Protection of Sugar Beet and Potatoes. Aspects of Applied Biology 76 . pp. 47-54

Soil organic matter: its importance in sustainable agricultural systems (Proceedings International Fertiliser Society No 565)

A - Papers appearing in refereed journals

Johnston, A. E. and Poulton, P. R. 2005. Soil organic matter: its importance in sustainable agricultural systems (Proceedings International Fertiliser Society No 565). Proceedings of the International Fertiliser Society. 565.

Comparison of haloacetic acids in the environment of the northern and southern hemispheres

A - Papers appearing in refereed journals

Scott, B. F., Spencer, C., Matin, J. W., Barra, R., Bootsma, H. A., Jones, K. C., Johnston, A. E. and Muir, D. C. G. 2005. Comparison of haloacetic acids in the environment of the northern and southern hemispheres. Environmental Science & Technology. 39, pp. 8664-8670.

Time trends of atmospheric PBDEs inferred from archived U.K. herbage

A - Papers appearing in refereed journals

Hassanin, A., Johnston, A. E., Thomas, G. O. and Jones, K. C. 2005. Time trends of atmospheric PBDEs inferred from archived U.K. herbage. Environmental Science & Technology. 39, pp. 2436-2441.

The contribution of commercial fertilizer nutrients to food production

A - Papers appearing in refereed journals

Stewart, W. M., Dibb, D. W., Johnston, A. E. and Smyth, T. J. 2005. The contribution of commercial fertilizer nutrients to food production. Agronomy Journal. 97, pp. 1-6.

Determinants of species richness in the Park Grass Experiment

A - Papers appearing in refereed journals

Crawley, M. J., Johnston, A. E., Silvertown, J., Dodd, M., De Mazancourt, C., Heard, M. S., Henman, D. F. and Edwards, G. R. 2005. Determinants of species richness in the Park Grass Experiment. The American Naturalist. 165 (2), pp. 179-192. https://doi.org/10.1086/427270

The ability of soil to ensure adequate phosphorus nutrition of the crop; the long-term trials at Rothamsted

C2 - Non-edited contributions to conferences

Johnston, A. E. and Poulton, P. R. 2005. The ability of soil to ensure adequate phosphorus nutrition of the crop; the long-term trials at Rothamsted. Abstracts Plantekongres 2005, Herning, Denmark, 11-12 January 2005 . pp. 218-219

Lawes, John Bennet and Gilbert, Joseph Henry

G - Articles in popular magazines and other technical publications

Johnston, A. E. 2005. Lawes, John Bennet and Gilbert, Joseph Henry.

Micronutrients in soil and agrosystems: occurrence and availability.

A - Papers appearing in refereed journals

Johnston, A. E. 2004. Micronutrients in soil and agrosystems: occurrence and availability. Proceedings of the International Fertiliser Society. 544, p. 32pp.

Establishing the potassium requirements of modern, high-yielding sugar beet crops for yield and beet quality. (Final report for British Beet Research Organisation project 00/25)

D1 - Technical reports: non-confidential

Jarvis, P., Barraclough, P. B., Jones, J. and Milford, G. F. J. 2004. Establishing the potassium requirements of modern, high-yielding sugar beet crops for yield and beet quality. (Final report for British Beet Research Organisation project 00/25).

Phosphorus and crop nutrition: principles and practice

B - Book chapters etc edited externally

Evans, T. D. and Johnston, A. E. 2004. Phosphorus and crop nutrition: principles and practice. in: Valsami-Jones, E. (ed.) Phosphorus in environmental technology: principles and applications IWA Publishing, London. pp. 93-119

Observations on historical, contemporary, and natural PCDD/Fs

A - Papers appearing in refereed journals

Green, N. J. L., Hassanin, A., Johnston, A. E. and Jones, K. C. 2004. Observations on historical, contemporary, and natural PCDD/Fs. Environmental Science & Technology. 38, pp. 715-723.

Turnover of nitrogen-15-labeled fertilizer in old grassland

A - Papers appearing in refereed journals

Jenkinson, D. S., Poulton, P. R., Johnston, A. E. and Powlson, D. S. 2004. Turnover of nitrogen-15-labeled fertilizer in old grassland. Soil Science Society of America Journal. 68, pp. 865-875.

Sustainable management of potassium

B - Book chapters etc edited externally

Askegaard, M., Eriksen, J. and Johnston, A. E. 2004. Sustainable management of potassium. in: Christensen, B. T., Schjonning, P. and Elmholt, S. (ed.) Managing soil quality: challenges in modern agriculture CABI International, Wallingford, Oxon (CABI). pp. 85-102

Soil acidity - resilience and thresholds

B - Book chapters etc edited externally

Johnston, A. E. 2004. Soil acidity - resilience and thresholds. in: Christensen, B. T., Schjonning, P. and Elmholt, S. (ed.) Managing soil quality: challenges in modern agriculture CABI International, Wallingford, Oxon (CABI). pp. 35-46

Recent research on potassium and sodium recommendations for sugar beet

G - Articles in popular magazines and other technical publications

Jarvis, P., Milford, G. F. J., Armstrong, M. and Barraclough, P. B. 2003. Recent research on potassium and sodium recommendations for sugar beet. British Sugar Beet Review. 71(4), pp. 4-9.

Understanding potassium and its use in agriculture

G - Articles in popular magazines and other technical publications

Johnston, A. E. 2003. Understanding potassium and its use in agriculture.

Feed the soil to feed the people: the role of potash in sustainable agriculture. Proceedings of the IPI Golden Jubilee Congress 1952-2002, Basel, 8-10 October 2002. Volume 1. Invited papers

E - Books edited/written by staff member, alone/with others

Johnston, A. E. 2003. Feed the soil to feed the people: the role of potash in sustainable agriculture. Proceedings of the IPI Golden Jubilee Congress 1952-2002, Basel, 8-10 October 2002. Volume 1. Invited papers. Inpernational Potash Institute, Basel.

Changes in soil phosphorus fractions following positive and negative phosphorus balances for long periods

A - Papers appearing in refereed journals

Blake, L., Johnston, A. E., Poulton, P. R. and Goulding, K. W. T. 2003. Changes in soil phosphorus fractions following positive and negative phosphorus balances for long periods. Plant and Soil. 254, pp. 245-261.

Effectiveness of the water-insoluble component of triple superphosphate for yield and phosphorus uptake by plants

A - Papers appearing in refereed journals

Johnston, A. E. and Richards, I. R. 2003. Effectiveness of the water-insoluble component of triple superphosphate for yield and phosphorus uptake by plants. The Journal of Agricultural Science. 140, pp. 267-274. https://doi.org/10.1017/S0021859603002971

Effectiveness of different precipitated phosphates as phosphorus sources for plants

A - Papers appearing in refereed journals

Johnston, A. E. and Richards, I. R. 2003. Effectiveness of different precipitated phosphates as phosphorus sources for plants. Soil Use and Management. 19 (1), pp. 45-49. https://doi.org/10.1079/SUM2002162

Soil analysis: it's interpretation and nutrient management practices

G - Articles in popular magazines and other technical publications

Johnston, A. E. and Hollies, J. 2003. Soil analysis: it's interpretation and nutrient management practices. Potash News. July 2003, p. 12pp.

Possibilities for reducing nitrate leaching from agricultural land

A - Papers appearing in refereed journals

Kirchmann, H., Johnston, A. E. and Bergstrom, L. F. 2002. Possibilities for reducing nitrate leaching from agricultural land. AMBIO: A Journal of the Human Environment. 31, pp. 404-408.

The effect of soil acidity on potentially mobile phosphorus in a grassland soil

A - Papers appearing in refereed journals

Mcdowell, R. W., Brookes, P. C., Mahieu, N., Poulton, P. R., Johnston, A. E. and Sharpley, A. N. 2002. The effect of soil acidity on potentially mobile phosphorus in a grassland soil. The Journal of Agricultural Science. 139 (1), pp. 27-36. https://doi.org/10.1017/S0021859602002307

Potassium and chloride in crops and soils: the role of potassium chloride fertilizer in crop nutrition (IPI Research Topics No. 22)

E - Books edited/written by staff member, alone/with others

Kafkafi, U., Xu, G., Imas, P., Magen, H., Tarchitzky, J. and Johnston, A. E. 2002. Potassium and chloride in crops and soils: the role of potassium chloride fertilizer in crop nutrition (IPI Research Topics No. 22). International Potash Institute (IPI), Berne, Switzerland.

Understanding phosphorus and its use in agriculture

G - Articles in popular magazines and other technical publications

Johnston, A. E. and Steen, I. 2002. Understanding phosphorus and its use in agriculture.

Polychlorinated naphthalenes in UK soils: Time trends, markers of source, and equilibrium status

A - Papers appearing in refereed journals

Meijer, S. N., Harner, T., Helm, P. A., Halsall, C. J., Johnston, A. E. and Jones, K. C. 2001. Polychlorinated naphthalenes in UK soils: Time trends, markers of source, and equilibrium status. Environmental Science & Technology. 35 (21), pp. 4205-4213.

The effect of nutrients in the subsoil on crop responses to applied potassium and phosphorus

G - Articles in popular magazines and other technical publications

Johnston, A. E. and Milford, G. F. J. 2001. The effect of nutrients in the subsoil on crop responses to applied potassium and phosphorus. British Sugar Beet Review. 69(2), pp. 24-29.

Inputs of nutrients and lime for the maintenance of fertility of grassland soils

C1 - Edited contributions to conferences/learned societies

Johnston, A. E., Poulton, P. R., Dawson, C. J. and Crawley, M. J. 2001. Inputs of nutrients and lime for the maintenance of fertility of grassland soils. International Fertiliser Society (IFS).

Reducing fertiliser inputs: endangering arable soil fertility?

C1 - Edited contributions to conferences/learned societies

Johnston, A. E., Goulding, K. W. T., Poulton, P. R. and Chalmers, A. G. 2001. Reducing fertiliser inputs: endangering arable soil fertility?

Soil management for sustainable farming

A - Papers appearing in refereed journals

Johnston, A. E. and Salter, J. L. 2001. Soil management for sustainable farming. Journal of the Royal Agricultural Society of England. 162, pp. 122-132.

Longterm trends in metals in agroecosystems

C2 - Non-edited contributions to conferences

McGrath, S. P. and Johnston, A. E. 2001. Longterm trends in metals in agroecosystems. Proceedings 6th International Conference on the Biogeochemistry of Trace Elements, Guelph, 29 July-2 August 2001 . pp. 303

Temporal trends in cadmium in crops and soils

C2 - Non-edited contributions to conferences

Johnston, A. E., McGrath, S. P., Chaudri, A. M., Adams, M. L. and Jones, K. C. 2001. Temporal trends in cadmium in crops and soils. Proceedings 6th International Conference on the Biogeochemistry of Trace Elements, Guelph, 29 July-2 August 2001 . pp. 308

Organochlorine pesticide residues in archived UK soil

A - Papers appearing in refereed journals

Meijer, S. N., Halsall, C. J., Harner, T., Peters, A. J., Ockenden, W. A., Johnston, A. E. and Jones, K. C. 2001. Organochlorine pesticide residues in archived UK soil. Environmental Science & Technology. 35 (10), pp. 1989-1995. https://doi.org/10.1021/es0000955

Phosphorus, potassium and sulphur cycles in agricultural soils

C1 - Edited contributions to conferences/learned societies

Johnston, A. E., Poulton, P. R. and Syers, J. K. 2001. Phosphorus, potassium and sulphur cycles in agricultural soils.

Further evidence for the existence of PCDD/Fs in the environment prior to 1900

A - Papers appearing in refereed journals

Green, N. J. L., Jones, J. L., Johnston, A. E. and Jones, K. C. 2001. Further evidence for the existence of PCDD/Fs in the environment prior to 1900. Environmental Science & Technology. 35 (10), pp. 1974-1981. https://doi.org/10.1021/es0002161

Principles of crop nutrition for sustainable food production

A - Papers appearing in refereed journals

Johnston, A. E. 2001. Principles of crop nutrition for sustainable food production. Proceedings of the International Fertiliser Society. 459, p. 39pp.

Soil and plant phosphate

G - Articles in popular magazines and other technical publications

Johnston, A. E. 2000. Soil and plant phosphate.

Some aspects of nitrogen use efficiency in arable agriculture

C1 - Edited contributions to conferences/learned societies

Johnston, A. E. 2000. Some aspects of nitrogen use efficiency in arable agriculture.

Bryophyte biomass and species richness on the Park Grass Experiment, Rothamsted, UK

A - Papers appearing in refereed journals

Virtanen, R., Johnston, A. E., Crawley, M. J. and Edwards, G. R. 2000. Bryophyte biomass and species richness on the Park Grass Experiment, Rothamsted, UK. Plant Ecology. 151, pp. 129-141. https://doi.org/10.1023/A:1026533418357

Nitrogen mobility - a review

C1 - Edited contributions to conferences/learned societies

Johnston, A. E. 2000. Nitrogen mobility - a review.

Efficient use of nutrients in agricultural production systems

A - Papers appearing in refereed journals

Johnston, A. E. 2000. Efficient use of nutrients in agricultural production systems. Communications in Soil Science and Plant Analysis. 31 (11-14), pp. 1599-1620. https://doi.org/10.1080/00103620009370527

Effect of potassium fertilizer on the yield, quality and potassium offtake of sugar beet crops grown on soils of different potassium status

A - Papers appearing in refereed journals

Milford, G. F. J., Armstrong, M. J., Jarvis, P. J., Houghton, B. J., Bellett-Travers, D. M., Jones, J. and Leigh, R. A. 2000. Effect of potassium fertilizer on the yield, quality and potassium offtake of sugar beet crops grown on soils of different potassium status. The Journal of Agricultural Science. 135, pp. 1-10.

Some aspects of achieving sustainable phosphorus use in agriculture

A - Papers appearing in refereed journals

Higgs, B., Johnston, A. E., Salter, J. L. and Dawson, C. J. 2000. Some aspects of achieving sustainable phosphorus use in agriculture. Journal of Environmental Quality. 29 (1), pp. 80-87. https://doi.org/10.2134/jeq2000.00472425002900010010x

Response to comment on "Evidence for the presence of PCDD/Fs in the environment prior to 1900 and further studies on their temporal trends"

G - Articles in popular magazines and other technical publications

Alcock, R. E., Jones, K. C., Mclachlan, M. S. and Johnston, A. E. 1999. Response to comment on "Evidence for the presence of PCDD/Fs in the environment prior to 1900 and further studies on their temporal trends". Environmental Science & Technology. 33 (1), pp. 206-207. https://doi.org/10.1021/es9820137

The causes of, and potential solutions to, yield instability in autumn-sown, determinate (restricted branching) white lupins (Lupinus albus L.)

C2 - Non-edited contributions to conferences

Shield, I. F., Stevenson, H. J., Scott, T., Leach, J. E. and Milford, G. F. J. 1999. The causes of, and potential solutions to, yield instability in autumn-sown, determinate (restricted branching) white lupins (Lupinus albus L.). Abstracts 9th International Lupin Conference: Lupin - an Ancient Crop for the New Millennium, Klink, 20-24 June 1999 . pp. 297

Organisation and objectives of the European LUPIN Programme

C2 - Non-edited contributions to conferences

Huyghe, C., Harzic, N., Milford, G. F. J., Shield, I. F., Gamerre, V., Christiansen, J., Jornsgard, B., Romer, P., De Rocha, J. and Knudsen, K. E. B. 1999. Organisation and objectives of the European LUPIN Programme. Abstracts 9th International Lupin Conference: Lupin - an Ancient Crop for the New Millennium, Klink, 20-24 June 1999 . pp. 123

Using long-term experiments to address current agricultural and environmental issues

C1 - Edited contributions to conferences/learned societies

Poulton, P. R., Powlson, D. S. and Johnston, A. E. 1999. Using long-term experiments to address current agricultural and environmental issues. Proceedings BRRI-IRRI Joint Workshop on Long-Term Experiments on Soil Fertility in Rice-based Cropping Systems, Bangladesh Rice Research Institute, 8-11 March 1999 . pp. 1-39

Design, development and use of a national survey of fertiliser applications

C1 - Edited contributions to conferences/learned societies

Chalmers, A. G., Renwick, A., Johnston, A. E. and Dawson, C. J. 1999. Design, development and use of a national survey of fertiliser applications.

The use of physiological criteria to optimise production in white lupins

C1 - Edited contributions to conferences/learned societies

Milford, G. F. J., Shield, I. F. and Huyghe, C. 1999. The use of physiological criteria to optimise production in white lupins. Proceedings 8th International Lupin Conference, Monterey, 1996 . pp. 2-10

Comparison of autumn-sown white lupin cultivars (Lupinus albus) for the UK

G - Articles in popular magazines and other technical publications

Leach, J. E., Stevenson, H. J., Shield, I. F., Scott, T. and Milford, G. F. J. 1999. Comparison of autumn-sown white lupin cultivars (Lupinus albus) for the UK. Annals of Applied Biology (Tests of Agrochemicals and Cultivars). 20, pp. 50-51.

Development of mapping techniques in Lupinus albus

C2 - Non-edited contributions to conferences

Gilbert, J., Green, R., Wetten, A., Lewis, R., Milford, G. F. J. and Caligari, P. D. S. 1999. Development of mapping techniques in Lupinus albus. Proceedings 8th International Lupin Conference, Monterey, 1996 . pp. 245-247

Essential Role of Potassium in Diverse Cropping Systems: Proceedings of Workshop C, 16th World Congress of Soil Science, Montpellier, 20-26 August 1998

E - Books edited/written by staff member, alone/with others

Johnston, A. E. 1999. Essential Role of Potassium in Diverse Cropping Systems: Proceedings of Workshop C, 16th World Congress of Soil Science, Montpellier, 20-26 August 1998. International Potash Institute (IPI), Berne, Switzerland.

An analysis of the variation in crown size in sugar-beet (Beta vulgaris ) grown in England

A - Papers appearing in refereed journals

Milford, G. F. J. and Houghton, B. J. 1999. An analysis of the variation in crown size in sugar-beet (Beta vulgaris ) grown in England. Annals of Applied Biology - AAB. 134 (2), pp. 225-232. https://doi.org/10.1111/j.1744-7348.1999.tb05258.x

Seed and pod development of autumn-sown, determinate white lupins (Lupinus albus ) in relation to the assimilation and distribution of dry matter and nitrogen in crops grown at different densities

A - Papers appearing in refereed journals

Milford, G. F. J., Shield, I. F., Stevenson, J. H., Scott, T. and Leach, J. E. 1999. Seed and pod development of autumn-sown, determinate white lupins (Lupinus albus ) in relation to the assimilation and distribution of dry matter and nitrogen in crops grown at different densities. The Journal of Agricultural Science. 133, pp. 141-150. https://doi.org/10.1017/S0021859699006826

Factors affecting the accumulation of potassium in sugar beet storage roots. (Confidential Report to British Sugar PLC)

D1 - Technical reports: non-confidential

Leigh, R. A., Milford, G. F. J., Bellet-Travers, D. M., Poynter, A., Jones, J., Caiger, R. and Gibbard, C. 1999. Factors affecting the accumulation of potassium in sugar beet storage roots. (Confidential Report to British Sugar PLC).

Organic manures and mineral fertilizers

B - Book chapters etc edited externally

Johnston, A. E. 1999. Organic manures and mineral fertilizers. in: Anac, D. and Martin-Prevel, P. (ed.) Improved crop quality by nutrient management Kluwer Academic Publishers, Dordrecht, Netherlands. pp. 7-11

The retention and release of phosphorus from soil

G - Articles in popular magazines and other technical publications

Blake, L. and Johnston, A. E. 1999. The retention and release of phosphorus from soil. IMPHOS Phosphate Newsletter. 8-9, p. 6.

Changes in soil chemistry accompanying acidification over more than 100 years under woodland and grass at Rothamsted Experimental Station, UK

A - Papers appearing in refereed journals

Blake, L., Goulding, K. W. T., Mott, C. J. B. and Johnston, A. E. 1999. Changes in soil chemistry accompanying acidification over more than 100 years under woodland and grass at Rothamsted Experimental Station, UK. European Journal of Soil Science. 50 (3), pp. 401-412. https://doi.org/10.1046/j.1365-2389.1999.00253.x

Biological weed control via nutrient competition: potassium limitation of dandelions

A - Papers appearing in refereed journals

Tilman, E. A., Tilman, D., Crawley, M. J. and Johnston, A. E. 1999. Biological weed control via nutrient competition: potassium limitation of dandelions. Ecological Applications. 9 (1), pp. 103-111. https://doi.org/10.2307/2641171

Food security in the WANA region: the essential need for fertilizers

B - Book chapters etc edited externally

Johnston, A. E. 1998. Food security in the WANA region: the essential need for fertilizers. in: Johnston, A. E. (ed.) Food security in the WANA region, the essential need for balanced fertilization. Proceedings of a Regional Workshop of the International Potash Institute, Bornova, Izmir, Turkey, 25-30 May 1997 International Potash Institute (IPI), Berne, Switzerland. pp. 11-29

Food security in the WANA region, the essential need for balanced fertilization. Proceedings of a Regional Workshop of the International Potash Institute, Bornova, Izmir, Turkey, 26-30 May 1997

E - Books edited/written by staff member, alone/with others

Johnston, A. E. 1998. Food security in the WANA region, the essential need for balanced fertilization. Proceedings of a Regional Workshop of the International Potash Institute, Bornova, Izmir, Turkey, 26-30 May 1997. International Potash Institute (IPI), Berne, Switzerland.

Assessment of some spatially variable soil factors limiting crop yields (Proceedings International Fertiliser Society No. 419)

C1 - Edited contributions to conferences/learned societies

Johnston, A. E., Barraclough, P. B., Poulton, P. R. and Dawson, C. J. 1998. Assessment of some spatially variable soil factors limiting crop yields (Proceedings International Fertiliser Society No. 419). International Fertiliser Society, York. pp. 46pp

Potassium off-takes in sugar beet: their relation to yield and beet quality

C1 - Edited contributions to conferences/learned societies

Armstrong, M. J., Jarvis, P. J., Milford, G. F. J., Bellett-Travers, D. M. and Leigh, R. A. 1998. Potassium off-takes in sugar beet: their relation to yield and beet quality. Protection and Production of Sugar Beet and Potatoes. Aspects of Applied Biology 52 . pp. 53-56

Nutrient management for sustainable crop production in Asia

E - Books edited/written by staff member, alone/with others

Johnston, A. E. Syers, J. K. (ed.) 1998. Nutrient management for sustainable crop production in Asia. CABI International, Wallingford, Oxon (CABI).

Is exchangeable K a sufficient guide for K recommendations?

C2 - Non-edited contributions to conferences

Johnston, A. E. and Krauss, A. 1998. Is exchangeable K a sufficient guide for K recommendations? Proceedings 16th World Congress of Soil Science, Montpellier, 20-26 August 1998 .

Working Group Reports and Conference Summary

B - Book chapters etc edited externally

Johnston, A. E. and Syers, J. K. 1998. Working Group Reports and Conference Summary. in: Johnston, A. E. and Syers, J. K. (ed.) Nutrient management for sustainable crop production in Asia CABI International, Wallingford, Oxon (CABI). pp. 375-383

The importance of fertilizers in plant nutrient management

B - Book chapters etc edited externally

Johnston, A. E. 1998. The importance of fertilizers in plant nutrient management. in: Johnston, A. E. and Syers, J. K. (ed.) Nutrient management for sustainable crop production in Asia CABI International, Wallingford, Oxon (CABI). pp. 35-50

Evidence for the presence of PCDD/Fs in the environment prior to 1900 and further studies on their temporal trends

A - Papers appearing in refereed journals

Alcock, R. E., Mclachlan, M. S., Johnston, A. E. and Jones, K. C. 1998. Evidence for the presence of PCDD/Fs in the environment prior to 1900 and further studies on their temporal trends. Environmental Science & Technology. 32 (11), pp. 1580-1587. https://doi.org/10.1021/es9705046

Integrated plant nutrient management for efficient crop production

C1 - Edited contributions to conferences/learned societies

Johnston, A. E. 1997. Integrated plant nutrient management for efficient crop production. Proceedings Dahlia Greidinger International Symposium on Fertilization and the Environment, Haifa, 24-27 March 1997 . pp. 37-48

Fertilisers and agriculture: fifty years of developments and challenges

C1 - Edited contributions to conferences/learned societies

Johnston, A. E. 1997. Fertilisers and agriculture: fifty years of developments and challenges.

Peat - a valuable resource

C1 - Edited contributions to conferences/learned societies

Johnston, A. E., Hewitt, M. V., Poulton, P. R. and Lane, P. W. 1997. Peat - a valuable resource. Wilson, W. S. and Hayes, M. H. B. (ed.) Humic substances in soils, peats and waters: health and environmental aspects . Royal Society of Chemistry (RSC), Cambridge. pp. 368-383

Soil organic matter and soil quality: lessons learned from long term field experiments at Askov and Rothamsted

B - Book chapters etc edited externally

Christensen, B. T. and Johnston, A. E. 1997. Soil organic matter and soil quality: lessons learned from long term field experiments at Askov and Rothamsted. in: Carter, M. R. and Gregorich, E. G. (ed.) Soil quality for crop production and ecosystem health Elsevier, Amsterdam. pp. 399-430

The effect of soil freezing on the survival of winter-sown white lupins (Lupinus albus L.)

A - Papers appearing in refereed journals

Leach, J. E., Stevenson, H. J., Scott, T. and Milford, G. F. J. 1997. The effect of soil freezing on the survival of winter-sown white lupins (Lupinus albus L.). Annals of Applied Biology - AAB. 130 (3), pp. 561-567. https://doi.org/10.1111/j.1744-7348.1997.tb07682.x

Aspects of soil fertility in the interpretation of yield maps as an aid to precision farming

C1 - Edited contributions to conferences/learned societies

Dawson, C. J. and Johnston, A. E. 1997. Aspects of soil fertility in the interpretation of yield maps as an aid to precision farming. Stafford, J. V. (ed.) Precision Agriculture 1997: Proceedings 1st European Conference on Precision Agriculture, Warwick, September 1997 . BIOS Scientific Publishers Limited. pp. 87-94

Why and how have the winter type white lupins been developed?

G - Articles in popular magazines and other technical publications

Huyghe, C. and Milford, G. F. J. 1997. Why and how have the winter type white lupins been developed? Grain Legumes. 16, p. 13.

Phosphorus loss from soil to water

E - Books edited/written by staff member, alone/with others

Tunney, H., Carton, O. T., Brookes, P. C. and Johnston, A. E. 1997. Phosphorus loss from soil to water. CABI International, Wallingford, Oxon (CABI).

The value of long-term field experiments in agricultural, ecological and environmental research

B - Book chapters etc edited externally

Johnston, A. E. 1997. The value of long-term field experiments in agricultural, ecological and environmental research. in: Sparks, D. L. (ed.) Advances in Agronomy (Vol. 59) Elsevier.

Phosphorus: essential plant nutrient, possible pollutant

G - Articles in popular magazines and other technical publications

Johnston, A. E. 1996. Phosphorus: essential plant nutrient, possible pollutant. Meststoffen.

Winter sowing of lupins: progress and prospects

C1 - Edited contributions to conferences/learned societies

Milford, G. F. J. and Huyghe, C. 1996. Winter sowing of lupins: progress and prospects. Problems and Prospects for Winter Sowing of Grain Legumes in Europe. Proceedings of AEP Workshop, Dijon, December 1996 . pp. 59-64

The long-term effect of ley-arable cropping on soil organic matter and crop yield

C1 - Edited contributions to conferences/learned societies

Poulton, P. R. and Johnston, A. E. 1996. The long-term effect of ley-arable cropping on soil organic matter and crop yield. Transactions 9th Nitrogen Workshop, Braunschweig, 9-12 September 1996 . pp. 437-440

The potential of lupins for UK agriculture

A - Papers appearing in refereed journals

Milford, G. F. J. and Shield, I. F. 1996. The potential of lupins for UK agriculture. Journal of the Royal Agricultural Society of England. 157, pp. 84-91.

An analysis of the agronomic, economic and environmental effects of applying N fertilizer to sugarbeet (Beta vulgaris )

A - Papers appearing in refereed journals

Allison, M. F., Armstrong, M. J., Jaggard, K. W., Todd, A. D. and Milford, G. F. J. 1996. An analysis of the agronomic, economic and environmental effects of applying N fertilizer to sugarbeet (Beta vulgaris ). The Journal of Agricultural Science. 127 (4), pp. 475-486. https://doi.org/10.1017/S0021859600078709

Effect of sowing date and planting density on the structure and yield of autumn-sown, florally-determinate white lupins (Lupinus albus) in the United Kingdom

A - Papers appearing in refereed journals

Shield, I. F., Stevenson, J. H., Leach, J. E., Scott, T., Day, J. M. and Milford, G. F. J. 1996. Effect of sowing date and planting density on the structure and yield of autumn-sown, florally-determinate white lupins (Lupinus albus) in the United Kingdom. The Journal of Agricultural Science. 127 (2), pp. 183-191. https://doi.org/10.1017/S0021859600077960

Seed glucosinolate, oil and protein contents of field-grown rape (Brassica napus L.) affected by soil drying and evaporative demand

A - Papers appearing in refereed journals

Jensen, C. R., Mogensen, V. O., Mortensen, G., Fieldsend, J. K., Milford, G. F. J., Andersen, M. N. and Thage, J. H. 1996. Seed glucosinolate, oil and protein contents of field-grown rape (Brassica napus L.) affected by soil drying and evaporative demand. Field Crops Research. 47, pp. 93-105. https://doi.org/10.1016/0378-4290(96)00026-3

Improvements in the performance of peas, beans and lupins as grain legumes for British and European agriculture

C1 - Edited contributions to conferences/learned societies

Fox, K. and Milford, G. F. J. 1996. Improvements in the performance of peas, beans and lupins as grain legumes for British and European agriculture. Legumes in Sustainable Farming Systems. Proceedings of the 30th Occasional Symposium of the British Grassland Society, Aberdeen, September 1996 . pp. 52-61

Isotopic character of lead deposited from the atmosphere at a grassland site in the UK since 1860

A - Papers appearing in refereed journals

Bacon, J. R., Jones, K. C., McGrath, S. P. and Johnston, A. E. 1996. Isotopic character of lead deposited from the atmosphere at a grassland site in the UK since 1860. Environmental Science & Technology. 30 (8), pp. 2511-2518. https://doi.org/10.1021/es950839s

Assimilate partitioning in sugar beet

B - Book chapters etc edited externally

Bell, C. I., Milford, G. F. J. and Leigh, R. A. 1996. Assimilate partitioning in sugar beet. in: Zamski, E. and Shaffer, A. A. (ed.) Distribution of photoassimilates in plants and crops: source-sink relationships Dekker, New York. pp. 691-707

Simple physiological models of plant development for the white lupin (Lupinus albus ) and their use in agricultural practice

C1 - Edited contributions to conferences/learned societies

Milford, G. F. J., Shield, I. F., Siddons, P. A., Jones, R. J. A. and Huyghe, C. 1996. Simple physiological models of plant development for the white lupin (Lupinus albus ) and their use in agricultural practice. Modelling in Applied Biology. Aspects of Applied Biology 46 . pp. 1-6

Evidence for a decline in atmospheric emissions of PCDD/Fs in the UK

A - Papers appearing in refereed journals

Kjeller, L. O., Jones, K. C., Johnston, A. E. and Rappe, C. 1996. Evidence for a decline in atmospheric emissions of PCDD/Fs in the UK. Environmental Science & Technology. 30 (4), pp. 1398-1403. https://doi.org/10.1021/es950708r

Are polychlorinated biphenyls produced naturally? Results from recent UK investigations

B - Book chapters etc edited externally

Alcock, R. E., Lead, W. A., Johnston, A. E. and Jones, K. C. 1995. Are polychlorinated biphenyls produced naturally? Results from recent UK investigations. in: Grimvall, A. and de Leer, E. W. B. (ed.) Naturally-produced organo-halogens: Selected and edited proceedings of the First Conference on Naturally-Produced Organohalogens  Dordrecht, Netherlands, Springer Science.

Movement of water and the herbicides atrazine and isoproturon through a large structured clay soil core

A - Papers appearing in refereed journals

Beck, A. J., Lam, V., Henderson, D. E., Beven, K. J., Harris, G. L., Howse, K. R., Johnston, A. E. and Jones, K. C. 1995. Movement of water and the herbicides atrazine and isoproturon through a large structured clay soil core. Journal of Contaminant Hydrology. 19, pp. 237-260.

The Significance of the Retention of Atmospherically Deposited Cadmium on Plant-Surfaces to the Cadmium Content of Herbage

A - Papers appearing in refereed journals

Nicholson, F. A., Jones, K. C. and Johnston, A. E. 1995. The Significance of the Retention of Atmospherically Deposited Cadmium on Plant-Surfaces to the Cadmium Content of Herbage. Chemosphere. 31 (4), pp. 3043-3049.

The significance of long-term experiments to agricultural research

C1 - Edited contributions to conferences/learned societies

Johnston, A. E. 1995. The significance of long-term experiments to agricultural research. Christensen, B. T. and Trentemoller, U. (ed.) The Askov Long-Term Experiments on Animal Manure and Mineral Fertilizers, 100th Anniversary Workshop, Askov Experimental Station, 8-10 September 1994 . Danish Institute of Plant and Soil Science (DIPSS). pp. 19-23

The value of long-term field experiments in agricultural and environmental research

C1 - Edited contributions to conferences/learned societies

Johnston, A. E. 1995. The value of long-term field experiments in agricultural and environmental research. Christensen, B. T. and Trentemoller, U. (ed.) The Askov Long-Term Experiments on Animal Manure and Mineral Fertilizers, 100th Anniverary Workshop, Askov Experimental Station, 8-10 September 1994 . Danish Institute of Plant and Soil Science (DIPSS). pp. 31-64

Effects of site and nitrogen management on growth and grain quality for malting of winter barley. Home-Grown Cereals Authority Project Report 119

D1 - Technical reports: non-confidential

White, E. M., Mcmichael, A. C. and Milford, G. F. J. 1995. Effects of site and nitrogen management on growth and grain quality for malting of winter barley. Home-Grown Cereals Authority Project Report 119. H-GCA, London.

Proceedings International Workshop on Phosphorus Loss to Water from Agriculture

E - Books edited/written by staff member, alone/with others

Tunney, H., Carton, O. T., Brookes, P. C., Johnston, A. E., Foy, R. H., Morgan, A. and Sharpley, A. N. Pionke, H. B. (ed.) 1995. Proceedings International Workshop on Phosphorus Loss to Water from Agriculture.

Comparison of TEAGASC (Ireland) and MAFF (England and Wales) fertilizer P recommendations

C1 - Edited contributions to conferences/learned societies

Poulton, P. R., Tunney, H. and Johnston, A. E. 1995. Comparison of TEAGASC (Ireland) and MAFF (England and Wales) fertilizer P recommendations. Proceedings International Workshop on Phosphorus Loss to Water from Agriculture, Wexford, 22-29 September 1995 . pp. 121-122

Factors affecting critical soil P values

C1 - Edited contributions to conferences/learned societies

Johnston, A. E. and Poulton, P. R. 1995. Factors affecting critical soil P values. Proceedings International Workshop on Phosphorus Loss to Water from Agriculture, Wexford, 22-29 September 1995 . pp. 117-118

Defining critical levels of available soil P for agricultural soils

C1 - Edited contributions to conferences/learned societies

Johnston, A. E. and Poulton, P. R. 1995. Defining critical levels of available soil P for agricultural soils. Proceedingss International Workshop on Phosphorus Loss to Water from Agriculture, Wexford, 22-29 September 1995 . pp. 115-116

The downward movement and retention of P in agricultural soils

C1 - Edited contributions to conferences/learned societies

Johnston, A. E. and Poulton, P. R. 1995. The downward movement and retention of P in agricultural soils. Proceedingss International Workshop on Phosphorus Loss to Water from Agriculture, Wexford, 22-29 September 1995 . pp. 97-98

Development and prediction of sulphur deficiency in winter oilseed rape. (Home-Grown Cereals Authority Project Report No. OS11)

D1 - Technical reports: non-confidential

Withers, P. J. A., Evans, E. J., Bilsborrow, P. E., Milford, G. F. J., McGrath, S. P., Zhao, F-J. and Walker, K. C. 1995. Development and prediction of sulphur deficiency in winter oilseed rape. (Home-Grown Cereals Authority Project Report No. OS11). Home Grown Cereals Authority (HGCA) London.

Interrelations between the concentrations of solutes during the growth of sugar beet storage roots

C2 - Non-edited contributions to conferences

Leigh, R. A., Bambridge, L. W., Bell, C. I., Jones, J. and Milford, G. F. J. 1995. Interrelations between the concentrations of solutes during the growth of sugar beet storage roots. Abstracts International Conference on the Transport of Photoassimilates, Canterbury, 13-17 August 1995 . pp. 20

Phosphate losses in the Woburn Erosion Reference Experiment

C1 - Edited contributions to conferences/learned societies

Catt, J. A., Johnston, A. E. and Quinton, J. N. 1995. Phosphate losses in the Woburn Erosion Reference Experiment. Proceedings International Workshop on Phosphorus Loss to Water from Agriculture, Wexford, 27-29 September 1995 . pp. 51-52

Improving the prediction of sulphur deficiency in winter oilseed rape in the UK

C2 - Non-edited contributions to conferences

Withers, P. J. A., Evans, E. J., Bilsborrow, P. E., Milford, G. F. J., McGrath, S. P., Zhao, F-J. and Walker, K. C. 1995. Improving the prediction of sulphur deficiency in winter oilseed rape in the UK. Rapeseed Today and Tomorrow: Proceedings of 9th International Rapeseed Congress, Cambridge, 4-7 July 1995 .

The performance of autumn-sown determinate genotypes of the white lupin (Lupinus albus ) in different regions of the United Kingdom

C2 - Non-edited contributions to conferences

Shield, I. F. and Milford, G. F. J. 1995. The performance of autumn-sown determinate genotypes of the white lupin (Lupinus albus ) in different regions of the United Kingdom. Proceedings 2nd European Grain Legume Conference, Copenhagen, 1995 . pp. 144

The use of simple physiological models of plant development to predict where autumn-sown, determinate white lupins (Lupinus albus L.) might be grown

C1 - Edited contributions to conferences/learned societies

Milford, G. F. J., Scott, T., Jones, R., Siddons, P. and Huyghe, C. 1995. The use of simple physiological models of plant development to predict where autumn-sown, determinate white lupins (Lupinus albus L.) might be grown. Proceedings 2nd European Grain Legume Conference, Copenhagen, 1995 . pp. 136-137

The importance of long- and short-term air-soil exchanges of organic contaminants

A - Papers appearing in refereed journals

Jones, K. C., Johnston, A. E. and McGrath, S. P. 1995. The importance of long- and short-term air-soil exchanges of organic contaminants. International Journal Of Environmental Analytical Chemistry. 59 (2-4), pp. 167-178. https://doi.org/10.1080/03067319508041325

The origin and fate of cadmium in soil

C1 - Edited contributions to conferences/learned societies

Johnston, A. E. and Jones, K. C. 1995. The origin and fate of cadmium in soil. International Fertiliser Society (IFS).

Long-term experiments and productivity indexes to evaluate the sustainability of cropping systems

B - Book chapters etc edited externally

Cassman, K. G. and Johnston, A. E. 1995. Long-term experiments and productivity indexes to evaluate the sustainability of cropping systems. in: Barnett, V., Steiner, R. and Payne, R. W. (ed.) Agricultural sustainability: economic, environmental and statistical considerations John Wiley & Sons Chichester, West Sussex. pp. 231-244

The effects of S and N on the yield and quality of oilseed rape in the UK

C1 - Edited contributions to conferences/learned societies

Bilsborrow, P. E., Evans, E. J., Milford, G. F. J. and Fieldsend, J. K. 1995. The effects of S and N on the yield and quality of oilseed rape in the UK. Rapeseed Today and Tomorrow: Proceedings 9th International Rapeseed Congress, Cambridge, 4-7 July 1995 .

Effect of crop residue management and drainage on the persistence and movement of Isoproturon in a structured clay soil over the growing season of a winter barley crop

A - Papers appearing in refereed journals

Beck, A. J., Harris, G. L., Howse, K. R., Johnston, A. E. and Jones, K. C. 1995. Effect of crop residue management and drainage on the persistence and movement of Isoproturon in a structured clay soil over the growing season of a winter barley crop. Journal of Agricultural and Food Chemistry - JAFC. 43 (5), pp. 1368-1376. https://doi.org/10.1021/jf00053a045

Sustainability - the Rothamsted experience

B - Book chapters etc edited externally

Johnston, A. E., Landau, S., Payne, R. W., Welham, S. J. and Rayner, A. I. 1995. Sustainability - the Rothamsted experience. in: Barnett, V., Steiner, R. and Payne, R. W. (ed.) Agricultural sustainability: economic, environmental and statistical considerations John Wiley & Sons Chichester, West Sussex. pp. 171-206

Effects of site, season and sulphur and nitrogen fertiliser on yield and seed glucosinolates of winter oilseed rape. Home-Grown Cereals Authority Project Report OS8

D1 - Technical reports: non-confidential

Milford, G. F. J., Fieldsend, J. K., Evans, E. J. and Bilsborrow, P. E. 1995. Effects of site, season and sulphur and nitrogen fertiliser on yield and seed glucosinolates of winter oilseed rape. Home-Grown Cereals Authority Project Report OS8. H-GCA, London.

Sulphate supply and its effects on sap quality during growth in sugar beet storage roots

A - Papers appearing in refereed journals

Bell, C. I., Jones, J., Franklin, J., Milford, G. F. J. and Leigh, R. A. 1995. Sulphate supply and its effects on sap quality during growth in sugar beet storage roots. Zeitschrift fur Pflanzenernahrung und Bodenkunde. 158 (1), pp. 93-95. https://doi.org/10.1002/jpln.19951580120

Defining aspects of soil fertility to insure continued productivity

B - Book chapters etc edited externally

Johnston, A. E. 1994. Defining aspects of soil fertility to insure continued productivity. in: Nutrient management on highly productive soils Potash and Phosphate Institute, Manhattan. pp. 5-17

The Rothamsted Classical Experiments

A - Papers appearing in refereed journals

Poulton, P. R. and Johnston, A. E. 1994. The Rothamsted Classical Experiments. Agrokemia es talajtan. 43, pp. 249-263.

The role of nitrogen in crop production and losses of nitrate by leaching from agricultural soil

A - Papers appearing in refereed journals

Johnston, A. E. 1994. The role of nitrogen in crop production and losses of nitrate by leaching from agricultural soil. Marine Pollution Bulletin. 29 (6-12), pp. 414-419. https://doi.org/10.1016/0025-326X(94)90664-5

Nitrophosphates and their use in agriculture - a historical review

C1 - Edited contributions to conferences/learned societies

Johnston, A. E. 1994. Nitrophosphates and their use in agriculture - a historical review. Lee, R. G. (ed.) Nitric acid-based fertilizers and the environment . International Fertilizer Development Centre, Muscle Shoals. pp. 37-48

Nitrogen: a changing perspective of its role in food production and environmental concerns

C1 - Edited contributions to conferences/learned societies

Johnston, A. E. 1994. Nitrogen: a changing perspective of its role in food production and environmental concerns. Lee, R. G. (ed.) Nitric acid-based fertilizers and the environment . International Fertilizer Development Centre, Muscle Shoals. pp. 67-76

Contamination of environmental samples prepared for PCB analysis

A - Papers appearing in refereed journals

Alcock, R. E., Halsall, C. J., Harris, C. A., Johnston, A. E., Lead, W. A., Sanders, G. and Jones, K. C. 1994. Contamination of environmental samples prepared for PCB analysis. Environmental Science & Technology. 28 (11), pp. 1838-1842. https://doi.org/10.1021/es00060a013

Effect of phosphate fertilisers and atmospheric deposition on long-term changes in the cadmium content of soils and crops

A - Papers appearing in refereed journals

Nicholson, F. A., Jones, K. C. and Johnston, A. E. 1994. Effect of phosphate fertilisers and atmospheric deposition on long-term changes in the cadmium content of soils and crops. Environmental Science & Technology. 28 (12), pp. 2170-2175. https://doi.org/10.1021/es00061a027

Long-term experiments in agricultural and ecological sciences

E - Books edited/written by staff member, alone/with others

Leigh, R. A. and Johnston, A. E. 1994. Long-term experiments in agricultural and ecological sciences. CABI International, Wallingford, Oxon (CABI).

The Park Grass Experiment: insights from the most long-term ecological study

B - Book chapters etc edited externally

Tilman, D., Dodd, M. E., Silvertown, J., Poulton, P. R., Crawley, M. J. and Johnston, A. E. 1994. The Park Grass Experiment: insights from the most long-term ecological study. in: Johnston, A. E. and Leigh, R. A. (ed.) Long-term experiments in agricultural and ecological sciences CABI International, Wallingford, Oxon (CABI). pp. 287-303

The Management of long-term agricultural field experiments: procedures and policies evolved from the Rothamsted Classical Experiments

B - Book chapters etc edited externally

Leigh, R. A., Prew, R. D. and Johnston, A. E. 1994. The Management of long-term agricultural field experiments: procedures and policies evolved from the Rothamsted Classical Experiments. in: Johnston, A. E. and Leigh, R. A. (ed.) Long term experiments in agricultural and ecological sciences CABI International, Wallingford, Oxon (CABI). pp. 253-268

Historical monitoring of organic contaminants in soils

B - Book chapters etc edited externally

Jones, K. C., Johnston, A. E. and McGrath, S. P. 1994. Historical monitoring of organic contaminants in soils. in: Johnston, A. E. and Leigh, R. A. (ed.) Long-term experiments in agricultural and ecological sciences CABI International, Wallingford, Oxon (CABI). pp. 147-163

The Rothamsted Classical Experiments

B - Book chapters etc edited externally

Johnston, A. E. 1994. The Rothamsted Classical Experiments. in: Johnston, A. E. and Leigh, R. A. (ed.) Long-term experiments in agricultural and ecological sciences Wallingford, Oxon CABI International, Wallingford, Oxon (CABI). pp. 9-37

The use of a land suitability model to predict where autumn-sown, determinate genotypes of the white lupin (Lupinus albus) might be grown in England and Wales

A - Papers appearing in refereed journals

Siddons, P. A., Jones, R. J. A., Hollis, J. M., Hallett, S. H., Huyghe, C., Day, J. M., Scott, T. and Milford, G. F. J. 1994. The use of a land suitability model to predict where autumn-sown, determinate genotypes of the white lupin (Lupinus albus) might be grown in England and Wales. The Journal of Agricultural Science. 123 (2), pp. 199-205. https://doi.org/10.1017/S0021859600068465

Long-term field experiments: their importance in understanding sustainable land use

C2 - Non-edited contributions to conferences

Powlson, D. S. and Johnston, A. E. 1994. Long-term field experiments: their importance in understanding sustainable land use. Proceedings International Workshop on Sustainable Agriculture and the Conservation of Agro-ecosystems, Tsukuba, Japan, 2-4 March 1994 . National Institute of Agro-Environmental Science. pp. 124-151

Changes in glucosinolates during crop development in single- and double-low genotypes of winter oilseed rape (Brassica napus ):II. Profiles and tissue-water concentrations in vegetative tissues and developing pods

A - Papers appearing in refereed journals

Fieldsend, J. and Milford, G. F. J. 1994. Changes in glucosinolates during crop development in single- and double-low genotypes of winter oilseed rape (Brassica napus ):II. Profiles and tissue-water concentrations in vegetative tissues and developing pods. Annals of Applied Biology - AAB. 124 (3), pp. 543-555. https://doi.org/10.1111/j.1744-7348.1994.tb04158.x

Changes in glucosinolates during crop development in single- and double-low genotypes of winter oilseed rape (Brassica napus ):I Production and distribution in vegetative tissues and developing pods during development and potential role in the recycling of sulphur within the crop

A - Papers appearing in refereed journals

Fieldsend, J. and Milford, G. F. J. 1994. Changes in glucosinolates during crop development in single- and double-low genotypes of winter oilseed rape (Brassica napus ):I Production and distribution in vegetative tissues and developing pods during development and potential role in the recycling of sulphur within the crop. Annals of Applied Biology - AAB. 124 (3), pp. 531-542. https://doi.org/10.1111/j.1744-7348.1994.tb04157.x

Lupins - a potentially valuable break crop for the UK

G - Articles in popular magazines and other technical publications

Day, J. and Milford, G. F. J. 1994. Lupins - a potentially valuable break crop for the UK. ARIA newsletter. 1994, pp. 11-13.

Mobilization of aluminium in soil by acid deposition and its uptake by grass cut for hay-a Chemical Time Bomb

A - Papers appearing in refereed journals

Blake, L., Johnston, A. E. and Goulding, K. W. T. 1994. Mobilization of aluminium in soil by acid deposition and its uptake by grass cut for hay-a Chemical Time Bomb. Soil Use and Management. 10 (2), pp. 51-55. https://doi.org/10.1111/j.1475-2743.1994.tb00458.x

Effects of one to six year old ryegrass-clover leys on soil nitrogen and on the subsequent yields and fertilizer nitrogen requirements of the arable sequence winter wheat, potatoes, winter wheat, winter beans (Vicia faba ) grown on a sandy loam soil

A - Papers appearing in refereed journals

Johnston, A. E., McEwen, J., Lane, P. W., Hewitt, M. V., Poulton, P. R. and Yeoman, D. P. 1994. Effects of one to six year old ryegrass-clover leys on soil nitrogen and on the subsequent yields and fertilizer nitrogen requirements of the arable sequence winter wheat, potatoes, winter wheat, winter beans (Vicia faba ) grown on a sandy loam soil. The Journal of Agricultural Science. 122 (1), pp. 73-89. https://doi.org/10.1017/S0021859600065825

Trends in herbage yields over the last century on the Rothamsted long-term continuous hay experiment

A - Papers appearing in refereed journals

Jenkinson, D. S., Potts, J. M., Perry, J. N., Barnett, V., Coleman, K. and Johnston, A. E. 1994. Trends in herbage yields over the last century on the Rothamsted long-term continuous hay experiment. The Journal of Agricultural Science. 122 (3), pp. 365-374. https://doi.org/10.1017/S0021859600067290

Land suitability for autumn-sown determinate lupins

D1 - Technical reports: non-confidential

Siddons, P. A., Jones, R. J. A., Hollis, J. M., Hallett, S. H., Milford, G. F. J. and Scott, T. 1994. Land suitability for autumn-sown determinate lupins. Soil Survey and Land Research Centre (SSLRC) Silsoe.

Long-term field experiments: their importance in understanding sustainable land use

B - Book chapters etc edited externally

Powlson, D. S. and Johnston, A. E. 1994. Long-term field experiments: their importance in understanding sustainable land use. in: Greenland, D. J. and Szabolcs, I. (ed.) Soil Resilience and Sustainable Land Use CABI International, Wallingford, Oxon (CABI). pp. 367-394

The setting-up, conduct and applicability of long-term, continuing field experiments in agricultural research

B - Book chapters etc edited externally

Johnston, A. E. and Powlson, D. S. 1994. The setting-up, conduct and applicability of long-term, continuing field experiments in agricultural research. in: Greenland, D. J. and Szabolcs, I. (ed.) Soil Resilience and Sustainable Land Use CABI International, Wallingford, Oxon (CABI). pp. 395-421

SCI Agriculture and Environment Group symposium: use and value of organic materials in agriculture

A - Papers appearing in refereed journals

McGrath, S. P., Hall, J. E., Lopez-Real, J. M., Lee, H., Chambers, B. J., Smith, K., Stevens, R. J., Hadley, P., Smith, S., Pickering, J., Kendle, T., Allison, M. F., Johnston, A. E. and Prew, B. D. 1993. SCI Agriculture and Environment Group symposium: use and value of organic materials in agriculture. Journal of the Science of Food and Agriculture. 63 (1), pp. 97-102. https://doi.org/10.1002/jsfa.2740630117

Effects of agronomy and husbandry on glucosinolates of oilseed rape

G - Articles in popular magazines and other technical publications

Milford, G. F. J., Fieldsend, J. K., Evans, E. J. and Bilsborrow, P. B. 1993. Effects of agronomy and husbandry on glucosinolates of oilseed rape. GCIRC Bulletin. 10, pp. 22-26.

Potassium leaching from a sandy loam soil

D1 - Technical reports: non-confidential

Johnston, A. E., Goulding, K. W. T. and Mercer, E. 1993. Potassium leaching from a sandy loam soil.

The availability of the nitrogen in the crop residues of winter wheat to subsequent crops

A - Papers appearing in refereed journals

Hart, P. B. S., Powlson, D. S., Poulton, P. R., Johnston, A. E. and Jenkinson, D. S. 1993. The availability of the nitrogen in the crop residues of winter wheat to subsequent crops. The Journal of Agricultural Science. 121 (3), pp. 355-362. https://doi.org/10.1017/S0021859600085555

Determinants of yield in white lupins

G - Articles in popular magazines and other technical publications

Ney, B., Milford, G. F. J. and Day, J. 1993. Determinants of yield in white lupins. Grain Legumes. No 3, pp. 20-21.

Significance of organic matter in agricultural soils

C1 - Edited contributions to conferences/learned societies

Johnston, A. E. 1993. Significance of organic matter in agricultural soils. Jones, K. C., Mingelgrin, U., Hayes, M. H. B. and Beck, A. J. (ed.) Organic substances in soil and water: natural constituents and their influences on contaminant behaviour . Royal Society of Chemistry (RSC), Cambridge. pp. 3-18

Movement of nonionic organic chemicals in agricultural soils

A - Papers appearing in refereed journals

Beck. A. J., Johnston, A. E. and Jones, K. C. 1993. Movement of nonionic organic chemicals in agricultural soils. Critical Reviews in Environmental Science and Technology. 23 (3), pp. 219-248. https://doi.org/10.1080/10643389309388452

Seed yield and yield stability of determinate and indeterminate autumn-sown white lupins (Lupinus albus) grown at different locations in France and the UK

A - Papers appearing in refereed journals

Julier, B., Huyghe, C., Papineau, J., Milford, G. F. J., Day, J. M., Billot, C. and Mangin, P. 1993. Seed yield and yield stability of determinate and indeterminate autumn-sown white lupins (Lupinus albus) grown at different locations in France and the UK. The Journal of Agricultural Science. 121 (2), pp. 177-186. https://doi.org/10.1017/S0021859600077030

Potassium concentrations in surface and groundwaters and the loss of potassium in relation to land use

C1 - Edited contributions to conferences/learned societies

Johnston, A. E. and Goulding, K. W. T. 1993. Potassium concentrations in surface and groundwaters and the loss of potassium in relation to land use. Potassium in Ecosystems: Proceedings 23rd Colloquium of the International Potash Institute, Prague, October 1992 . International Potash Institute (IPI), Berne, Switzerland. pp. 135-158

Long-term changes in the polychlorinated biphenyl content of United Kingdom soils

A - Papers appearing in refereed journals

Alcock, R. E., Johnston, A. E., McGrath, S. P., Berrow, M. L. and Jones, K. C. 1993. Long-term changes in the polychlorinated biphenyl content of United Kingdom soils. Environmental Science & Technology. 27, pp. 1918-1923. https://doi.org/10.1021/es00046a022

Effects of previous crop, sowing date, and winter and spring applications of nitrogen on the growth, nitrogen uptake and yield of winter wheat

A - Papers appearing in refereed journals

Milford, G. F. J., Penny, A., Prew, R. D., Darby, R. J. and Todd, A. D. 1993. Effects of previous crop, sowing date, and winter and spring applications of nitrogen on the growth, nitrogen uptake and yield of winter wheat. The Journal of Agricultural Science. 121 (1), pp. 1-12. https://doi.org/10.1017/S0021859600076735

The Rothamsted long-term experiments - their relevance to modern agriculture

C1 - Edited contributions to conferences/learned societies

Poulton, P. R. and Johnston, A. E. 1993. The Rothamsted long-term experiments - their relevance to modern agriculture. Proceedings International Symposium on Long-term Static Fertilizer Experiments, Warsaw and Krakow, June 1993 . pp. 5-30

Floral determinacy in autumn-sown white lupins (Lupinus albus ): the development of varieties for cooler European climates

C1 - Edited contributions to conferences/learned societies

Milford, G. F. J., Day, J. M., Huyghe, C. and Julier, B. 1993. Floral determinacy in autumn-sown white lupins (Lupinus albus ): the development of varieties for cooler European climates. Physiology of Varieties. Aspects of Applied Biology .

Managing and maintaining long-term agricultural field experiments: the do's and the don'ts

C2 - Non-edited contributions to conferences

Leigh, R. A., Prew, R. D. and Johnston, A. E. 1993. Managing and maintaining long-term agricultural field experiments: the do's and the don'ts. Insight from Foresight. Abstracts Rothamsted 150th Anniversary Conference, Harpenden, July 1993 .

Long-term monitoring of pollutants in soils

C2 - Non-edited contributions to conferences

Jones, K. C., Johnston, A. E. and McGrath, S. P. 1993. Long-term monitoring of pollutants in soils. Insight from Foresight. Abstracts Rothamsted 150th Anniversary Conference, Harpenden, July 1993 .

The role of phosphorus in crop production and soil fertility: 150 years of field experiments at Rothamsted, United Kingdom

C1 - Edited contributions to conferences/learned societies

Johnston, A. E. and Poulton, P. R. 1993. The role of phosphorus in crop production and soil fertility: 150 years of field experiments at Rothamsted, United Kingdom. Schultz, J. J. (ed.) Phosphate Fertilizers and the Environment . International Fertilizer Development Center, Muscle Shoals. pp. 45-63

The cadmium issue - long-term changes in the cadmium content of soils and the crops grown on them

C1 - Edited contributions to conferences/learned societies

Johnston, A. E. and Jones, K. C. 1993. The cadmium issue - long-term changes in the cadmium content of soils and the crops grown on them. Schultz, J. J. (ed.) Phosphate Fertilizers and the Environment . International Fertilizer Development Center, Muscle Shoals. pp. 255-269

The Rothamsted "Classical" Experiments

C2 - Non-edited contributions to conferences

Johnston, A. E. 1993. The Rothamsted "Classical" Experiments. Insight from Foresight. Abstracts Rothamsted 150th Anniversary Conference, Harpenden, July 1993 .

The effect of modifying plant structure on the yield and maturity of the white lupin Lupinus albus

A - Papers appearing in refereed journals

Milford, G. F. J., Day, J. M., Leach, J. E., Stevenson, H. J., Huyghe, C. and Papineau, J. 1993. The effect of modifying plant structure on the yield and maturity of the white lupin Lupinus albus. Annals of Applied Biology - AAB. 122 (1), pp. 113-122. https://doi.org/10.1111/j.1744-7348.1993.tb04019.x

Long-term change in the biogeochemical cycling of atmospheric selenium: deposition to plants and soil

A - Papers appearing in refereed journals

Haygarth, P. M., Cooke, A. I., Jones, K. C., Harrison, A. F. and Johnston, A. E. 1993. Long-term change in the biogeochemical cycling of atmospheric selenium: deposition to plants and soil. Journal of Geophysical Research. 98 (D9), pp. 769-776. https://doi.org/10.1029/93JD01023

Atmospheric deposition of selenium to herbage from archived samples at Rothamsted, SE England

C1 - Edited contributions to conferences/learned societies

Haygarth, P. M., Jones, K. C., Cooke, A. C., Harrison, A. F. and Johnston, A. E. 1993. Atmospheric deposition of selenium to herbage from archived samples at Rothamsted, SE England. Allan, R. J. and Nriagu, J. O. (ed.) Heavy Metals in the Environment. CEP Consultants Ltd, Edinburgh.

The cadmium issue - long-term changes in the cadmium content of soils and the crops grown on them", International Workshop on phosphate fertilizers and the environment. Mar 23-27, 1992 Tampa, Florida, USA

D1 - Technical reports: non-confidential

Johnston, A. E. and Jones, K. C. 1992. The cadmium issue - long-term changes in the cadmium content of soils and the crops grown on them", International Workshop on phosphate fertilizers and the environment. Mar 23-27, 1992 Tampa, Florida, USA.

The release of toxic heavy metals from acidifying derelict (abandoned) farmland

C2 - Non-edited contributions to conferences

Goulding, K. W. T., Blake, L. and Johnston, A. E. 1992. The release of toxic heavy metals from acidifying derelict (abandoned) farmland. Konsten, C. J. M. (ed.) Report International Workshop on Delayed Environmental Effects of Chemical Pollution with Focus on the Nordic Countries, Uppsala, September 1991. Chemical Time Bomb Project, Leidschendam. pp. 46

The effect of crop nutrition on sugar beet quality

C1 - Edited contributions to conferences/learned societies

Bell, C. I., Jones, G. F., Milford, G. F. J. and Leigh, R. A. 1992. The effect of crop nutrition on sugar beet quality. Production and Protection of Sugar Beet. Aspects of Applied Biology .

Effects of pre-harvest treatment on the yield and quality of winter oilseed rape

D1 - Technical reports: non-confidential

Ogilvy, S. E., Milford, G. F. J., Evans, E. J. and Freer, J. B. S. 1992. Effects of pre-harvest treatment on the yield and quality of winter oilseed rape. Home Grown Cereals Authority (HGCA) London.

Factors affecting glucosinolate variation

C1 - Edited contributions to conferences/learned societies

Evans, E. and Milford, G. F. J. 1992. Factors affecting glucosinolate variation. Oilseeds: a Strategy for Levy-Funded Research-HGCA Conference Paper 1992. Home Grown Cereals Authority (HGCA) London. pp. 4-6

Crop morphotypes of Lupinus albus suited to northern Europe

C1 - Edited contributions to conferences/learned societies

Milford, G. F. J., Day, J. M. and Huyghe, C. 1992. Crop morphotypes of Lupinus albus suited to northern Europe. Proceedings Conference Europeenne sur les Proteagineux, 1st, Angers, 1992. pp. 289-290

Evidence for an increase in the cadmium content of herbage since the 1860s

A - Papers appearing in refereed journals

Jones, K. C., Jackson, A. and Johnston, A. E. 1992. Evidence for an increase in the cadmium content of herbage since the 1860s. Environmental Science & Technology. 26 (4), pp. 834-836. https://doi.org/10.1021/es00028a026

Evidence for a decline of PCBs and PAHs in rural vegetation and air in the United Kingdom

A - Papers appearing in refereed journals

Jones, K. C., Sanders, G., Wild, S. R., Burnett, V. and Johnston, A. E. 1992. Evidence for a decline of PCBs and PAHs in rural vegetation and air in the United Kingdom. Nature. 356 (6365), pp. 137-140. https://doi.org/10.1038/356137a0

The polynuclear aromatic hydrocarbon (PAH) content of herbage from a long-term grassland experiment

A - Papers appearing in refereed journals

Wild, S. R., Jones, K. C. and Johnston, A. E. 1992. The polynuclear aromatic hydrocarbon (PAH) content of herbage from a long-term grassland experiment. Atmospheric Environment. 26A (7), pp. 1299-1307. https://doi.org/10.1016/0960-1686(92)90390-7

Influence of soil type, crop management and weather on the recovery of 15N-labelled fertilizer applied to winter wheat in spring

A - Papers appearing in refereed journals

Powlson, D. S., Hart, P. B. S., Poulton, P. R., Johnston, A. E. and Jenkinson, D. S. 1992. Influence of soil type, crop management and weather on the recovery of 15N-labelled fertilizer applied to winter wheat in spring. The Journal of Agricultural Science. 118 (1), pp. 83-100. https://doi.org/10.1017/S0021859600068040

Organic matter/mineral matter in the context of clean technology

C1 - Edited contributions to conferences/learned societies

Johnston, A. E. 1991. Organic matter/mineral matter in the context of clean technology. Seminar on Agriculture and Aquaculture: Environment Northern Seas Conference Report.

Increases in the polychlorinated dibenzo-p-dioxin and -furan content of soils and vegetation since the 1840s

A - Papers appearing in refereed journals

Kjeller, L-O., Jones, K. C., Johnston, A. E. and Rappe, C. 1991. Increases in the polychlorinated dibenzo-p-dioxin and -furan content of soils and vegetation since the 1840s. Environmental Science & Technology. 25 (9), pp. 1619-1627.

Benefits from long-term ecosystem research: some examples from Rothamsted

B - Book chapters etc edited externally

Johnston, A. E. 1991. Benefits from long-term ecosystem research: some examples from Rothamsted. in: Risser, P. G. (ed.) Long-term ecological research John Wiley & Sons Chichester, West Sussex. pp. 89-113

Transport and fate of isoproturon in a mole drained Denchworth clay soil at Brimstone Farm

C1 - Edited contributions to conferences/learned societies

Beck, A. J., Jones, K. C. and Johnston, A. E. 1991. Transport and fate of isoproturon in a mole drained Denchworth clay soil at Brimstone Farm. Catt, J. A. (ed.) The Brimstone Experiment Proceedings of a Conference on Collaborative Work by ADAS Field Drainage Experimental Unit and Rothamsted Experimental Station, 15-16 October, 1991. Lawes Agricultural Trust, (LAT) Harpenden. pp. 75-76

Effects of sowing date and plant structure on radiation interception, time of maturity and yield of autumn-sown Lupinus albus

C1 - Edited contributions to conferences/learned societies

Milford, G. F. J., Day, J. M., Leach, J. E., Stevenson, H. J., Scott, T. and McEwen, J. 1991. Effects of sowing date and plant structure on radiation interception, time of maturity and yield of autumn-sown Lupinus albus. Production and Protection of Legumes. Aspects of Applied Biology .

Effects of sowing date and plant structure on radiation interception, time of maturity and yield of autumn-sown Lupinus albus

C1 - Edited contributions to conferences/learned societies

Milford, G. F. J., Day, J. M., Leach, J. E., Stevenson, H. J., Scott, T. and McEwen, J. 1991. Effects of sowing date and plant structure on radiation interception, time of maturity and yield of autumn-sown Lupinus albus. Production and Protection of Legumes. Aspects of Applied Biology 27. pp. 183-188

Effects of fungicides and disease on growth parameters and seed glucosinolate concentration of oilseed rape

C1 - Edited contributions to conferences/learned societies

Bock, C. H., Doughty, K. J., Fieldsend, J. K., Spink, J., Bilsborrow, P. E., Rawlinson, C. J. and Milford, G. F. J. 1991. Effects of fungicides and disease on growth parameters and seed glucosinolate concentration of oilseed rape. Proceedings GCIRC 8th International Rapeseed Conference, Saskatoon Canada, 9-11 July 1991.

The long-term (100 years) accumulation and release of toxic metals in acidified soils under grassland and naturally-regenerating woodland

C2 - Non-edited contributions to conferences

Blake, L., Goulding, K. W. T. and Johnston, A. E. 1991. The long-term (100 years) accumulation and release of toxic metals in acidified soils under grassland and naturally-regenerating woodland. Selinus, O. (ed.) Abstracts 2nd International Symposium on Environmental Geochemistry. Sveriges Geologiska Undersokning, Uppsala.

Potential changes in soil fertility from arable farming including organic systems

C1 - Edited contributions to conferences/learned societies

Johnston, A. E. 1991. Potential changes in soil fertility from arable farming including organic systems.

Soil fertility and soil organic matter

B - Book chapters etc edited externally

Johnston, A. E. 1991. Soil fertility and soil organic matter. in: Wilson, W. S. (ed.) Advances in soil organic matter research: the impact on agriculture and the environment Royal Society of Chemistry (RSC), Cambridge. pp. 299-314

The implications of canopy structure for performance and yield

B - Book chapters etc edited externally

Milford, G. F. J. 1991. The implications of canopy structure for performance and yield. in:

Significance of atmospheric inputs of lead to grassland at one site in the United Kingdom since 1860

A - Papers appearing in refereed journals

Jones, K. C. and Johnston, A. E. 1991. Significance of atmospheric inputs of lead to grassland at one site in the United Kingdom since 1860. Environmental Science & Technology. 25 (6), pp. 1174-1178. https://doi.org/10.1021/es00018a025

Factors that determine levels of glucosinolates in oilseed rape

A - Papers appearing in refereed journals

Milford, G. F. J., Fieldsend, J. K., Evans, E. J. and Bilsborrow, P. B. 1991. Factors that determine levels of glucosinolates in oilseed rape. Bullin - Groupe Consultat Iif International de Recherche sur la Colza. 7, pp. 71-73.

Factors causing variation in glucosinolates in oilseed rape

B - Book chapters etc edited externally

Milford, G. F. J. and Evans, E. J. 1991. Factors causing variation in glucosinolates in oilseed rape. in:

Evidence for a decline in rural herbage lead levels in the U.K.

A - Papers appearing in refereed journals

Jones, K. C., Symon, C., Taylor, P. J. L., Walsh, J. and Johnston, A. E. 1991. Evidence for a decline in rural herbage lead levels in the U.K. Atmospheric Environment. 25 (2), pp. 361-369. https://doi.org/10.1016/0960-1686(91)90307-S

Liebig and the Rothamsted experiments

C1 - Edited contributions to conferences/learned societies

Johnston, A. E. 1990. Liebig and the Rothamsted experiments. Berichte der Justus Liebig-Gesellschaft zu Giessen: Vortrage des Symposiums 150 Jahre Agrikulturchemie, 27 Oktober 1990. Justus Liebig-Gesellschaft, Giessen. pp. 37-64

Soil fertility-how can we define it in intensive agricultural systems?

C1 - Edited contributions to conferences/learned societies

Johnston, A. E. 1990. Soil fertility-how can we define it in intensive agricultural systems? International Scientific Conference on Agrochemical Criteria of Soil Fertility, 11th, Wrotslav, September 1989. Polish Academy of Science, Pulawy. pp. 212-230

The physiological basis of glucosinolate accumulation in the developing seed of oilseed rape (B. napus)

C1 - Edited contributions to conferences/learned societies

Evans, E. J., Bilsborrow, P. E., Milford, G. F. J., Fieldsend, J. E. and Spink, J. 1990. The physiological basis of glucosinolate accumulation in the developing seed of oilseed rape (B. napus). Proceedings of the 1st Congress of the European Society of Agronomy, Paris, 1990. pp. 4-0-04

The use of plant and soil analyses to predict the potassium supplying capacity of the soil

C1 - Edited contributions to conferences/learned societies

Johnston, A. E. and Goulding, K. W. T. 1990. The use of plant and soil analyses to predict the potassium supplying capacity of the soil. Proceedings of the 22nd Colloquium of the International Potash Institute., Soligorek, USSR, 1990. International Potash Institute (IPI), Berne, Switzerland. pp. 177-204

North European outlook of plant nutrition guidelines - experience in the UK

C1 - Edited contributions to conferences/learned societies

Johnston, A. E. 1990. North European outlook of plant nutrition guidelines - experience in the UK. Seminar 191, Nordiska Jordbruksforskares Forening, Sigtuna, Sweden, 1990.

Effects of foliar applied urea on leaf composition, photosynthesis and grain quality

C2 - Non-edited contributions to conferences

Lawlor, D. W., Milford, G. F. J., Mitchell, V. J. and Mitchell, R. A. C. 1990. Effects of foliar applied urea on leaf composition, photosynthesis and grain quality. AFRC Meeting : Plant and Soil Nitrogen Metabolism, Lancaster, 1990. pp. 58

Storage root quality in sugarbeet in relation to nitrogen uptake

A - Papers appearing in refereed journals

Pocock, T. O., Milford, G. F. J. and Armstrong, M. J. 1990. Storage root quality in sugarbeet in relation to nitrogen uptake. The Journal of Agricultural Science. 115, pp. 355-362. https://doi.org/10.1017/S0021859600075791

Losses of nitrate from arable land by leaching and their effect on nitrates in drainage and groundwater

C1 - Edited contributions to conferences/learned societies

Goulding, K. W. T., Johnston, A. E., Webster, C. P. and Howe, M. 1990. Losses of nitrate from arable land by leaching and their effect on nitrates in drainage and groundwater. Merckx, R., Vlassak, K. and Vereecken, H. (ed.) Fertilization and the environment. University Press, Leuven. pp. 26-34

Straw incorporation - its effects on soil fertility.

C2 - Non-edited contributions to conferences

Johnston, A. E. 1990. Straw incorporation - its effects on soil fertility. Straw disposal and soil management after 1992. Proceedings Lincolnshire Agricultural Society, November, 1990. pp. 1-10.

Low input agriculture - is it sustainable?

C1 - Edited contributions to conferences/learned societies

Johnston, A. E. 1990. Low input agriculture - is it sustainable? Journal of the Fertilizer Society of South Africa .

An overview of the nitrogen cycle.

C1 - Edited contributions to conferences/learned societies

Johnston, A. E. 1990. An overview of the nitrogen cycle. Nitrates and irrigation. UK Irrigation Association Technical Monograph 3 . Eds P.J.C. Hamer & P.B. Leeds-Harrison. Cranfield Press and UK Irrigation Association, Silsoe.. pp. 1-14

Atmospheric inputs of heavy metals and organic contaminants to agroecosystems

C2 - Non-edited contributions to conferences

Jones, K. C., Haygarth, P. M. and Johnston, A. E. 1990. Atmospheric inputs of heavy metals and organic contaminants to agroecosystems. Agriculture Group Symposium, Agriculture and the Atmosphere.

Effects of irrigation, N fertilizer, cutting frequency and pesticides on ryegrass, ryegrass–clover mixtures, clover and lucerne grown on heavy and light land

A - Papers appearing in refereed journals

McEwen, J., Day, W., Henderson, I. F., Johnston, A. E., Plumb, R. T., Poulton, P. R., Spaull, A. M., Stribley, D. P., Todd, A. D. and Yeoman, D. P. 1989. Effects of irrigation, N fertilizer, cutting frequency and pesticides on ryegrass, ryegrass–clover mixtures, clover and lucerne grown on heavy and light land. The Journal of Agricultural Science. 112 (2), pp. 227-247. https://doi.org/10.1017/S0021859600085130

Changes in glucosinolate concentrations during the vegetative growth of single- and double-low cultivars of winter oilseed rape

A - Papers appearing in refereed journals

Milford, G. F. J., Fieldsend, J. K., Porter, A. J. R., Rawlinson, C. J., Evans, E. J. and Bilsborrow, P. E. 1989. Changes in glucosinolate concentrations during the vegetative growth of single- and double-low cultivars of winter oilseed rape. Aspects of Applied Biology. 23, p. 83.

Rational potassium manuring for arable cropping systems.

A - Papers appearing in refereed journals

Johnston, A. E. and Goulding, K. W. T. 1989. Rational potassium manuring for arable cropping systems. Potash Review. 12 (2), pp. 1-7.

The value of long-term experiments - a personal view

B - Book chapters etc edited externally

Johnston, A. E. 1989. The value of long-term experiments - a personal view. in: Likens, G. E. (ed.) In Long-term studies in ecology : approaches and alternatives Springer-Verlag, New York. pp. 175-179

The value of long-term experiments in agricultural research

C1 - Edited contributions to conferences/learned societies

Johnston, A. E. 1989. The value of long-term experiments in agricultural research. In Proceedings of the Sanborn Field Centenniel, University of Missouri, 1989. University of Missouri, Columbia. pp. 1-20

The nitrogen cycle in UK arable agriculture.

A - Papers appearing in refereed journals

Johnston, A. E. and Jenkinson, D. S. 1989. The nitrogen cycle in UK arable agriculture. Proceedings - Fertiliser Society, London. 286, pp. 1-24.

The role of nitrogen in agriculture.

C2 - Non-edited contributions to conferences

Johnston, A. E. 1989. The role of nitrogen in agriculture. Living with nitrates. Conference Proceedings of the Licolnshire Agricultural Society, 1989. pp. 1-11

Effects of foliar-applied ureaon leaf composition, photosynthesis and grain quality and yield.

C2 - Non-edited contributions to conferences

Lawlor, D. W., Milford, G. F. J., Mitchell, V. J. and Mitchell, R. A. C. 1989. Effects of foliar-applied ureaon leaf composition, photosynthesis and grain quality and yield. AFRC Meeting on Plant and Soil Nitrogen Metabolism, Lancaster, 1989, Abstract 58..

Physiological aspects of water in the crop.

C1 - Edited contributions to conferences/learned societies

Milford, G. F. J. 1989. Physiological aspects of water in the crop. Proceedings of the 4th International Sugar-beet Working Group, Valladolid, 1988, . pp. 3-10

Agronomic factors influencing the glucosinolate content of double-low winter-sown oilseed rape in the UK.

C2 - Non-edited contributions to conferences

Evans, E. J., Bilsborrow, P. E., Milford, G. F. J., Fieldsend, J. K., Porter, A. J. R. and Rawlinson, C. J. 1989. Agronomic factors influencing the glucosinolate content of double-low winter-sown oilseed rape in the UK. Proceedings Groupe Consultatif International de Recherche sur la Colza Conference, Dijon, 1989. pp. 80-84..

Diseases and responses to disease and pest control on single- and double-low cultivars of winter oilseed rape.

C1 - Edited contributions to conferences/learned societies

Rawlinson, C. J., Doughty, K. J., Bock, C. H., Church, V. J., Milford, G. F. J. and Fieldsend, J. K. 1989. Diseases and responses to disease and pest control on single- and double-low cultivars of winter oilseed rape. Production and protection of oilseed rape and other brassica crops. Aspects of Applied Biology 23. pp. 393-400

Accumulation of dry matter in oilseed rape crops in relation to the reflection and absorption of solar radiation by different canopy structures.

A - Papers appearing in refereed journals

Leach, J. E., Milford, G. F. J., Mullen, L. A., Scott, T. and Stevenson, H. J. 1989. Accumulation of dry matter in oilseed rape crops in relation to the reflection and absorption of solar radiation by different canopy structures. Aspects of Applied Biology. 23, pp. 117-123.

Accumulation and loss of nitrogen from manure, sludge and compost: long-term experiments at Rothamsted and Woburn.

C1 - Edited contributions to conferences/learned societies

Johnston, A. E., McGrath, S. P., Poulton, P. R. and Lane, P. W. 1989. Accumulation and loss of nitrogen from manure, sludge and compost: long-term experiments at Rothamsted and Woburn. Nitrogen in organic wastes applied to soils , J.A. Hansen & K. Henriksen eds. Academic Press, London. pp. 126-139

Changes in glucosinolate concentrations during the vegetative growth of single- and double-low cultivars of winter oilseed rape.

C1 - Edited contributions to conferences/learned societies

Milford, G. F. J., Fieldsend, J. K., Porter, A. J. R., Rawlinson, C. J., Evans, E. J. and Bilsborrow, P. E. 1989. Changes in glucosinolate concentrations during the vegetative growth of single- and double-low cultivars of winter oilseed rape. Production and protection of oilseed rape and other brassica crops. Aspects of Applied Biology .

The effects of time and method of harvest on seed yield and glucosinolate concentration of winter oilseed rape.

A - Papers appearing in refereed journals

Freer, J. B. S., Ogilvy, S. E., Evans, E. J., Bilsborrow, P. E., Rawlinson, C. J., Milford, G. F. J. and Fieldsend, J. K. 1989. The effects of time and method of harvest on seed yield and glucosinolate concentration of winter oilseed rape. Aspects of Applied Biology. 23, pp. 145-150.

Variation in seed glucosinolate levels as influenced by agronomic inputs.

A - Papers appearing in refereed journals

Evans, E. J., Bilsborrow, P. E., Ludeke, F. H., Milford, G. F. J., Fieldsend, J. K., Rawlinson, C. J. and Spink, J. 1989. Variation in seed glucosinolate levels as influenced by agronomic inputs. Aspects of Applied Biology. 23, pp. 151-158.

Between and within plant variation in seed glucosinolate concentrations in the winter oilseed rape cv. Ariana.

A - Papers appearing in refereed journals

Milford, G. F. J., Fieldsend, J. K., Spink, J. and Child, R. D. 1989. Between and within plant variation in seed glucosinolate concentrations in the winter oilseed rape cv. Ariana. Aspects of Applied Biology. 23, pp. 173-176.

Changes in glucosinolate concentrations of single- and double-low varieties of autumn sown oilseed rape (B. napus ) during seed development.

A - Papers appearing in refereed journals

Bilsborrow, P. E., Evans, E. J., Milford, G. F. J., Fieldsend, J. K. and Spink, J. 1989. Changes in glucosinolate concentrations of single- and double-low varieties of autumn sown oilseed rape (B. napus ) during seed development. Aspects of Applied Biology. 23, pp. 91-100.

Ways of overcoming constraints to reduced tillage; effect of changing straw disposal on soil nitrogen.

C1 - Edited contributions to conferences/learned societies

Johnston, A. E. 1989. Ways of overcoming constraints to reduced tillage; effect of changing straw disposal on soil nitrogen. Agriculture. Energy saving by reduced soil tillage. Proceedings of a workshop, Gottingen, 1987. K. Baumer & W. Ehlers eds. Commission of the European Communities (CEC) Brussels, Belgium. pp. 133-143

Glucosinolates in oilseed rape (Brassica napus) and the incidence of pollen beetles (Meligethes aeneus)

A - Papers appearing in refereed journals

Milford, G. F. J., Porter, A. J. R., Fieldsend, J. K., Miller, C. A., Leach, J. E. and Williams, I. H. 1989. Glucosinolates in oilseed rape (Brassica napus) and the incidence of pollen beetles (Meligethes aeneus). Annals of Applied Biology - AAB. 115 (2), pp. 375-380. https://doi.org/10.1111/j.1744-7348.1989.tb03396.x

Benefits from long-term ecological research; some examples from Rothamsted.

C1 - Edited contributions to conferences/learned societies

Johnston, A. E. 1989. Benefits from long-term ecological research; some examples from Rothamsted. Final Report of the International Workshop "Long-term ecological research - a global perspective", Man and the Biosphere Program, Berchtesgaden, 1989 . UNESCO, MAB, Bonn. pp. 288-312

Predicting the lime requirement of soils under permanent grassland and arable crops.

A - Papers appearing in refereed journals

Goulding, K. W. T., McGrath, S. P. and Johnston, A. E. 1989. Predicting the lime requirement of soils under permanent grassland and arable crops. Soil Use and Management. 5 (2), pp. 54-57. https://doi.org/10.1111/j.1475-2743.1989.tb00760.x

Cadmium in cereal grain and herbage from long-term experimental plots at Rothamsted, UK.

A - Papers appearing in refereed journals

Jones, K. C. and Johnston, A. E. 1989. Cadmium in cereal grain and herbage from long-term experimental plots at Rothamsted, UK. Environmental Pollution. 57 (3), pp. 199-216. https://doi.org/10.1016/0269-7491(89)90012-2

Long-term atmospheric deposition and soil acidification at Rothamsted Experimental Station, England.

B - Book chapters etc edited externally

Goulding, K. W. T. and Johnston, A. E. 1989. Long-term atmospheric deposition and soil acidification at Rothamsted Experimental Station, England. in: Longhurst, J. W. S. (ed.) Acid deposition, sources, effects and controls . J.W.S. Longhurst, ed. British Library (BL). pp. 213-228

Polynuclear aromatic hydrocarbons in an agricultural soil: long term changes in profile distribution.

A - Papers appearing in refereed journals

Jones, K. C., Stratford, J. A., Tidridge, P., Waterhouse, K. S. and Johnston, A. E. 1989. Polynuclear aromatic hydrocarbons in an agricultural soil: long term changes in profile distribution. Environmental Pollution. 56 (4), pp. 337-351. https://doi.org/10.1016/0269-7491(89)90079-1

Phosphorus cycling in intensive arable agriculture.

C1 - Edited contributions to conferences/learned societies

Johnston, A. E. 1989. Phosphorus cycling in intensive arable agriculture. Phosphorus cycles in terrestial and aquatic ecosystems. Proceedings of a Workshop arranged by SCOPE, Czerniejewo, Poland, 1988, . H. Tiesse ed. University of Saskatchewan, Saskatoon.. pp. 123-136

Changes in the polynuclear aromatic hydrocarbon content of wheat grain and pasture grassland over the last century from one site in the UK.

A - Papers appearing in refereed journals

Jones, K. C., Grimmer, G., Jacob, J. and Johnston, A. E. 1989. Changes in the polynuclear aromatic hydrocarbon content of wheat grain and pasture grassland over the last century from one site in the UK. Science of the Total Environment. 78 (1), pp. 117-130. https://doi.org/10.1016/0048-9697(89)90026-0

Increases in the polynuclear aromatic hydrocarbon content of an agricultural soil over the last century

A - Papers appearing in refereed journals

Jones, K. C., Stratford, J. A., Waterhouse, K. S., Furlong, E. T., Giger, W., Hites, R. A., Schaffner, C. and Johnston, A. E. 1989. Increases in the polynuclear aromatic hydrocarbon content of an agricultural soil over the last century. Environmental Science & Technology. 23, pp. 95-101. https://doi.org/10.1021/es00178a012

Rothamsted and the nitrogen story.

G - Articles in popular magazines and other technical publications

Johnston, A. E. 1988. Rothamsted and the nitrogen story. Property News. Autumn/Winter, p. 6.

A Rothamsted view of nitrogen management.

G - Articles in popular magazines and other technical publications

Johnston, A. E. 1988. A Rothamsted view of nitrogen management. The Agronomist. No.3, pp. 10-12.

Optimization of lime applications to soils under permanent grassland and arable crops.

C1 - Edited contributions to conferences/learned societies

Goulding, K. W. T., McGrath, S. P. and Johnston, A. E. 1988. Optimization of lime applications to soils under permanent grassland and arable crops. Proceedings 7th Colloquium International Association for the Optimization of Plant Nutrition, Nyborg, Denmark, 1988. Paper 402. 6pp..

Potassium fertilisation to maintain a K-balance under various farming systems.

C1 - Edited contributions to conferences/learned societies

Johnston, A. E. 1988. Potassium fertilisation to maintain a K-balance under various farming systems. Nutrient balances and the need for potassium. Proceedings 13th IPI Congress, Rheims, 1986. Worblaufen-Bern : IPI. pp. 199-226

Atmospheric inputs of cadmium to an arable agricultural system.

C1 - Edited contributions to conferences/learned societies

Jones, K. C., Symon, C. J. and Johnston, A. E. 1988. Atmospheric inputs of cadmium to an arable agricultural system. Air pollution and ecosystems. Proceedings International Symposium, Grenoble, 1987. Ed. P. Mathy. Dordrecht : Reidel. pp. 548-553

The value of long-term experiments - a personal view.

B - Book chapters etc edited externally

Johnston, A. E. 1988. The value of long-term experiments - a personal view. in: Long-term studies in ecology : approaches and alternatives. Ed. G.E. Likens.

Rational potassium manuring for arable cropping systems.

A - Papers appearing in refereed journals

Johnston, A. E. and Goulding, K. W. T. 1988. Rational potassium manuring for arable cropping systems. Journal of the Science of Food and Agriculture. 46 (1), pp. 1-11. https://doi.org/10.1002/jsfa.2740460102

Rational K manuring. Agriculture Group Symposium : sodium and potassium in plant nutrition.

C2 - Non-edited contributions to conferences

Johnston, A. E. and Goulding, K. W. T. 1988. Rational K manuring. Agriculture Group Symposium : sodium and potassium in plant nutrition. Wiley.

The nitrogen nutrition of sugar beet : progress in research toward site-specific fertiliser requirements

E - Books edited/written by staff member, alone/with others

Pocock, T. O., Milford, G. F. J. and Armstrong, M. 1988. The nitrogen nutrition of sugar beet : progress in research toward site-specific fertiliser requirements.

Growth and dry-matter partitioning in sugar beet.

A - Papers appearing in refereed journals

Milford, G. F. J., Travis, K. Z., Pocock, T. O., Jaggard, K. W. and Day, W. 1988. Growth and dry-matter partitioning in sugar beet. The Journal of Agricultural Science. 110 (2), pp. 301-308. https://doi.org/10.1017/S0021859600081326

Kaliumdungung zur Aufrechterhaltung eines ausgeglichenen K-Versorgungsgrades unter verschiedenen Anbausystemen.

C1 - Edited contributions to conferences/learned societies

Johnston, A. E. 1988. Kaliumdungung zur Aufrechterhaltung eines ausgeglichenen K-Versorgungsgrades unter verschiedenen Anbausystemen.

Long-term changes in the polynuclear aromatic hydrocarbon content of agricultural soils.

C1 - Edited contributions to conferences/learned societies

Jones, K. C., Stratford, J. A., Waterhouse, K. S. and Johnston, A. E. 1988. Long-term changes in the polynuclear aromatic hydrocarbon content of agricultural soils. Air pollution and ecosystems. Proceedings International Symposium, Grenoble, 1987. Ed. P. Mathy. Dordrecht : Reidel. pp. 792-797

The effect of atmospheric deposition, especially of nitrogen, on grassland and woodland at Rothamsted Experimental Station, England, measured over more than 100 years.

C1 - Edited contributions to conferences/learned societies

Goulding, K. W. T., Johnston, A. E. and Poulton, P. R. 1988. The effect of atmospheric deposition, especially of nitrogen, on grassland and woodland at Rothamsted Experimental Station, England, measured over more than 100 years. Air pollution and ecosystems. Proceedings International Symposium, Grenoble, 1987. Ed. P. Mathy. Dordrecht : Reidel. pp. 841-846

Rothamsted Soils and Crop Production Division and publications

A - Papers appearing in refereed journals

Johnston, A. E. 1987. Rothamsted Soils and Crop Production Division and publications. Rothamsted Experimental Station Report. 1987 (part 1), pp. 93-131;133-159.

Saxmundham Experimental Station 1899-1986 A review of the achievements during 1965-1986

A - Papers appearing in refereed journals

Johnston, A. E. 1987. Saxmundham Experimental Station 1899-1986 A review of the achievements during 1965-1986. Rothamsted Experimental Station Report. 1986 (part 2), pp. 265-279.

Effects of soil organic matter on yields of crops in long-term experiments at Rothamsted and Woburn.

A - Papers appearing in refereed journals

Johnston, A. E. 1987. Effects of soil organic matter on yields of crops in long-term experiments at Rothamsted and Woburn. INTECOL Bulletin. 15, pp. 9-16.

Retrospective analysis of an archived soil collection. I. Metals.

A - Papers appearing in refereed journals

Jones, K. C., Symon, C. J. and Johnston, A. E. 1987. Retrospective analysis of an archived soil collection. I. Metals. Science of the Total Environment. 61, pp. 131-144. https://doi.org/10.1016/0048-9697(87)90363-9

The usefulness of expressing nitrogen concentrations in crops on the basis of tissue water.

G - Articles in popular magazines and other technical publications

Leigh, R. A. and Johnston, A. E. 1987. The usefulness of expressing nitrogen concentrations in crops on the basis of tissue water. Journal of the Science of Food and Agriculture. 38 (4), pp. 317-318.

Retrospective analysis of an archived soil collection. II. Cadmium.

A - Papers appearing in refereed journals

Jones, K., Symon, C. J. and Johnston, A. E. 1987. Retrospective analysis of an archived soil collection. II. Cadmium. Science of the Total Environment. 67 (1), pp. 75-89. https://doi.org/10.1016/0048-9697(87)90067-2.

Will Europe return to fallowing?

G - Articles in popular magazines and other technical publications

Johnston, A. E. 1987. Will Europe return to fallowing? SPAN. 30, pp. 53-54.

Reducing nitrate pollution.

G - Articles in popular magazines and other technical publications

Johnston, A. E. 1987. Reducing nitrate pollution.

Straw incorporation and its implications for crop protection and wildlife.

G - Articles in popular magazines and other technical publications

Johnston, A. E., Smith, B. and Patterson, D. 1987. Straw incorporation and its implications for crop protection and wildlife.

Le soufre en Grande-Bretagne.

G - Articles in popular magazines and other technical publications

McGrath, S. P. and Johnston, A. E. 1987. Le soufre en Grande-Bretagne. Perspectives Agricoles. 111, pp. 45-47.

Nitrogen - maximising benefits and minimising problems.

G - Articles in popular magazines and other technical publications

Johnston, A. E. 1987. Nitrogen - maximising benefits and minimising problems.

The absorption and physiological roles of P and K in the sugar beet plant with reference to the functions of Na and Mg.

G - Articles in popular magazines and other technical publications

Kirkby, E. A., Armstrong, M. J. and Milford, G. F. J. 1987. The absorption and physiological roles of P and K in the sugar beet plant with reference to the functions of Na and Mg.

Evaluation of a nitrogen leaching/mineralization model for sugar beet.

A - Papers appearing in refereed journals

Whitmore, A. P., Milford, G. F. J. and Armstrong, M. J. 1987. Evaluation of a nitrogen leaching/mineralization model for sugar beet. Plant and Soil. 101 (1), pp. 61-65. https://doi.org/10.1007/BF02371031

Rothamsted Soils Division

A - Papers appearing in refereed journals

Johnston, A. E. 1986. Rothamsted Soils Division. Rothamsted Experimental Station Report. 1986 (part 1), pp. 137-166;186-191.

Cadmium : temporal trends in archived soils from a semi-rural location in the UK In: Chemicals in the environment ed. J.M. Lester, R. Perry and, R.M. Sterritt, 553-559

D1 - Technical reports: non-confidential

Jones, K. C., Symon, C. J. and Johnston, A. E. 1986. Cadmium : temporal trends in archived soils from a semi-rural location in the UK In: Chemicals in the environment ed. J.M. Lester, R. Perry and, R.M. Sterritt, 553-559.

The nitrogen cycle in the Broadbalk Wheat Experiment : recovery and losses of 15N-labelled fertilizer applied in spring and inputs of nitrogen from the atmosphere

A - Papers appearing in refereed journals

Powlson, D. S., Pruden, G., Johnston, A. E. and Jenkinson, D. S. 1986. The nitrogen cycle in the Broadbalk Wheat Experiment : recovery and losses of 15N-labelled fertilizer applied in spring and inputs of nitrogen from the atmosphere. The Journal of Agricultural Science. 107 (3), pp. 591-609. https://doi.org/10.1017/S0021859600069768

The nitrogen cycle under continuous winter wheat

G - Articles in popular magazines and other technical publications

Jenkinson, D. S., Powlson, D. S. and Johnston, A. E. 1986. The nitrogen cycle under continuous winter wheat.

AFRC Research on straw disposal.

G - Articles in popular magazines and other technical publications

Johnston, A. E. 1986. AFRC Research on straw disposal.

Accumulation and subcellular distribution of cations in relation to the growth of potassium-deficient barley

A - Papers appearing in refereed journals

Leigh, R. A., Chater, M., Storey, R. and Johnston, A. E. 1986. Accumulation and subcellular distribution of cations in relation to the growth of potassium-deficient barley. Plant, Cell and Environment. 9 (7), pp. 595-604. https://doi.org/10.1111/1365-3040.ep11616346

An investigation of the usefulness of phosphorus concentrations in tissue water as indicators of the phosphorus status of field-grown spring barley.

A - Papers appearing in refereed journals

Leigh, R. A. and Johnston, A. E. 1986. An investigation of the usefulness of phosphorus concentrations in tissue water as indicators of the phosphorus status of field-grown spring barley. The Journal of Agricultural Science. 107 (2), pp. 329-333. https://doi.org/10.1017/S0021859600087128

Phosphate fertilisers - is water solubility important?

A - Papers appearing in refereed journals

Copestake, K. G., Johnston, A. E., Paulson, G. A. and Richards, I. R. 1986. Phosphate fertilisers - is water solubility important? Journal of the Science of Food and Agriculture. 37 (1), pp. 18-19.

Modelling the long-term residual effects of phosphorus residues in soil.

A - Papers appearing in refereed journals

Johnston, A. E., Poulton, P. R. and Lane, P. W. 1986. Modelling the long-term residual effects of phosphorus residues in soil. Journal of the Science of Food and Agriculture. 37 (1), pp. 8-19. https://doi.org/10.1002/jsfa.2740370103

Cadmium accumulation in soils from long-continued applications of superphosphate.

A - Papers appearing in refereed journals

Rothbaum, H. P., Goguel, R. L., Johnston, A. E. and Mattingly, G. E. G. 1986. Cadmium accumulation in soils from long-continued applications of superphosphate. Journal of Soil Science. 37 (1), pp. 99-107. https://doi.org/10.1111/j.1365-2389.1986.tb00011.x

Soil organic matter, effects on soils and crops

A - Papers appearing in refereed journals

Johnston, A. E. 1986. Soil organic matter, effects on soils and crops. Soil Use and Management. 2 (3), pp. 97-105. https://doi.org/10.1111/j.1475-2743.1986.tb00690.x

The dynamics of nitrogen uptake and its remobilization during the growth of sugar beet.

A - Papers appearing in refereed journals

Armstrong, M. J., Milford, G. F. J., Pocock, T. O., Last, P. J. and Day, W. 1986. The dynamics of nitrogen uptake and its remobilization during the growth of sugar beet. The Journal of Agricultural Science. 107 (1), pp. 145-154. https://doi.org/10.1017/S0021859600066892

Sulphur - crop nutrient and fungicide.

G - Articles in popular magazines and other technical publications

McGrath, S. P. and Johnston, A. E. 1986. Sulphur - crop nutrient and fungicide. SPAN. 29, pp. 57-59.

The nitrogen nutrition of sugar beet - an approach to better forecasting of nitrogen fertiliser requirement.

G - Articles in popular magazines and other technical publications

Armstrong, M. J., Squire, A. J. and Milford, G. F. J. 1986. The nitrogen nutrition of sugar beet - an approach to better forecasting of nitrogen fertiliser requirement. British Sugar Beet Review. 54 (1), pp. 84-87.

Soil acidification during more than 100 years under permanent grassland and woodland at Rothamsted

A - Papers appearing in refereed journals

Johnston, A. E., Goulding, K. W. T. and Poulton, P. R. 1986. Soil acidification during more than 100 years under permanent grassland and woodland at Rothamsted. Soil Use and Management. 2 (1), pp. 3-10. https://doi.org/10.1111/j.1475-2743.1986.tb00669.x

Effects of soil and fertilizer P on yields of potatoes, sugar beet, barley and winter wheat on a sandy clay loam soil at Saxmundham, Suffolk

A - Papers appearing in refereed journals

Johnston, A. E., Lane, P. W., Mattingly, G. E. G., Poulton, P. R. and Hewitt, M. V. 1986. Effects of soil and fertilizer P on yields of potatoes, sugar beet, barley and winter wheat on a sandy clay loam soil at Saxmundham, Suffolk. The Journal of Agricultural Science. 106 (1), pp. 155-167. https://doi.org/10.1017/S0021859600061864

Stochastic model of the leaf area expansion of the sugar-beet plant in a field crop.

A - Papers appearing in refereed journals

Chalabi, Z. S., Milford, G. F. J. and Day, W. 1986. Stochastic model of the leaf area expansion of the sugar-beet plant in a field crop. Agricultural and Forest Meteorology. 38 (4), pp. 319-336. https://doi.org/10.1016/0168-1923(86)90020-1

Nitrogen concentrations in field-grown spring barley: an examination of the usefulness of expressing concentrations on the basis of tissue water

A - Papers appearing in refereed journals

Leigh, R. A. and Johnston, A. E. 1985. Nitrogen concentrations in field-grown spring barley: an examination of the usefulness of expressing concentrations on the basis of tissue water. The Journal of Agricultural Science. 105 (2), pp. 397-406. https://doi.org/10.1017/S0021859600056458

Yield and nitrogen-fixation of melilotus-alba

A - Papers appearing in refereed journals

McEwen, J. and Johnston, A. E. 1985. Yield and nitrogen-fixation of melilotus-alba. Field Crops Research. 12 (2), pp. 187-188. https://doi.org/10.1016/0378-4290(85)90065-6

An analysis of leaf growth in sugar-beet .1. Leaf appearance and expansion in relation to temperature under controlled conditions

A - Papers appearing in refereed journals

Milford, G. F. J., Pocock, T. O. and Riley, J. 1985. An analysis of leaf growth in sugar-beet .1. Leaf appearance and expansion in relation to temperature under controlled conditions. Annals of Applied Biology - AAB. 106 (1), pp. 163-172. https://doi.org/10.1111/j.1744-7348.1985.tb03106.x

An analysis of leaf growth in sugar beet. III. Leaf expansion in field crops

A - Papers appearing in refereed journals

Milford, G. F. J., Pocock, T. O., Riley, J. and Messem, A. B. 1985. An analysis of leaf growth in sugar beet. III. Leaf expansion in field crops. Annals of Applied Biology - AAB. 106 (1), pp. 187-203. https://doi.org/10.1111/j.1744-7348.1985.tb03108.x

An analysis of leaf growth in sugar beet. II. Leaf appearance in field crops

A - Papers appearing in refereed journals

Milford, G. F. J., Pocock, T. O. and Riley, J. 1985. An analysis of leaf growth in sugar beet. II. Leaf appearance in field crops. Annals of Applied Biology - AAB. 106 (1), pp. 173-185. https://doi.org/10.1111/j.1744-7348.1985.tb03107.x

An analysis of leaf growth in sugar beet. IV. The expansion of the leaf canopy in relation to temperature and nitrogen

A - Papers appearing in refereed journals

Milford, G. F. J., Pocock, T. O., Jaggard, K. W., Biscoe, P. V., Armstrong, M. J., Last, P. J. and Goodman, P. J. 1985. An analysis of leaf growth in sugar beet. IV. The expansion of the leaf canopy in relation to temperature and nitrogen. Annals of Applied Biology - AAB. 107 (2), pp. 335-347. https://doi.org/10.1111/j.1744-7348.1985.tb01578.x

The nitrogen nutrition of sugar beet - The background to the requirement for sugar yield and amino-N accumulation.

G - Articles in popular magazines and other technical publications

Armstrong, M. J. and Milford, G. F. J. 1985. The nitrogen nutrition of sugar beet - The background to the requirement for sugar yield and amino-N accumulation. British Sugar Beet Review. 53 (4), pp. 42-44.

The effect of straw incorporation on the uptake of nitrogen by winter wheat.

A - Papers appearing in refereed journals

Powlson, D. S., Jenkinson, D. S., Pruden, G. and Johnston, A. E. 1985. The effect of straw incorporation on the uptake of nitrogen by winter wheat. Journal of the Science of Food and Agriculture. 36 (1), pp. 26-30. https://doi.org/10.1002/jsfa.2740360105

Rothamsted Garden Clover - Red clover grown continuously since 1854 Yields, crop and soil analyses 1956-82

A - Papers appearing in refereed journals

McEwen, J., Johnston, A. E., Poulton, P. R. and Yeoman, D. P. 1984. Rothamsted Garden Clover - Red clover grown continuously since 1854 Yields, crop and soil analyses 1956-82. Rothamsted Experimental Station Report. 1983 (part 2), pp. 225-237.

Phytohormone changes during storage root growth in Beta species

A - Papers appearing in refereed journals

Hosford, D. J., Lenton, J. R., Milford, G. F. J., Pocock, T. O. and Elliott, M. C. 1984. Phytohormone changes during storage root growth in Beta species. Plant Growth Regulation. 2, pp. 371-380.

Rothamsted garden clover - red clover grown continuously since 1854

A - Papers appearing in refereed journals

McEwen, J., Johnston, A. E., Poulton, P. R. and Yeoman, D. P. 1983. Rothamsted garden clover - red clover grown continuously since 1854. Rothamsted Experimental Station Report. 2, pp. 225-237.

The Broadbalk wheat experiment 1968-78 : yields and plant nutrients in crops grown continuously and in rotation

A - Papers appearing in refereed journals

Dyke, G. V., George, B. J., Johnston, A. E., Poulton, P. R. and Todd, A. D. 1983. The Broadbalk wheat experiment 1968-78 : yields and plant nutrients in crops grown continuously and in rotation. Rothamsted Experimental Station Report. (2), pp. 5-44. https://doi.org/10.23637/ERADOC-1-34179

Towards a better understanding of critical nutrient concentrations in crops

A - Papers appearing in refereed journals

Leigh, R. A. and Johnston, A. E. 1983. Towards a better understanding of critical nutrient concentrations in crops. Journal of the Science of Food and Agriculture. 34 (3), pp. 265-266. https://doi.org/10.1002/jsfa.2740340310

The effects of fertilizers and drought on the concentrations of potassium in the dry-matter and tissue water of field-grown spring barley

A - Papers appearing in refereed journals

Leigh, R. A. and Johnston, A. E. 1983. The effects of fertilizers and drought on the concentrations of potassium in the dry-matter and tissue water of field-grown spring barley. The Journal of Agricultural Science. 101 (DEC), pp. 741-748. https://doi.org/10.1017/s0021859600038788

Concentrations of potassium in the dry-matter and tissue water of field-grown spring barley and their relationships to grain-yield

A - Papers appearing in refereed journals

Leigh, R. A. and Johnston, A. E. 1983. Concentrations of potassium in the dry-matter and tissue water of field-grown spring barley and their relationships to grain-yield. The Journal of Agricultural Science. 101 (DEC), pp. 675-685. https://doi.org/10.1017/s0021859600038703

Growth of spring barley under drought - crop development, photosynthesis, dry-matter accumulation and nutrient content

A - Papers appearing in refereed journals

Lawlor, D. W., Day, W., Johnston, A. E., Legg, B. J. and Parkinson, K. J. 1981. Growth of spring barley under drought - crop development, photosynthesis, dry-matter accumulation and nutrient content. The Journal of Agricultural Science. 96 (FEB), pp. 167-186. https://doi.org/10.1017/s002185960003197x

Agricultural use of lime

A - Papers appearing in refereed journals

Johnston, A. E. 1981. Agricultural use of lime. Journal of the Science of Food and Agriculture. 32 (10), pp. 991-992.

The use of lime on agricultural soils

A - Papers appearing in refereed journals

Johnston, A. E. and Whinham, W. N. 1980. The use of lime on agricultural soils. Proceedings of the Fertiliser Society. 189, pp. 3-31.

Soils of Rothamsted Farm. The carbon and nitrogen content of the soils and the effect of changes in crop rotation and manuring on soil pH, P, K and Mg

A - Papers appearing in refereed journals

Johnston, A. E., Poulton, P. R. and McEwen, J. 1980. Soils of Rothamsted Farm. The carbon and nitrogen content of the soils and the effect of changes in crop rotation and manuring on soil pH, P, K and Mg. Rothamsted Experimental Station Report. 1980 (part 2), pp. 5-20.

Release of potassium as measured in field experiments

A - Papers appearing in refereed journals

Johnston, A. E. 1980. Release of potassium as measured in field experiments. Journal of the Science of Food and Agriculture. 31 (10), pp. 1078-1078.

Multifactorial experimentation on continuous winter-wheat grown in sandy clay soil at Saxmundham, Suffolk

A - Papers appearing in refereed journals

Widdowson, F. V., Johnston, A. E. and Penny, A. 1980. Multifactorial experimentation on continuous winter-wheat grown in sandy clay soil at Saxmundham, Suffolk. The Journal of Agricultural Science. 94 (FEB), pp. 155-170. https://doi.org/10.1017/s002185960002801x

The effects of temperature on leaf growth of sugar-beet varieties

A - Papers appearing in refereed journals

Milford, G. F. J. and Riley, J. 1980. The effects of temperature on leaf growth of sugar-beet varieties. Annals of Applied Biology - AAB. 94 (3), pp. 431-443. https://doi.org/10.1111/j.1744-7348.1980.tb03959.x

Results from an Experiment on All-grass and Grass-clover Leys at Saxmundham, 1969-76, and Changes in Soil pH, Nitrogen, Phosphorus and Potassium due to Cropping and Manuring

A - Papers appearing in refereed journals

Johnston, A. E., Poulton, P. R. and Williams, R. J. B. 1979. Results from an Experiment on All-grass and Grass-clover Leys at Saxmundham, 1969-76, and Changes in Soil pH, Nitrogen, Phosphorus and Potassium due to Cropping and Manuring. Rothamsted Experimental Station Report. 1978 (2), pp. 99-117.

Yields of and P, K ,Ca, Mg uptakes by crops grown in an experiment testing the effects of adding peat to a sandy loam soil at Woburn 1963-1977

A - Papers appearing in refereed journals

Johnston, A. E. and Brookes, P. C. 1979. Yields of and P, K ,Ca, Mg uptakes by crops grown in an experiment testing the effects of adding peat to a sandy loam soil at Woburn 1963-1977. Rothamsted Experimental Station Report. 2, pp. 83-98.

Uranium accumulation in soils from long-continued applications of superphosphate

A - Papers appearing in refereed journals

Rothbaum, H. P., McGaveston, D. A., Wall, T., Johnston, A. E. and Mattingly, G. E. G. 1979. Uranium accumulation in soils from long-continued applications of superphosphate. Journal of Soil Science. 30 (1), pp. 147-153. https://doi.org/10.1111/j.1365-2389.1979.tb00972.x

Effects of subsoiling and deep incorporation of p-fertilizers and k-fertilizers on the yield and nutrient-uptake of barley, potatoes, wheat and sugar-beet grown in rotation

A - Papers appearing in refereed journals

McEwen, J. and Johnston, A. E. 1979. Effects of subsoiling and deep incorporation of p-fertilizers and k-fertilizers on the yield and nutrient-uptake of barley, potatoes, wheat and sugar-beet grown in rotation. The Journal of Agricultural Science. 92 (JUN), pp. 695-702. https://doi.org/10.1017/s0021859600053946

Effects of different watering methods, soil weights, soil diluents and soil coverings on the yield and nutrient uptake by ryegrass grown in a controlled environment

A - Papers appearing in refereed journals

Brookes, P. C., Gildon, A., Lane, P. W. and Johnston, A. E. 1979. Effects of different watering methods, soil weights, soil diluents and soil coverings on the yield and nutrient uptake by ryegrass grown in a controlled environment. Journal of the Science of Food and Agriculture. 30 (5), pp. 528-531. https://doi.org/10.1002/jsfa.2740300514

Effect of soil improvers on seedling emergence, early growth and final yield

A - Papers appearing in refereed journals

Johnston, A. E. 1979. Effect of soil improvers on seedling emergence, early growth and final yield. Journal of the Science of Food and Agriculture. 30 (3), pp. 338-338.

Developmental parameters regulating sugar yield in beet

A - Papers appearing in refereed journals

Milford, G. F. J. and Lenton, J. R. 1978. Developmental parameters regulating sugar yield in beet. Monographs - British Crop Protection Council (BCPC). 21, pp. 135-142.

Effect of sodium fertilizer on water status and yield of sugar-beet

A - Papers appearing in refereed journals

Durrant, M. J., Draycott, A. P. and Milford, G. F. J. 1978. Effect of sodium fertilizer on water status and yield of sugar-beet. Annals of Applied Biology - AAB. 88 (2), pp. 321-328. https://doi.org/10.1111/j.1744-7348.1978.tb00713.x

Drought experiment using mobile shelters - effect of drought on barley yield, water-use and nutrient-uptake

A - Papers appearing in refereed journals

Day, W., Legg, B. J., French, B. K., Johnston, A. E., Lawlor, D. W. and Jeffers, W. D. C. 1978. Drought experiment using mobile shelters - effect of drought on barley yield, water-use and nutrient-uptake. The Journal of Agricultural Science. 91 (DEC), pp. 599-623. https://doi.org/10.1017/s0021859600059992

Soil organic matter in the Hoosfield continuous barley experiment

A - Papers appearing in refereed journals

Jenkinson, D. S. and Johnston, A. E. 1977. Soil organic matter in the Hoosfield continuous barley experiment. Rothamsted Experimental Station Report. 2, pp. 87-101.

Yields on the Exhaustion Land and changes in NPK content of the soils due to cropping and manuring, 1852-1975

A - Papers appearing in refereed journals

Johnston, A. E. and Poulton, P. R. 1977. Yields on the Exhaustion Land and changes in NPK content of the soils due to cropping and manuring, 1852-1975. Rothamsted Experimental Station Report. 2, pp. 53-85.

Plant-growth regulators and physiological limitations to yield in sugar-beet

A - Papers appearing in refereed journals

Lenton, J. R. and Milford, G. F. J. 1977. Plant-growth regulators and physiological limitations to yield in sugar-beet. Pesticide Science. 8 (3), pp. 224-229. https://doi.org/10.1002/ps.2780080308

Effects of sodium-chloride on water status and growth of sugar-beet

A - Papers appearing in refereed journals

Milford, G. F. J., Cormack, W. F. and Durrant, M. J. 1977. Effects of sodium-chloride on water status and growth of sugar-beet. Journal of Experimental Botany. 28 (107), pp. 1380-1388. https://doi.org/10.1093/jxb/28.6.1380

Effects of photoperiod on some vegetable species

A - Papers appearing in refereed journals

Soffe, R. W., Lenton, J. R. and Milford, G. F. J. 1977. Effects of photoperiod on some vegetable species. Annals of Applied Biology - AAB. 85 (3), pp. 411-&. https://doi.org/10.1111/j.1744-7348.1977.tb01928.x

Effect of phosphate residues on soil phosphorus values and crop yields. I. Experiments on barley, potatoes and sugar beet on sandy loam soils at Woburn England

A - Papers appearing in refereed journals

Johnston, A. E., Mattingly, G. E. G. and Poulton, P. R. 1976. Effect of phosphate residues on soil phosphorus values and crop yields. I. Experiments on barley, potatoes and sugar beet on sandy loam soils at Woburn England. Rothamsted Experimental Station Report. 1975 (2), pp. 5-35. https://doi.org/10.23637/ERADOC-1-10

Additions and removals of nitrogen and phosphorus in long-term experiments at Rothamsted and Woburn and the effect of the residues on total soil nitrogen and phosphorus [wheat, barley, England]

A - Papers appearing in refereed journals

Johnston, A. E. 1976. Additions and removals of nitrogen and phosphorus in long-term experiments at Rothamsted and Woburn and the effect of the residues on total soil nitrogen and phosphorus [wheat, barley, England]. Technical Bulletin Ministry of Agriculture Fisheries and Food. pp. 111-144.

Sugar concentration in sugar-beet - varietal differences and effects of soil type and planting density on size of root-cells

A - Papers appearing in refereed journals

Milford, G. F. J. 1976. Sugar concentration in sugar-beet - varietal differences and effects of soil type and planting density on size of root-cells. Annals of Applied Biology - AAB. 83 (2), pp. 251-257. https://doi.org/10.1111/j.1744-7348.1976.tb00604.x

Some factors affecting crop response to soil-phosphorus

A - Papers appearing in refereed journals

Johnston, A. E. 1976. Some factors affecting crop response to soil-phosphorus. Journal of the Science of Food and Agriculture. 27 (6), pp. 590-590.

Modern developments in an experiment on permanent grassland started in 1856 - effects of fertilizers and lime on botanical composition and crop and soil analyses

A - Papers appearing in refereed journals

Thurston, J. M., Williams, E. D. and Johnston, A. E. 1976. Modern developments in an experiment on permanent grassland started in 1856 - effects of fertilizers and lime on botanical composition and crop and soil analyses. Annales Agronomiques. 27 (5-6), pp. 1043-1082. https://doi.org/10.23637/rothamsted.8vwq8

Long-term rotation experiments at Rothamsted and Saxmundham-Experimental-Stations - effects of treatments on crop yields and soil analyses and recent modifications in purpose and design

A - Papers appearing in refereed journals

Mattingly, G. E. G. and Johnston, A. E. 1976. Long-term rotation experiments at Rothamsted and Saxmundham-Experimental-Stations - effects of treatments on crop yields and soil analyses and recent modifications in purpose and design. Annales Agronomiques. 27 (5-6), pp. 743-769.

Experiments on the continuous growth of arable crops at Rothamsted and Woburn-Experimental-Stations - effects of treatments on crop yields and soil analyses and recent modifications in purpose and design

A - Papers appearing in refereed journals

Johnston, A. E. and Mattingly, G. E. G. 1976. Experiments on the continuous growth of arable crops at Rothamsted and Woburn-Experimental-Stations - effects of treatments on crop yields and soil analyses and recent modifications in purpose and design. Annales Agronomiques. 27 (5-6), pp. 927-956. https://doi.org/10.23637/rothamsted.8vq51

Effects of photoperiod and applied gibberellin on leaf growth in sugar-beet

A - Papers appearing in refereed journals

Lenton, J. R. and Milford, G. F. J. 1976. Effects of photoperiod and applied gibberellin on leaf growth in sugar-beet. Journal of the Science of Food and Agriculture. 27 (8), pp. 796-796.

Effect of photoperiod on growth of sugar-beet

A - Papers appearing in refereed journals

Milford, G. F. J. and Lenton, J. R. 1976. Effect of photoperiod on growth of sugar-beet. Annals of Botany. 40 (170), pp. 1309-1315. https://doi.org/10.1093/oxfordjournals.aob.a085251

Woburn Experimental Farm: a hundred years of agricultural research

A - Papers appearing in refereed journals

Johnston, A. E. 1975. Woburn Experimental Farm: a hundred years of agricultural research. Journal of the Royal Agricultural Society of England. 138, pp. 18-26.

Experiments made on Stackyard Field, Woburn, 1876-1974. I. History of the Field, Details of the Cropping and Manuring and the Yields in the Continuous Wheat and Barley Experiments

A - Papers appearing in refereed journals

Johnston, A. E. 1975. Experiments made on Stackyard Field, Woburn, 1876-1974. I. History of the Field, Details of the Cropping and Manuring and the Yields in the Continuous Wheat and Barley Experiments. Rothamsted Experimental Station Report. 2, pp. 29-44. https://doi.org/10.23637/ERADOC-1-33158

The Woburn Market Garden experiment, 1942-1969. II: The effect of the treatments on soil pH, soil carbon, nitrogen, phosphorus and potassium

A - Papers appearing in refereed journals

Johnston, A. E. 1975. The Woburn Market Garden experiment, 1942-1969. II: The effect of the treatments on soil pH, soil carbon, nitrogen, phosphorus and potassium. Rothamsted Experimental Station Report. 2, pp. 102-132. https://doi.org/10.23637/ERADOC-1-33161

Experiments made on Stackyard Field, Woburn, 1876-1974. II. Effects of treatments on soil pH, P and K in the Continuous Wheat and Barley Experiments

A - Papers appearing in refereed journals

Johnston, A. E. and Chater, M. 1975. Experiments made on Stackyard Field, Woburn, 1876-1974. II. Effects of treatments on soil pH, P and K in the Continuous Wheat and Barley Experiments. Rothamsted Experimental Station Report. 2, pp. 45-60. https://doi.org/10.23637/ERADOC-1-33159

The Woburn Market Garden experiment 1942-1969 I. A history of the experiment, details of the treatments and yields of the crops

A - Papers appearing in refereed journals

Johnston, A. E. and Wedderburn, R. W. M. 1975. The Woburn Market Garden experiment 1942-1969 I. A history of the experiment, details of the treatments and yields of the crops. Rothamsted Experimental Station Report. 2, pp. 79-101. https://doi.org/10.23637/ERADOC-1-33161

Experiments made on Stackyard Field, Woburn, 1876-1974. III. Effects of NPK Fertilisers and Farmyard Manure on Soil Carbon, Nitrogen and Organic Phosphorus

A - Papers appearing in refereed journals

Mattingly, G. E. G., Chater, M. and Johnston, A. E. 1975. Experiments made on Stackyard Field, Woburn, 1876-1974. III. Effects of NPK Fertilisers and Farmyard Manure on Soil Carbon, Nitrogen and Organic Phosphorus. Rothamsted Experimental Station Report. 1974 (2), pp. 61-77. https://doi.org/10.23637/ERADOC-1-33160

Relationship between photosynthesis and concentrations of carbohydrates in leaves of sugar-beet

A - Papers appearing in refereed journals

Milford, G. F. J. and Pearman, I. 1975. Relationship between photosynthesis and concentrations of carbohydrates in leaves of sugar-beet. Photosynthetica. 9 (1), pp. 78-83.

Effects of varying air and soil-moisture on water relations and growth of sugar-beet

A - Papers appearing in refereed journals

Milford, G. F. J. and Lawlor, D. W. 1975. Effects of varying air and soil-moisture on water relations and growth of sugar-beet. Annals of Applied Biology - AAB. 80 (1), pp. 93-102. https://doi.org/10.1111/j.1744-7348.1975.tb01603.x

Effects of mist irrigation on physiology of sugar-beet

A - Papers appearing in refereed journals

Milford, G. F. J. 1975. Effects of mist irrigation on physiology of sugar-beet. Annals of Applied Biology - AAB. 80 (2), pp. 247-250. https://doi.org/10.1111/j.1744-7348.1975.tb01629.x

Control of water and carbon-dioxide flux in water-stressed sugar-beet

A - Papers appearing in refereed journals

Lawlor, D. W. and Milford, G. F. J. 1975. Control of water and carbon-dioxide flux in water-stressed sugar-beet. Journal of Experimental Botany. 26 (94), pp. 657-665. https://doi.org/10.1093/jxb/26.5.657

Potassium in soils under different cropping systems 3. Non-exchangeable potassium in soils from long-term experiments at Rothamsted and Woburn

A - Papers appearing in refereed journals

Addiscott, T. M. and Johnston, A. E. 1975. Potassium in soils under different cropping systems 3. Non-exchangeable potassium in soils from long-term experiments at Rothamsted and Woburn. The Journal of Agricultural Science. 84, pp. 513-524.

The behaviour of K remaining in soils from the Agdell experiment at Rothamsted, the results of intensive cropping in pot experiments and their relation to soil analysis and the results of field experiments

A - Papers appearing in refereed journals

Johnston, A. E. and Mitchell, J. D. D. 1974. The behaviour of K remaining in soils from the Agdell experiment at Rothamsted, the results of intensive cropping in pot experiments and their relation to soil analysis and the results of field experiments. Rothamsted Experimental Station Report. 1973 (2), pp. 74-94.

The effects of ley arable systems of farming on soil potassium reserves - Report from potassium systems of grassland farming

D1 - Technical reports: non-confidential

Johnston, A. E. 1973. The effects of ley arable systems of farming on soil potassium reserves - Report from potassium systems of grassland farming. Lawes Agricultural Trust, (LAT) Harpenden. https://doi.org/10.23637/ERADOC-1-34692

Growth and development of storage root of sugar-beet

A - Papers appearing in refereed journals

Milford, G. F. J. 1973. Growth and development of storage root of sugar-beet. Annals of Applied Biology - AAB. 75 (3), pp. 427-&. https://doi.org/10.1111/j.1744-7348.1973.tb07991.x

Effect of sodium on growth of water-stressed sugar-beet

A - Papers appearing in refereed journals

Lawlor, D. W. and Milford, G. F. J. 1973. Effect of sodium on growth of water-stressed sugar-beet. Annals of Botany. 37 (151), pp. 597-604. https://doi.org/10.1093/oxfordjournals.aob.a084725

Effect of light and temperature late in season on growth of sugar-beet

A - Papers appearing in refereed journals

Milford, G. F. J. and Thorne, G. N. 1973. Effect of light and temperature late in season on growth of sugar-beet. Annals of Applied Biology - AAB. 75 (3), pp. 419-425. https://doi.org/10.1111/j.1744-7348.1973.tb07990.x

Effects of shading and of seasonal differences in weather on the growth, sugar content and sugar yield of sugar‐beet crops

A - Papers appearing in refereed journals

Watson, D. J., Motomatsu, T., Loach, K. and Milford, G. F. J. 1972. Effects of shading and of seasonal differences in weather on the growth, sugar content and sugar yield of sugar‐beet crops. Annals of Applied Biology - AAB. 71 (2), pp. 159-185. https://doi.org/10.1111/j.1744-7348.1972.tb02950.x

Changes in soil properties caused by the new liming scheme on Park Grass

A - Papers appearing in refereed journals

Johnston, A. E. 1972. Changes in soil properties caused by the new liming scheme on Park Grass. Rothamsted Experimental Station Report. 1971 (2), pp. 177-180.

The effects of ley and arable cropping systems on the amounts of soil organic matter in the Rothamsted and Woburn ley-arable experiment

A - Papers appearing in refereed journals

Johnston, A. E. 1972. The effects of ley and arable cropping systems on the amounts of soil organic matter in the Rothamsted and Woburn ley-arable experiment. Rothamsted Experimental Station Report. 1972 (2), pp. 131-159.

The effects of ley arable systems of farming on soil potassium reserves

A - Papers appearing in refereed journals

Johnston, A. E. 1971. The effects of ley arable systems of farming on soil potassium reserves . Report from potassium systems of grassland farming. pp. 1-5.

The effect of nitrogen on the growth and sugar content of sugar-beet

A - Papers appearing in refereed journals

Milford, G. F. J. and Watson, D. J. 1971. The effect of nitrogen on the growth and sugar content of sugar-beet. Annals of Botany. 35 (2), pp. 287-300. https://doi.org/10.1093/oxfordjournals.aob.a084478

Potassium residues in soils from experiments at Rothamsted and Woburn

A - Papers appearing in refereed journals

Johnston, A. E. 1971. Potassium residues in soils from experiments at Rothamsted and Woburn. Technical Bulletin Ministry of Agriculture Fisheries and Food. 20, pp. 220-236.

The Agdell experiment - Estimates of the P and K accumulated from fertiliser dressings given between 1848-1951 their recovery by grass between 1958 and 1970 and their effect on the response by grass to new dressings of P and K

A - Papers appearing in refereed journals

Johnston, A. E. and Penny, A. 1971. The Agdell experiment - Estimates of the P and K accumulated from fertiliser dressings given between 1848-1951 their recovery by grass between 1958 and 1970 and their effect on the response by grass to new dressings of P and K. Rothamsted Experimental Station Report. 1970 (2), pp. 38-68.

Potassium in soils under different cropping systems 1. Behaviour of K remaining in soils from classical and rotation experiments at Rothamsted and Woburn and evaluation of methods of measuring soil potassium

A - Papers appearing in refereed journals

Johnston, A. E. and Addiscott, T. M. 1971. Potassium in soils under different cropping systems 1. Behaviour of K remaining in soils from classical and rotation experiments at Rothamsted and Woburn and evaluation of methods of measuring soil potassium. The Journal of Agricultural Science. 76 (3), pp. 539-552. https://doi.org/10.1017/S0021859600069549

Potassium in soils under different cropping systems. 2. The effects of cropping systems on the retention by the soils of added K not used by crops

A - Papers appearing in refereed journals

Addiscott, T. M. and Johnston, A. E. 1971. Potassium in soils under different cropping systems. 2. The effects of cropping systems on the retention by the soils of added K not used by crops. The Journal of Agricultural Science. 76, pp. 553-561.

The value of residues from long-period manuring at Rothamsted and Woburn I Introduction

A - Papers appearing in refereed journals

Johnston, A. E. 1970. The value of residues from long-period manuring at Rothamsted and Woburn I Introduction. Rothamsted Experimental Station Report. 1969 (Part 2), pp. 5-6. https://doi.org/10.23637/ERADOC-1-34860

The value of residues from long-period manuring at Rothamsted and Woburn II A summary of the results of experiments started by Lawes and Gilbert

A - Papers appearing in refereed journals

Johnston, A. E. 1970. The value of residues from long-period manuring at Rothamsted and Woburn II A summary of the results of experiments started by Lawes and Gilbert. Rothamsted Experimental Station Report. 1969 (Part 2), pp. 7-21. https://doi.org/10.23637/ERADOC-1-34861

The value of residues from long-period manuring at Rothamsted and Woburn III The experiments made from 1957 to 1962, the soils and histories of the sites on which they were made

A - Papers appearing in refereed journals

Johnston, A. E. and Warren, R. G. 1970. The value of residues from long-period manuring at Rothamsted and Woburn III The experiments made from 1957 to 1962, the soils and histories of the sites on which they were made. Rothamsted Experimental Station Report. 1969 (Part 2), pp. 22-38. https://doi.org/10.23637/ERADOC-1-34862

The value of residues from long-period manuring at Rothamsted and Woburn IV The value to arable crops of residues accumulated from superphosphate

A - Papers appearing in refereed journals

Johnston, A. E., Warren, R. G. and Penny, A. 1970. The value of residues from long-period manuring at Rothamsted and Woburn IV The value to arable crops of residues accumulated from superphosphate. Rothamsted Experimental Station Report. 1969 (Part 2), pp. 39-68. https://doi.org/10.23637/ERADOC-1-34863

The value of residues from long-period manuring at Rothamsted and Woburn V The value to arable crops of residues accumulated from potassium fertilizers

A - Papers appearing in refereed journals

Johnston, A. E., Warren, R. G. and Penny, A. 1970. The value of residues from long-period manuring at Rothamsted and Woburn V The value to arable crops of residues accumulated from potassium fertilizers. Rothamsted Experimental Station Report. 1969 (Part 2), pp. 69-90. https://doi.org/10.23637/ERADOC-1-34864

The residual value of farmyard manure and superphosphate in the Saxmundham Rotation II Experiment, 1899-1968

A - Papers appearing in refereed journals

Mattingly, G. E. G., Johnston, A. E. and Margaret Chater 1970. The residual value of farmyard manure and superphosphate in the Saxmundham Rotation II Experiment, 1899-1968. Rothamsted Experimental Station Report. 1969 (Part 2), pp. 91-112. https://doi.org/10.23637/ERADOC-1-4

The plant nutrients in crops grown on Broadbalk

A - Papers appearing in refereed journals

Johnston, A. E. 1969. The plant nutrients in crops grown on Broadbalk. Rothamsted Experimental Station Report. 2, pp. 93-115. https://doi.org/10,23637/ERADOC-1-34923

The soils of Broadbalk : Plant nutrients in Broadbalk soils

A - Papers appearing in refereed journals

Johnston, A. E. 1969. The soils of Broadbalk : Plant nutrients in Broadbalk soils. Rothamsted Experimental Station Report. 2, pp. 93-115.

Broadbalk: Historical Introduction

A - Papers appearing in refereed journals

Johnston, A. E. and Garner, H. V. 1968. Broadbalk: Historical Introduction. Rothamsted Experimental Station Report. 2, pp. 12-25.

Hoosfield Continuous Barley

A - Papers appearing in refereed journals

Warren, R. G. and Johnston, A. E. 1967. Hoosfield Continuous Barley. Rothamsted Experimental Station Report. 1966, pp. 320-338.

Changes in the Park Grass experiment

A - Papers appearing in refereed journals

Warren, R. G., Johnston, A. E. and Cooke, G. W. 1965. Changes in the Park Grass experiment. Rothamsted Experimental Station Report. 1964, pp. 224-228.

Notes on the use of soil analysis for estimating available P in Rothamsted soils

A - Papers appearing in refereed journals

Warren, R. G. and Johnston, A. E. 1965. Notes on the use of soil analysis for estimating available P in Rothamsted soils. Technical Bulletin Ministry of Agriculture Fisheries and Food. 13, pp. 30-37.

The Park Grass Experiment

A - Papers appearing in refereed journals

Warren, R. G. and Johnston, A. E. 1964. The Park Grass Experiment. Rothamsted Experimental Station Report. 1963, pp. 240-262.

Barnfield

A - Papers appearing in refereed journals

Warren, R. G. and Johnston, A. E. 1962. Barnfield. Rothamsted Experimental Station Report. 1961, pp. 227-247. https://doi.org/10.23637/ERADOC-1-37013

The accumulation and loss of soil potassium in long-term experiments, Rothamsted and Woburn

A - Papers appearing in refereed journals

Warren, R. G., Johnston, A. E. and Arnold, P. W. 1962. The accumulation and loss of soil potassium in long-term experiments, Rothamsted and Woburn. Proceedings of the Fertiliser Society. 72, pp. 5-24.

The Exhaustion Land site

A - Papers appearing in refereed journals

Warren, R. G. and Johnston, A. E. 1960. The Exhaustion Land site. Rothamsted Experimental Station Report. 1959, pp. 230-239.