Changes in the Park Grass experiment

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.

Related outputs

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.

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.

Potassium and nitrogen interactions in crop production

A - Papers appearing in refereed journals

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

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.

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.

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

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

G - Articles in popular magazines and other technical publications

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, pp. 1989-1995.

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, pp. 1974-1981.

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, pp. 1599-1620.

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, pp. 80-87.

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, pp. 206-207.

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.

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.

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

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

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

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.

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

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, pp. 2511-2518.

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

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

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

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

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, 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

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, pp. 414-419.

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

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

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

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 - jsfa. 63 (1), pp. 97-102. https://doi.org/10.1002/jsfa.2740630117

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

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

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

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

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 .

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

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, pp. 1299-1307.

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

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

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

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 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.

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. T. 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.

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.

C1 - Edited contributions to conferences/learned societies

Johnston, A. E. and Jenkinson, D. S. 1989. The nitrogen cycle in UK arable agriculture.

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

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

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

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: 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, 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, 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..

The intercontinental transfer of plant nutrients.

C1 - Edited contributions to conferences/learned societies

Cooke, G. W. 1988. The intercontinental transfer of plant nutrients. Nutrient balances and the need for potassium. Proceedings 13th IPI Congress, Rheims, 1986. Worblaufen-Bern : IPI. pp. 267-287

Nutrient balances and the need for potassium in humid tropical regions.

C1 - Edited contributions to conferences/learned societies

Cooke, G. W. 1988. Nutrient balances and the need for potassium in humid tropical regions. Nutrient balances and the need for potassium. Proceedings 13th IPI Congress, Rheims, 1986. Worblaufen-Bern : IPI. pp. 17-35

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 - jsfa. 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.

Modern Agriculture : the role of science and technology.

G - Articles in popular magazines and other technical publications

Cooke, G. W. 1988. Modern Agriculture : the role of science and technology. Kidma : Journal of Development. 10, pp. 9-13.

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

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.

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

C1 - Edited contributions to conferences/learned societies

Johnston, A. E. 1987. Effects of soil organic matter on yields of crops in long-term experiments at Rothamsted and Woburn.

Yield limiting factors and their correlation in the systems of agriculture.

A - Papers appearing in refereed journals

Cooke, G. W. 1987. Yield limiting factors and their correlation in the systems of agriculture. Vestnik Sel'skokhozyaistvennoi Nauki (Moscow, USSR). 2, pp. 123-130.

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 role and importance of potassium in the agricultural systems of the humid tropics: the way forward.

G - Articles in popular magazines and other technical publications

Cooke, G. W. 1987. The role and importance of potassium in the agricultural systems of the humid tropics: the way forward.

Yield limiting factors and their correlation in the systems of agriculture.

G - Articles in popular magazines and other technical publications

Cooke, G. W. 1987. Yield limiting factors and their correlation in the systems of agriculture. Vestnik Sel'skohozajstvennoj Nauki/VASHNIL. No.2, pp. 124-130.

Maximising fertiliser efficiency by overcoming constraints to crop growth.

A - Papers appearing in refereed journals

Cooke, G. W. 1987. Maximising fertiliser efficiency by overcoming constraints to crop growth. Journal of Plant Nutrition. 10, pp. 1357-1369.

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 - jsfa. 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, pp. 75-89.

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.

Potassium in the agricultural systems of the humid tropics. An introduction to the Colloquium.

G - Articles in popular magazines and other technical publications

Cooke, G. W. 1987. Potassium in the agricultural systems of the humid tropics. An introduction to the Colloquium.

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 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 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 - jsfa. 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. 1986. Modelling the long-term residual effects of phosphorus residues in soil. Journal of the Science of Food and Agriculture - jsfa. 37 (1), p. 8.

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

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.

Phosphorus and potassium problems in plant production, and how to solve them.

G - Articles in popular magazines and other technical publications

Cooke, G. W. 1986. Phosphorus and potassium problems in plant production, and how to solve them.

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

Nitrates in surface and underground waters.

G - Articles in popular magazines and other technical publications

Cooke, G. W. 1986. Nitrates in surface and underground waters. SPAN. 29, pp. 10-11.

The interaction between the supplies of water and of nutrients available to crops: implications for practical progress and for scientific work.

A - Papers appearing in refereed journals

Cooke, G. W. 1986. The interaction between the supplies of water and of nutrients available to crops: implications for practical progress and for scientific work. Philosophical Transactions of the Royal Society A-Mathematical Physical and Engineering Sciences. 316 (1537), pp. 331-346. https://doi.org/10.1098/rsta.1986.0012

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

Pesquisas dos fatores que limitam os rendimentos e sua importancia no desenvolvimento de sistemas agricolas.

G - Articles in popular magazines and other technical publications

Cooke, G. W. 1985. Pesquisas dos fatores que limitam os rendimentos e sua importancia no desenvolvimento de sistemas agricolas.

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 - jsfa. 36 (1), pp. 26-30. https://doi.org/10.1002/jsfa.2740360105

Introduction The nitrogen requirement of cereals : proceedings of a conference organised by ADAS September 1982

B - Book chapters etc edited externally

Cooke, G. W. 1984. Introduction The nitrogen requirement of cereals : proceedings of a conference organised by ADAS September 1982. in: In : The nitrogen requirement of cereals : proceedings of a conference organised by ADAS September 1982 London H.M.S.O.. pp. 1-4

The application of soil science to increasing soil productivity

B - Book chapters etc edited externally

Cooke, G. W. 1984. The application of soil science to increasing soil productivity. in: Tinsley, J. and Darbyshire, J. F. (ed.) Biologial processes and soil fertility Netherlands W. Junk.

The application of soil science to increasing soil productivity

A - Papers appearing in refereed journals

Cooke, G. W. 1984. The application of soil science to increasing soil productivity. Conference of Commissions III (Soil Biology) and IV (Soil fertility and plant nutrition) of the ISSS.

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

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. Rothamsted Experimental Station Report. 2, pp. 225-237.

Constraints on crop production - opportunities for chemical-industry

A - Papers appearing in refereed journals

Cooke, G. W. 1984. Constraints on crop production - opportunities for chemical-industry. Chemistry & Industry. (20), pp. 730-737.

A mutragya-felhasznalas es -hatekonysag, valamint a talajtermekenyseg kutatasanak fejlodese.

G - Articles in popular magazines and other technical publications

Cooke, G. W. 1984. A mutragya-felhasznalas es -hatekonysag, valamint a talajtermekenyseg kutatasanak fejlodese. Agrokemia es talajtan. 33, pp. 518-538.

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 - jsfa. 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

Seventh Boyd Orr memorial lecture. Managing the mineral cycle

A - Papers appearing in refereed journals

Cooke, G. W. 1981. Seventh Boyd Orr memorial lecture. Managing the mineral cycle. Proceedings of the Nutrition Society. 40, p. 295. https://doi.org/10.1079/pns19810046

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 - jsfa. 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. 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 - jsfa. 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

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.

Chemistry Department Rothamsted 1968

A - Papers appearing in refereed journals

Cooke, G. W. 1979. Chemistry Department Rothamsted 1968. Rothamsted Experimental Station Report. 1968 (Part 1), pp. 38-62. https://doi.org/10.23637/ERADOC-1-123

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.

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. 2, pp. 99-117.

Uranium accumulation in soils from long-continued applications of super-phosphate

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 super-phosphate. 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 - jsfa. 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 - jsfa. 30 (3), pp. 338-338.

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.

Review of the effects of agriculture on the chemical composition and quality of surface and underground waters

A - Papers appearing in refereed journals

Cooke, G. W. 1976. Review of the effects of agriculture on the chemical composition and quality of surface and underground waters. MAFF Technical Bulletin. 32, pp. 5-57.

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.

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 - jsfa. 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.

Long-term fertilizer experiments in England - significance of their results for agricultural science and for practical farming

A - Papers appearing in refereed journals

Cooke, G. W. 1976. Long-term fertilizer experiments in England - significance of their results for agricultural science and for practical farming. Annales Agronomiques. 27 (5-6), pp. 503-536.

Experiments on 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 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

Sources of protein for people and livestock; the amounts now available and future prospects

A - Papers appearing in refereed journals

Cooke, G. W. 1975. Sources of protein for people and livestock; the amounts now available and future prospects. Fertilizer Use and Protein Production. 2385 (38.7), p. 29.

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

Energy costs of nitrogen fertilizers used in Britain, returns received, and some savings possible

A - Papers appearing in refereed journals

Cooke, G. W. 1975. Energy costs of nitrogen fertilizers used in Britain, returns received, and some savings possible. Journal of the Science of Food and Agriculture - jsfa. 26 (3), pp. 371-372.

Energy costs of nitrogen fertilizers used in Britain, returns received and some savings that are possible

A - Papers appearing in refereed journals

Cooke, G. W. 1975. Energy costs of nitrogen fertilizers used in Britain, returns received and some savings that are possible. Journal of the Science of Food and Agriculture - jsfa. 26 (8), pp. 1065-1069. https://doi.org/10.1002/jsfa.2740260803

Crop nutrition and soil fertility

A - Papers appearing in refereed journals

Cooke, G. W. 1975. Crop nutrition and soil fertility. Nutrition Reports International. 11 (1), pp. 86-87.

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.

Results of the IPI colloquia at Uppsala Landshut and Abidjan and an introduction to the congress

A - Papers appearing in refereed journals

Cooke, G. W. 1974. Results of the IPI colloquia at Uppsala Landshut and Abidjan and an introduction to the congress. Proceedings Colloquium International Potash Institute . 10.

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. 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. 2, pp. 74-94.

The possibilities of polluting soil by fertilizers and the way they are used

A - Papers appearing in refereed journals

Cooke, G. W. 1973. The possibilities of polluting soil by fertilizers and the way they are used. Fertilisation et pollution des sols. pp. 561-583.

The present and future use of fertilisers on grassland

A - Papers appearing in refereed journals

Cooke, G. W. 1973. The present and future use of fertilisers on grassland. The George Scott Robertson Memorial Lecture.

It pays to treat pastures well

A - Papers appearing in refereed journals

Cooke, G. W. 1973. It pays to treat pastures well. Dairy Farmer.

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

Soils and fertilizers

A - Papers appearing in refereed journals

Cooke, G. W. 1973. Soils and fertilizers. Journal of the Royal Agricultural Society of England. 134, pp. 101-113.

Significance of man-made sources of phosphorus - fertilizers and farming - phosphorus involved in agricultural systems and possibilities of its movement into natural water

A - Papers appearing in refereed journals

Cooke, G. W. and Williams, R. J. B. 1973. Significance of man-made sources of phosphorus - fertilizers and farming - phosphorus involved in agricultural systems and possibilities of its movement into natural water. Water Research. 7 (1-2), pp. 19-33. https://doi.org/10.1016/0043-1354(73)90150-4

Experiments on herbage crops at Saxmundham, 1967-71

A - Papers appearing in refereed journals

Williams, R. J. B. and Cooke, G. W. 1972. Experiments on herbage crops at Saxmundham, 1967-71. Rothamsted Experimental Station Report. 1971 (2), pp. 95-121.

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. 2, pp. 177-180.

The Agdell experiment

A - Papers appearing in refereed journals

Johnston, A. E. and Penny, A. 1972. The Agdell experiment. Rothamsted Experimental Station Report. 2, pp. 38-68.

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. 2, pp. 131-159.

Frederick Charles Bawden a review of Rothamsted during his Directorship 1958-1972

A - Papers appearing in refereed journals

Cooke, G. W. 1971. Frederick Charles Bawden a review of Rothamsted during his Directorship 1958-1972. Rothamsted Experimental Station Report. 1971 (1), pp. 25-46.

Results of the rotation I Experiment at Saxmundham Experimental Station 1964-69

A - Papers appearing in refereed journals

Williams, R. J. B. and Cooke, G. W. 1971. Results of the rotation I Experiment at Saxmundham Experimental Station 1964-69. Rothamsted Experimental Station Report. (Part 2), pp. 68-97. https://doi.org/10.23637/ERADOC-1-34801

Chemistry Department Rothamsted 1970

A - Papers appearing in refereed journals

Cooke, G. W. 1971. Chemistry Department Rothamsted 1970. Rothamsted Experimental Station Report. (Part 1), pp. 36-63. https://doi.org/10.23637/ERADOC-1-125

Potassium for grassland : present use and future possibilities

A - Papers appearing in refereed journals

Cooke, G. W. 1971. Potassium for grassland : present use and future possibilities. Colloquium of the Potassium Institute. 1.

Value and valuation of fertilizer residues

A - Papers appearing in refereed journals

Cooke, G. W. 1971. Value and valuation of fertilizer residues. MAFF Technical Bulletin. 20, pp. 296-317.

Fertilisers amd society - Seventh Francis new memorial lecture

A - Papers appearing in refereed journals

Cooke, G. W. 1971. Fertilisers amd society - Seventh Francis new memorial lecture. Proceedings - Fertiliser Society, London. 121, pp. 1-48.

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.

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.

Chemistry Department Rothamsted 1969

A - Papers appearing in refereed journals

Cooke, G. W. 1970. Chemistry Department Rothamsted 1969. Rothamsted Experimental Station Report. 1969, pp. 41-71. https://doi.org/10.23637/ERADOC-1-124

The carrying capacity of the land in the year 2000

A - Papers appearing in refereed journals

Cooke, G. W. 1970. The carrying capacity of the land in the year 2000. Institute of Biology Symposium. 19.

Soils and fertilisers

A - Papers appearing in refereed journals

Cooke, G. W. 1970. Soils and fertilisers. Journal of the Royal Agricultural Society of England. 131, pp. 107-128.

Soil fertility problems in cereal growing in temperate zones

A - Papers appearing in refereed journals

Cooke, G. W. 1970. Soil fertility problems in cereal growing in temperate zones. Proceedings Congress of the International Potash Institute. 9, pp. 123-133.

Losses of nitrogen and phosphorus from agricultural land

A - Papers appearing in refereed journals

Cooke, G. W. and Williams, R. J. B. 1970. Losses of nitrogen and phosphorus from agricultural land. Water treatment and examination. 19, pp. 253-276.

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 Chater, M. 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

Fertilizers in 2000 AD Phosphorus in agriculture

A - Papers appearing in refereed journals

Cooke, G. W. 1969. Fertilizers in 2000 AD Phosphorus in agriculture. Phosphorus in agriculture Bulletin Document. 53, pp. 1-13.

Plant nutrient cycles

A - Papers appearing in refereed journals

Cooke, G. W. 1969. Plant nutrient cycles. Proceedings International Potash Institute. 7, pp. 75-95.

Using chemicals to increase soil productivity

A - Papers appearing in refereed journals

Cooke, G. W. 1969. Using chemicals to increase soil productivity. Chemistry & Industry. 26, pp. 854-&.

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.

The Saxmundham Experiments

A - Papers appearing in refereed journals

Cooke, G. W. 1968. The Saxmundham Experiments. Rothamsted Experimental Station Report. 1967, pp. 235-248. https://doi.org/10.23637/ERADOC-1-120

Chemistry Department Rothamsted 1967

A - Papers appearing in refereed journals

Cooke, G. W. 1968. Chemistry Department Rothamsted 1967. Rothamsted Experimental Station Report. 1967, pp. 37-64. https://doi.org/10.23637/ERADOC-1-120

Soils and fertilizers

A - Papers appearing in refereed journals

Cooke, G. W. 1968. Soils and fertilizers. Journal of the Royal Agricultural Society of England. 129, pp. 128-148.

Soil fertility problems in cereal growing

A - Papers appearing in refereed journals

Cooke, G. W. 1968. Soil fertility problems in cereal growing. Ceres. 2, pp. 3-6.

How serious is soil compaction?

A - Papers appearing in refereed journals

Cooke, G. W. 1968. How serious is soil compaction? Arable Farmer. January.

Future trends in the use of fertilisers

A - Papers appearing in refereed journals

Cooke, G. W. 1968. Future trends in the use of fertilisers. Proceedings Fertiliser Association of Ireland. 1, pp. 1-25.

The forms and amounts of fertilizers used in the UK and possible changes that may affect methods of applications

A - Papers appearing in refereed journals

Cooke, G. W. 1968. The forms and amounts of fertilizers used in the UK and possible changes that may affect methods of applications. Meeting Institute of Agricultural Engineers, Cambridge. Spring (March).

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.

The availability of plant nutrients in soils and their uptake by crops

A - Papers appearing in refereed journals

Cooke, G. W. 1967. The availability of plant nutrients in soils and their uptake by crops. Report East Malling Research Station. 1966, pp. 48-69.

Advice on using fertilizers 1861-1967

A - Papers appearing in refereed journals

Cooke, G. W. 1967. Advice on using fertilizers 1861-1967. Journal of the Royal Agricultural Society of England. 128, pp. 107-124.

Value and valuation of fertilizer residues

A - Papers appearing in refereed journals

Cooke, G. W. 1967. Value and valuation of fertilizer residues. Journal of the Royal Agricultural Society of England. 128, pp. 7-25.

Hoosfield Continuous Barley

A - Papers appearing in refereed journals

Warren, R. G. and Johnston, A. E. 1967. Hoosfield Continuous Barley. Rothamsted Experimental Station Report.

The chemical control of soil fertility

A - Papers appearing in refereed journals

Cooke, G. W. 1966. The chemical control of soil fertility. Soil Science and Agrochemistry . 1 (3).

Fit the fertilizer to the crop

A - Papers appearing in refereed journals

Cooke, G. W. 1966. Fit the fertilizer to the crop. Farmer & Stockbreeder. April, pp. 47-54.

The relationship of classification of soils with their properties and fertility

A - Papers appearing in refereed journals

Cooke, G. W. 1966. The relationship of classification of soils with their properties and fertility. Soil Science and Agrochemistry. 1 (2).

The responses of crops to phosphate fertilizers in relation to soluble phosphorus in soils

A - Papers appearing in refereed journals

Cooke, G. W. 1966. The responses of crops to phosphate fertilizers in relation to soluble phosphorus in soils. MAFF Technical Bulletin. 13, pp. 1-64.

Soil fertility in intensive agriculture

A - Papers appearing in refereed journals

Cooke, G. W. 1966. Soil fertility in intensive agriculture. SPAN. 9 (1).

Soils and fertilizers

A - Papers appearing in refereed journals

Cooke, G. W. 1966. Soils and fertilizers. Journal of the Royal Agricultural Society of England. 127, pp. 128-145.

Taking the brake off cereal yields

A - Papers appearing in refereed journals

Cooke, G. W. 1966. Taking the brake off cereal yields. Arable Farmer. November.

The basis for modern manuring. Devon County Agricultural Association lecture

A - Papers appearing in refereed journals

Cooke, G. W. 1966. The basis for modern manuring. Devon County Agricultural Association lecture. Seale Hayne Agricultural College. pp. 1-27.

Phosphorus and potassium fertilisers : their forms and their places in agriculture

A - Papers appearing in refereed journals

Cooke, G. W. 1966. Phosphorus and potassium fertilisers : their forms and their places in agriculture. Proceedings - Fertiliser Society, London. 92, pp. 1-45.

Soils and fertilizers

A - Papers appearing in refereed journals

Cooke, G. W. 1965. Soils and fertilizers. Journal of the Royal Agricultural Society of England. 126, pp. 154-174.

Principles of manuring

A - Papers appearing in refereed journals

Cooke, G. W. 1965. Principles of manuring. ICAM Journal. Spring.

Using nitrogen to regulate growth

A - Papers appearing in refereed journals

Cooke, G. W. 1965. Using nitrogen to regulate growth. Dairy Farmer. 12 (2).

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.

Soils and fertilizers

A - Papers appearing in refereed journals

Cooke, G. W. 1964. Soils and fertilizers. Journal of the Royal Agricultural Society of England. 125.

What about liquids - liquid fertilisers for grassland

A - Papers appearing in refereed journals

Cooke, G. W. 1964. What about liquids - liquid fertilisers for grassland. Dairy Farmer. Supplement (March).

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.

General principles governing the potassium manuring of grassland

A - Papers appearing in refereed journals

Cooke, G. W. 1963. General principles governing the potassium manuring of grassland. Regional conference of the Internatinal Potash Institute. 1.

Results of an experiment at Rothamsted testing farmyard manure and N, P and K fertilizers on five arable crops I. Yields

A - Papers appearing in refereed journals

Widdowson, F. V., Penny, A. and Cooke, G. W. 1963. Results of an experiment at Rothamsted testing farmyard manure and N, P and K fertilizers on five arable crops I. Yields. The Journal of Agricultural Science. 60 (3), pp. 347-352. https://doi.org/10.1017/S002185960001193X

Results of an experiment at Rothamsted testing farmyard manure and N, P and K fertilizers on five arable crops II. Nutrients removed by crops

A - Papers appearing in refereed journals

Williams, R. J. B., Cooke, G. W. and Widdowson, F. V. 1963. Results of an experiment at Rothamsted testing farmyard manure and N, P and K fertilizers on five arable crops II. Nutrients removed by crops. The Journal of Agricultural Science. 60 (3), pp. 353-357. https://doi.org/10.1017/S0021859600011941

Timing and placement of fertilisers

A - Papers appearing in refereed journals

Cooke, G. W. 1962. Timing and placement of fertilisers. World crops.

Soil potassium

A - Papers appearing in refereed journals

Cooke, G. W. 1962. Soil potassium. Journal of the Royal Agricultural Society of England.

Saving by soil testing - preparing for spring-soil cereals and mixtures for undersowing

A - Papers appearing in refereed journals

Cooke, G. W. 1962. Saving by soil testing - preparing for spring-soil cereals and mixtures for undersowing. Farming Express.

Nitrogen the key to grass production

A - Papers appearing in refereed journals

Cooke, G. W. 1962. Nitrogen the key to grass production. Dairy Farmer.

Liquid fertilisers

A - Papers appearing in refereed journals

Cooke, G. W. 1962. Liquid fertilisers. ICAM Journal - Journal of the Institue of Corn Agricultural Merchants. 10, pp. 19-21.

Fruits of research in fertiliser use

A - Papers appearing in refereed journals

Cooke, G. W. 1962. Fruits of research in fertiliser use . SPAN.

Chemical Aspects of Soil fertility

A - Papers appearing in refereed journals

Cooke, G. W. 1962. Chemical Aspects of Soil fertility. Soils and fertilizers. 25.

Assessing the capabilities of soils for producing crops

A - Papers appearing in refereed journals

Cooke, G. W. 1962. Assessing the capabilities of soils for producing crops. International Soil Conference New Zealand.

Measuring soluble phosphorus in soils, comparisons of methods, and interpretation of results

A - Papers appearing in refereed journals

Williams, R. J. B. and Cooke, G. W. 1962. Measuring soluble phosphorus in soils, comparisons of methods, and interpretation of results. The Journal of Agricultural Science. 59 (2), pp. 275-280. https://doi.org/10.1017/S0021859600015318

Comparisons between methods of measuring soluble phosphorus and potassium in soils used for fertilizer experiments on sugar beet

A - Papers appearing in refereed journals

Warren, R. G. and Cooke, G. W. 1962. Comparisons between methods of measuring soluble phosphorus and potassium in soils used for fertilizer experiments on sugar beet. The Journal of Agricultural Science. 59 (2), pp. 269-274. https://doi.org/10.1017/S0021859600015306

The Rothamsted Ley-arable Rotation Experiment

A - Papers appearing in refereed journals

Boyd, D. A., Cooke, G. W., Dyke, G. V., Moffatt, J. R. and Warren, R. G. 1962. The Rothamsted Ley-arable Rotation Experiment. Rothamsted Experimental Station Report. 1961, pp. 173-180. https://doi.org/10.23637/ERADOC-1-94

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 use of nitrogen fertilizers in Britain and their effects on the yield and composition of crops

A - Papers appearing in refereed journals

Cooke, G. W. 1961. The use of nitrogen fertilizers in Britain and their effects on the yield and composition of crops. Agrochimica.

Soils and fertilizers : Trace elements : Cobalt an essential nutrient for some legumes

A - Papers appearing in refereed journals

Cooke, G. W. 1961. Soils and fertilizers : Trace elements : Cobalt an essential nutrient for some legumes. Journal of the Royal Agricultural Society of England.

Some effects of farmyard manure and of grass residues on soil structure

A - Papers appearing in refereed journals

Williams, R. J. B. and Cooke, G. W. 1961. Some effects of farmyard manure and of grass residues on soil structure. Soil Science. 92 (1), pp. 30-39.

Barnfield

A - Papers appearing in refereed journals

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

The use of fertilisers on grassland

A - Papers appearing in refereed journals

Cooke, G. W. 1960. The use of fertilisers on grassland . Monograph - Society of Chemical Industry. 9, pp. 1-5.

Soils and fertilizers

A - Papers appearing in refereed journals

Cooke, G. W. 1960. Soils and fertilizers. Journal of the Royal Agricultural Society of England.

The right place for fertilizers

A - Papers appearing in refereed journals

Cooke, G. W. 1960. The right place for fertilizers. Practical power farming.

Optimum fertilizer dressings for agricultural crops

A - Papers appearing in refereed journals

Cooke, G. W. 1960. Optimum fertilizer dressings for agricultural crops. Journal of the Royal Agricultural Society of England.

Field experiments on phosphate fertilizers

A - Papers appearing in refereed journals

Cooke, G. W. 1960. Field experiments on phosphate fertilizers. NAAS Quarterly Review.

Nitrogen fertilisers their forms and place in agriculture

A - Papers appearing in refereed journals

Cooke, G. W. 1960. Nitrogen fertilisers their forms and place in agriculture. Proceedings - Fertiliser Society, London. 80.

Prediction of nitrogen requirements of arable crops on mainly arable cropping systems

A - Papers appearing in refereed journals

Cooke, G. W. 1960. Prediction of nitrogen requirements of arable crops on mainly arable cropping systems. MAFF Technical bulletin. 15.

The value of calcium nitrate and urea for main-crop potatoes and kale

A - Papers appearing in refereed journals

Widdowson, F. V., Penny, A., Williams, R. J. B. and Cooke, G. W. 1960. The value of calcium nitrate and urea for main-crop potatoes and kale. The Journal of Agricultural Science. 55 (1), pp. 1-10. https://doi.org/10.1017/S0021859600021560

Effects of fertilisers and farmyard manure on the copper, manganese, molybdenum and zinc removed by arable crops at Rothamsted

A - Papers appearing in refereed journals

Williams, R. J. B., Stojkovska, A., Cooke, G. W. and Widdowson, F. V. 1960. Effects of fertilisers and farmyard manure on the copper, manganese, molybdenum and zinc removed by arable crops at Rothamsted. Journal of the Science of Food and Agriculture - jsfa. 11 (10), pp. 570-575. https://doi.org/10.1002/jsfa.2740111004

High Levels of Phosphorus and Die-Back in Yellow Lupins

A - Papers appearing in refereed journals

Warren, R. G. and Benzian, B. 1959. High Levels of Phosphorus and Die-Back in Yellow Lupins. Nature. 184, p. 1588. https://doi.org/10.1038/1841588a0

Fertilizers, crop production and soil fertility

A - Papers appearing in refereed journals

Cooke, G. W. 1959. Fertilizers, crop production and soil fertility. Farmers Club Journal. 1 (5).

Soils and fertilizers

A - Papers appearing in refereed journals

Cooke, G. W. 1959. Soils and fertilizers. Journal of the Royal Agricultural Society of England.

Field experiments on phosphate fertilizers. A joint investigation

A - Papers appearing in refereed journals

Cooke, G. W. and Widdowson, F. V. 1959. Field experiments on phosphate fertilizers. A joint investigation. The Journal of Agricultural Science. 53 (1), pp. 46-63. https://doi.org/10.1017/S0021859600030914

Comparisons between combine-drilling and broadcasting muriate of potash for spring barley

A - Papers appearing in refereed journals

Widdowson, F. V., Penny, A., Williams, R. J. B. and Cooke, G. W. 1959. Comparisons between combine-drilling and broadcasting muriate of potash for spring barley. The Journal of Agricultural Science. 53 (1), pp. 10-16. https://doi.org/10.1017/S0021859600030860

Manuring experiments on flax

A - Papers appearing in refereed journals

Cooke, G. W. and Warren, R. G. 1959. Manuring experiments on flax. Empire Journal of Experimental Agriculture. 27, pp. 171-186.

The Exhaustion Land site

A - Papers appearing in refereed journals

Warren, R. G. and Johnston, A. E. 1959. The Exhaustion Land site. Rothamsted Experimental Station Report.

The nation's plant food larder

A - Papers appearing in refereed journals

Cooke, G. W. 1958. The nation's plant food larder. Journal of the Science of Food and Agriculture - jsfa. 9 (12), pp. 761-772. https://doi.org/10.1002/jsfa.2740091201

Recent advances in the efficient use of fertilisers

A - Papers appearing in refereed journals

Cooke, G. W. 1958. Recent advances in the efficient use of fertilisers. ICAM Journal - Journal of the Corn Agricultual Merchants.

Soils and fertilizers

A - Papers appearing in refereed journals

Cooke, G. W. 1958. Soils and fertilizers. Journal of the Royal Agricultural Society of England.

Comparisons between placing and broadcasting of nitrogen, phosphorus and potassium fertilizers for potatoes, peas, beans, kale and maize

A - Papers appearing in refereed journals

Widdowson, F. V. and Cooke, G. W. 1958. Comparisons between placing and broadcasting of nitrogen, phosphorus and potassium fertilizers for potatoes, peas, beans, kale and maize. The Journal of Agricultural Science. 51 (1), pp. 53-61. https://doi.org/10.1017/S0021859600032780

Nitrogen fertilizers for spring barley and wheat

A - Papers appearing in refereed journals

Widdowson, F. V. and Cooke, G. W. 1958. Nitrogen fertilizers for spring barley and wheat. The Journal of Agricultural Science. 50 (3), pp. 312-321. https://doi.org/10.1017/S0021859600031518

Micro-nutrients in fertilisers

A - Papers appearing in refereed journals

Stojkovska, A. and Cooke, G. W. 1958. Micro-nutrients in fertilisers. 42, p. 1368.

Field experiments on concentrated organic nitrogen fertilizers

A - Papers appearing in refereed journals

Warren, R. G., Cooke, E. H. and Cooke, G. W. 1958. Field experiments on concentrated organic nitrogen fertilizers. The Journal of Agricultural Science. 50 (3), pp. 273-283. https://doi.org/10.1017/S0021859600031476

Soil nitrogen. III.—Mineralizable nitrogen determined by an incubation technique

A - Papers appearing in refereed journals

Cooke, G. W. and Cunningham, R. K. 1958. Soil nitrogen. III.—Mineralizable nitrogen determined by an incubation technique. Journal of the Science of Food and Agriculture - jsfa. 9 (6), pp. 324-330. https://doi.org/10.1002/jsfa.2740090602

Soil nitrogen. II.—Changes in levels of inorganic nitrogen in a clay‐loam soil caused by fertilizer additions, by leaching and uptake by grass

A - Papers appearing in refereed journals

Cunningham, R. K. and Cooke, G. W. 1958. Soil nitrogen. II.—Changes in levels of inorganic nitrogen in a clay‐loam soil caused by fertilizer additions, by leaching and uptake by grass. Journal of the Science of Food and Agriculture - jsfa. 9 (6), pp. 317-324. https://doi.org/10.1002/jsfa.2740090601

The value of nitrophosphate fertilizers

A - Papers appearing in refereed journals

Cooke, G. W., Mattingly, G. E. G. and Widdowson, F. V. 1958. The value of nitrophosphate fertilizers. The Journal of Agricultural Science. 50 (3), pp. 253-259. https://doi.org/10.1017/S0021859600031440

Changes in the soil of a long-continued field experiment at Saxmundham, Suffolk

A - Papers appearing in refereed journals

Cooke, G. W., Mattingly, G. E. G. and Williams, R. J. B. 1958. Changes in the soil of a long-continued field experiment at Saxmundham, Suffolk. Journal of Soil Science. 9 (2), pp. 298-305. https://doi.org/10.1111/j.1365-2389.1958.tb01921.x

The Residual Effects of the Manurial and Cropping Treatments in the Agdell Rotation Experiment

A - Papers appearing in refereed journals

Warren, R. G. 1957. The Residual Effects of the Manurial and Cropping Treatments in the Agdell Rotation Experiment. Rothamsted Experimental Station Report. pp. 252 - 260.

The value of fertilizer placement

A - Papers appearing in refereed journals

Cooke, G. W. 1957. The value of fertilizer placement. Journal of the Royal Agricultural Society of England.

Soils and fertilizers

A - Papers appearing in refereed journals

Cooke, G. W. 1957. Soils and fertilizers. Journal of the Royal Agricultural Society of England.

Report on 1956 experiments on winter and spring sown cereals comparing methods of application of nitrogen and potassium fertilizers and forms of nitrogen fertilizers

A - Papers appearing in refereed journals

Widdowson, F. V., Penny, A. and Cooke, G. W. 1957. Report on 1956 experiments on winter and spring sown cereals comparing methods of application of nitrogen and potassium fertilizers and forms of nitrogen fertilizers.

The value of mid-season top-dressings of nitrogen fertilizer for main-crop potatoes

A - Papers appearing in refereed journals

Cooke, G. W., Widdowson, F. V. and Wilcox, J. C. 1957. The value of mid-season top-dressings of nitrogen fertilizer for main-crop potatoes. The Journal of Agricultural Science. 49 (1), pp. 81-87. https://doi.org/10.1017/S0021859600034341

Investigations on soil nitrogen I The influence of nitrogen fertilizers and rainfall on soil nitrate concentrations

A - Papers appearing in refereed journals

Cooke, G. W., Bates, J. A. R. and Tinker, P. B. 1957. Investigations on soil nitrogen I The influence of nitrogen fertilizers and rainfall on soil nitrate concentrations. Journal of the Science of Food and Agriculture - jsfa. 8 (4), pp. 248-252. https://doi.org/10.1002/jsfa.2740080411

NPK residues from fertilizers and farmyard manure, in long term experiments at Rothamsted

A - Papers appearing in refereed journals

Warren, R. G. 1956. NPK residues from fertilizers and farmyard manure, in long term experiments at Rothamsted. Proceedings - Fertiliser Society, London. 37 (1).

The value of rock phosphate for direct application

A - Papers appearing in refereed journals

Cooke, G. W. 1956. The value of rock phosphate for direct application. Empire Journal of Experimental Agriculture. 24, pp. 295-306.

Soils and fertilizers

A - Papers appearing in refereed journals

Cooke, G. W. 1956. Soils and fertilizers. Journal of the Royal Agricultural Society of England.

Field experiments on phosphate fertilizers: A joint investigation

A - Papers appearing in refereed journals

Cooke, G. W. 1956. Field experiments on phosphate fertilizers: A joint investigation. The Journal of Agricultural Science. 48 (1), pp. 74-103. https://doi.org/10.1017/S0021859600030331

The effect of some silicate slags on the utilization of soil and fertilizer phosphorus

A - Papers appearing in refereed journals

Cooke, G. W. 1956. The effect of some silicate slags on the utilization of soil and fertilizer phosphorus. Journal of the Science of Food and Agriculture - jsfa. 7 (1), pp. 56-61. https://doi.org/10.1002/jsfa.2740070111

Fertilizer placement

A - Papers appearing in refereed journals

Cooke, G. W. 1956. Fertilizer placement. Outlook on Agriculture. 1 (2), pp. 43-51. https://doi.org/10.1177/003072705600100202

The value of nitrophosphate for spring-sown cereals

A - Papers appearing in refereed journals

Cooke, G. W. and Widdowson, F. V. 1956. The value of nitrophosphate for spring-sown cereals. The Journal of Agricultural Science. 47 (1), pp. 112-116. https://doi.org/10.1017/S0021859600039824

Report on 1956 experiments comparing placing and broadcasting of nitrogen, phosphorus and potassium for potatoes, peas, beans, kale and maize

A - Papers appearing in refereed journals

Widdowson, F. V., Penny, A. and Cooke, G. W. 1956. Report on 1956 experiments comparing placing and broadcasting of nitrogen, phosphorus and potassium for potatoes, peas, beans, kale and maize.

Comparisons of ammonium sulphate, calcium nitrate, and urea for potatoes and kale

A - Papers appearing in refereed journals

Cooke, G. W., Penny, A. and Widdowson, F. V. 1956. Comparisons of ammonium sulphate, calcium nitrate, and urea for potatoes and kale. ARC Conference on Fertilisers.

Fertilizer placement for horticultural crops

A - Papers appearing in refereed journals

Cooke, G. W., Jackson, M. V., Widdowson, F. V. and Wilcox, J. C. 1956. Fertilizer placement for horticultural crops. The Journal of Agricultural Science. 47 (2), pp. 249-256. https://doi.org/10.1017/S0021859600040181

Performances of fertilizer distributors used in field experiments

A - Papers appearing in refereed journals

Cooke, G. W. 1955. Performances of fertilizer distributors used in field experiments. Empire Journal of Experimental Agriculture.

Fertilizers make good waht the rain washed out

A - Papers appearing in refereed journals

Cooke, G. W. 1955. Fertilizers make good waht the rain washed out. Farmer and Stock-breeder.

Alternatives to superphosphate

A - Papers appearing in refereed journals

Cooke, G. W. 1955. Alternatives to superphosphate. Agriculture: the journal of the Ministry of Agriculture.

Fertilizer placement for arable and herbage crops

A - Papers appearing in refereed journals

Cooke, G. W. and Widdowson, F. V. 1955. Fertilizer placement for arable and herbage crops. Field Crop Abstracts. 8, pp. 233-237.

The value of sewage‐sludge ashes as phosphorus fertilizers

A - Papers appearing in refereed journals

Cooke, G. W. and Nixon, H. L. 1955. The value of sewage‐sludge ashes as phosphorus fertilizers. Journal of the Science of Food and Agriculture - jsfa. 6 (2), pp. 79-82. https://doi.org/10.1002/jsfa.2740060203

Residual effects of phosphate fertilizers on a Wealden soil

A - Papers appearing in refereed journals

Cooke, G. W. and Gasser, J. K. R. 1955. Residual effects of phosphate fertilizers on a Wealden soil. Journal of Soil Science. 6 (2), pp. 248-253. https://doi.org/10.1111/j.1365-2389.1955.tb00848.x

Design of fertilizer distributors and their mechanisms

A - Papers appearing in refereed journals

Cooke, G. W. 1954. Design of fertilizer distributors and their mechanisms. Journal of ISAE. 10.

Nitrogen and phosphorus fertilisers in North-Western Europe

A - Papers appearing in refereed journals

Cooke, G. W. 1954. Nitrogen and phosphorus fertilisers in North-Western Europe. Proceedings - Fertiliser Society, London.

Off to a good start

A - Papers appearing in refereed journals

Cooke, G. W. 1954. Off to a good start. Farmer and Stock-breeder.

Recent advances in fertilizer placement II Fertilizer placement in England

A - Papers appearing in refereed journals

Cooke, G. W. 1954. Recent advances in fertilizer placement II Fertilizer placement in England. Journal of the Science of Food and Agriculture - jsfa. 5 (9), pp. 429-440. https://doi.org/10.1002/jsfa.2740050907

Recent developments in the use of fertilizers

A - Papers appearing in refereed journals

Cooke, G. W. 1954. Recent developments in the use of fertilizers. Agricultural Progress. 29 (2), pp. 110-120.

Placement of fertilizers for potatoes planted by machines

A - Papers appearing in refereed journals

Cooke, G. W., Jackson, M. V. and Widdowson, F. V. 1954. Placement of fertilizers for potatoes planted by machines. The Journal of Agricultural Science. 44 (3), pp. 327-339. https://doi.org/10.1017/S0021859600044804

The importance of organic matter in crop production

A - Papers appearing in refereed journals

Cooke, G. W. and Garner, H. V. 1954. The importance of organic matter in crop production. Journal of the Royal Agricultural Society of England. 115, pp. 27-40.

Nutrition problems in forest nurseries summary report for 1952

G - Articles in popular magazines and other technical publications

Crowther, E. M., Warren, R. G. and Benzian, B. 1954. Nutrition problems in forest nurseries summary report for 1952. Report on Forest Research.

The correlation of easily soluble phosphorus in soils with responses of crops to dressings of phosphate fertilizers

A - Papers appearing in refereed journals

Cooke, G. W. 1953. The correlation of easily soluble phosphorus in soils with responses of crops to dressings of phosphate fertilizers. Journal of the Science of Food and Agriculture - jsfa. 4 (8), pp. 353-363. https://doi.org/10.1002/jsfa.2740040801

Methods of applying fertilizers for herbage crops

A - Papers appearing in refereed journals

Cooke, G. W. and Widdowson, F. V. 1953. Methods of applying fertilizers for herbage crops. The Journal of Agricultural Science. 43 (3), pp. 358-364. https://doi.org/10.1017/S0021859600057555

Placement of fertilizers for row crops

A - Papers appearing in refereed journals

Cooke, G. W. and Widdowson, F. V. 1953. Placement of fertilizers for row crops. The Journal of Agricultural Science. 43 (3), pp. 348-357. https://doi.org/10.1017/S0021859600057543

Rothamsted experiments on field beans 1. Manuring and cultivation of field beans

A - Papers appearing in refereed journals

Boyd, D. A., Cooke, G. W., Garner, H. V. and Moffatt, J. R. 1952. Rothamsted experiments on field beans 1. Manuring and cultivation of field beans. Journal of the Royal Agricultural Society of England. 113, pp. 55-69.

Fixation of phosphate during the acid extraction of soils

A - Papers appearing in refereed journals

Cooke, G. W. 1951. Fixation of phosphate during the acid extraction of soils. Journal of Soil Science. 2 (2), pp. 254-262. https://doi.org/10.1111/j.1365-2389.1951.tb00607.x

How to apply fertilizers for sugar beet

A - Papers appearing in refereed journals

Cooke, G. W. 1951. How to apply fertilizers for sugar beet. British Sugar Beet Review.

The mechanical application of fertilizers in field experiments

A - Papers appearing in refereed journals

Cooke, G. W. 1951. The mechanical application of fertilizers in field experiments. Empire Journal of Experimental Agriculture.

Fertilizer placement machinery

A - Papers appearing in refereed journals

Cooke, G. W. 1951. Fertilizer placement machinery. Journal Institute of British Agricultural Engineers.

Placement of fertilizers for sugar beet

A - Papers appearing in refereed journals

Cooke, G. W. 1951. Placement of fertilizers for sugar beet. The Journal of Agricultural Science. 41 (1-2), pp. 174-178. https://doi.org/10.1017/S0021859600058664

Methods of applying fertilizer to potatoes planted by machines

A - Papers appearing in refereed journals

Cooke, G. W. 1950. Methods of applying fertilizer to potatoes planted by machines. Agriculture: the journal of the Ministry of Agriculture. 56, pp. 571-573.

Apparatus for fertilizer placement field work

A - Papers appearing in refereed journals

Cooke, G. W. 1949. Apparatus for fertilizer placement field work. Chemistry & Industry. 36, pp. 615-618.

Recent developments in fertiliser placement

A - Papers appearing in refereed journals

Cooke, G. W. 1949. Recent developments in fertiliser placement . Farming.

Placement of fertilizers for row crops

A - Papers appearing in refereed journals

Cooke, G. W. 1949. Placement of fertilizers for row crops. The Journal of Agricultural Science. 39 (4), pp. 359-373. https://doi.org/10.1017/S0021859600004639

Placement of fertilizer for potatoes

A - Papers appearing in refereed journals

Cooke, G. W. 1949. Placement of fertilizer for potatoes. The Journal of Agricultural Science. 39 (1), pp. 96-103. https://doi.org/10.1017/S0021859600004342

Fertilizer placement experiments

A - Papers appearing in refereed journals

Cooke, G. W. 1949. Fertilizer placement experiments . Agricultural Engineering Record.

The fertilizer value of basic slags and other phosphates

A - Papers appearing in refereed journals

Crowther, E. M. and Warren, R. G. 1934. The fertilizer value of basic slags and other phosphates. Agricultural progress. 11, pp. 99-105.

The Colorimetric Determination of Phosphoric Acid in Hydrochloric Acid and Citric Acid Extracts of Soils

A - Papers appearing in refereed journals

Warren, R. G. and Pugh, A. J. 1930. The Colorimetric Determination of Phosphoric Acid in Hydrochloric Acid and Citric Acid Extracts of Soils. The Journal of Agricultural Science. 20 (4), pp. 532-540. https://doi.org/10.1017/S0021859600007358

The chemistry of basic slag I The determination of fluorine in basic slag

A - Papers appearing in refereed journals

Warren, R. G., Gimingham, C. T. and Page, H. J. 1925. The chemistry of basic slag I The determination of fluorine in basic slag. The Journal of Agricultural Science. 15 (4), pp. 516-528. https://doi.org/10.1017/S0021859600082459