Soil nitrogen: how efficiently do crops use it?

Knight, S. and Macdonald, A. J. 2008. Soil nitrogen: how efficiently do crops use it? TAG Bulletin. 16, pp. 4-7.

Related outputs

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

A - Papers appearing in refereed journals

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

Long-term trends in yield variance of temperate managed grassland

A - Papers appearing in refereed journals

Macholdt, J., Hadasch, S., Macdonald, A. J., Perryman, S. A. M., Piepho, H., Scott, T., Styczen, M. E. and Storkey, J. 2023. Long-term trends in yield variance of temperate managed grassland. Agronomy for Sustainable Development - ASD. 43 (3), p. 37. https://doi.org/10.1007/s13593-023-00885-w

Acetamiprid fate in a sandy loam with contrasting soil organic matter contents: A comparison of the degradation, sorption and leaching of commercial neonicotinoid formulations

A - Papers appearing in refereed journals

Potts, J., Jones, D. L., Macdonald, A. J., Ma, Q. and Cross, P. 2022. Acetamiprid fate in a sandy loam with contrasting soil organic matter contents: A comparison of the degradation, sorption and leaching of commercial neonicotinoid formulations. Science of the Total Environment. 842 (10 Oct), p. 155711. https://doi.org/10.1016/j.scitotenv.2022.156711

A heteroskedastic model of park grass spring hay yields in response to weather suggests continuing yield decline with climate change in future decades

A - Papers appearing in refereed journals

Addy, J. W. G., Ellis, R. H., MacLaren, C., Macdonald, A. J., Semenov, M. A. and Mead, A. 2022. A heteroskedastic model of park grass spring hay yields in response to weather suggests continuing yield decline with climate change in future decades. Journal of the Royal Society Interface. 19 (193), p. 20220361. https://doi.org/10.1098/rsif.2022.0361

The role of long-term experiments in validating trait-based approaches to achieving multifunctionality in grasslands

A - Papers appearing in refereed journals

Storkey, J. and Macdonald, A. J. 2022. The role of long-term experiments in validating trait-based approaches to achieving multifunctionality in grasslands. Frontiers of Agricultural Science and Engineering - FASE. 9 (2), pp. 187-196. https://doi.org/10.15302/J-FASE-2021438

Modelling Heteroskedasticity, Overdispersion and the Impacts of Climate Change for Long-Term Hay Yield Data

C2 - Non-edited contributions to conferences

Addy, J., Mead, A., Macdonald, A. J., Semenov, M. A. and Ellis, R. H. 2022. Modelling Heteroskedasticity, Overdispersion and the Impacts of Climate Change for Long-Term Hay Yield Data. 31st International Biometric Conference. Riga, Latvia 10 Jul 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.

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

Is it possible to attain the same soil organic matter content in arable agriculture soils as under natural vegetation?

A - Papers appearing in refereed journals

Powlson, D. S., Poulton, P. R., Glendining, M. J., Macdonald, A. J. and Goulding, K. W. T. 2022. Is it possible to attain the same soil organic matter content in arable agriculture soils as under natural vegetation? Outlook on Agriculture. 51 (1), pp. 91-104. https://doi.org/10.1177/00307270221082113

Results of the Classical and other Long-term Experiments

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

Macdonald, A. J. Results of the Classical and other Long-term Experiments .

Changes in agricultural climate in South-Eastern England from 1892 to 2016 and differences in cereal and permanent grassland yield

A - Papers appearing in refereed journals

Addy, J., Ellis, R. H., Macdonald, A. J., Semenov, M. A. and Mead, A. 2021. Changes in agricultural climate in South-Eastern England from 1892 to 2016 and differences in cereal and permanent grassland yield. Agricultural and Forest Meteorology. 308-309, p. 108560. https://doi.org/10.1016/j.agrformet.2021.108560

Substrate control of sulphur utilisation and microbial stoichiometry in soil: Results of C-13, N-15, C-14, and S-35 quad labelling

A - Papers appearing in refereed journals

Ma, Q., Kuzyakov, Y., Pan, W., Tang, S., Chadwick, D. R., Wen, Y., Hill, P. W., Macdonald, A. J., Ge, T., Si, L., Wu, L. and Jones, D. L. 2021. Substrate control of sulphur utilisation and microbial stoichiometry in soil: Results of C-13, N-15, C-14, and S-35 quad labelling. The ISME Journal. https://doi.org/10.1038/s41396-021-00999-7

Agricultural intensification and climate change have increased the threat from weeds

A - Papers appearing in refereed journals

Storkey, J., Mead, A., Addy, J. and Macdonald, A. J. 2021. Agricultural intensification and climate change have increased the threat from weeds. Global Change Biology. 118 (2), p. e2002548117. https://doi.org/10.1111/gcb.15585

Effects of Fertilizers and Manures on Temporal Yield Variability of Winter Rye

A - Papers appearing in refereed journals

Studnicki, M., Macholdt, J., Macdonald, A. J. and Stepien, W. 2021. Effects of Fertilizers and Manures on Temporal Yield Variability of Winter Rye. Agronomy. 11 (3), p. 519. https://doi.org/10.3390/agronomy11030519

Estimating maximum fine-fraction organic carbon in UK grasslands

A - Papers appearing in refereed journals

Paterson, K. C., Cloy, J. M., Rees, R. M., Baggs, E. M., Martinea, H., Fornara, D., Macdonald, A. J. and Buckingham, S. 2021. Estimating maximum fine-fraction organic carbon in UK grasslands. Biogeosciences. 18, pp. 605-620. https://doi.org/10.5194/bg-18-605-2021

Stomatal conductance limited the CO2 response of grassland in the last century

A - Papers appearing in refereed journals

Cabrera, J. C. B., Hirl, R. T., Schaufele, R., Macdonald, A. J. and Schnyder, H. 2021. Stomatal conductance limited the CO2 response of grassland in the last century. BMC Biology. 19 (article), p. 50. https://doi.org/10.1186/s12915-021-00988-4

The effect of organic carbon content on soil compression characteristics

A - Papers appearing in refereed journals

Suravi, K., Attenborough, K., Taherzadeh, S., Macdonald, A. J., Powlson, D. S., Ashton, R. W., Suravi, K. N. and Whalley, W. R. 2021. The effect of organic carbon content on soil compression characteristics. Soil & Tillage Research. 209 (May), p. 104975. https://doi.org/10.1016/j.still.2021.104975

The impact of weather and increased atmospheric CO2 from 1892 to 2016 on simulated yields of UK wheat

A - Papers appearing in refereed journals

Addy, J. W. G., Ellis, R.H., Macdonald, A. J., Semenov, M. A. and Mead, A. 2021. The impact of weather and increased atmospheric CO2 from 1892 to 2016 on simulated yields of UK wheat. Journal of the Royal Society Interface. 18 (179), p. 20210250. https://doi.org/10.1098/rsif.2021.0250

The Multi-Fungicide Resistance Status of Aspergillus fumigatus Populations in Arable Soils and the Wider European Environment

A - Papers appearing in refereed journals

Fraaije, B. A., Atkins, S. L., Hanley, S. J., Macdonald, A. J. and Lucas, J. 2020. The Multi-Fungicide Resistance Status of Aspergillus fumigatus Populations in Arable Soils and the Wider European Environment. Frontiers in Microbiology. 11, p. 599233. https://doi.org/10.3389/fmicb.2020.599233

Assessing the evolution of wheat grain traits during the last 166 years using archived samples

A - Papers appearing in refereed journals

Mariem, S. B., Gamez, A. L., Larraya, L., Fuertes‑Mendizabal, T., Canameras, N., Araus, J. L., McGrath, S. P., Hawkesford, M. J., Muru, C. G., Gaudeul, M., Medina, L., Paton, A., Cattivelli, L., Fangmeier, A., Bunce, J., Tausz‑Posch, S., Macdonald, A. J. and Aranjuelo, I. 2020. Assessing the evolution of wheat grain traits during the last 166 years using archived samples. Scientific Reports. 10 (Article), p. 21828. https://doi.org/10.1038/s41598-020-78504-x

Long-term farmyard manure application affects soil organic phosphorus cycling: A combined metagenomic and 33P/14C labelling study

A - Papers appearing in refereed journals

Ma, Q., Wen, Y., Ma, J., Macdonald, A. J., Hill, P. W., Chadwick, D. R., Wu, L. and Jones. D. L. 2020. Long-term farmyard manure application affects soil organic phosphorus cycling: A combined metagenomic and 33P/14C labelling study. Soil Biology and Biochemistry. 149 (Article), p. 107959. https://doi.org/10.1016/j.soilbio.2020.107959

Soil carbon, nitrogen, and sulphur status affects the metabolism of organic S but not its uptake by microorganisms

A - Papers appearing in refereed journals

Ma, Q., Wen, Y., Pan, W., Macdonald, A. J., Hill, P. W., Chadwick, D. R., Wu, L. and Jones, D. L. 2020. Soil carbon, nitrogen, and sulphur status affects the metabolism of organic S but not its uptake by microorganisms . Soil Biology and Biochemistry. 149, p. 107943. https://doi.org/10.1016/j.soilbio.2020.107943

Long-term agricultural research at Rothamsted

B - Book chapters etc edited externally

Macdonald, A. J., Poulton, P. R., Glendining, M. J. and Powlson, D. S. 2020. Long-term agricultural research at Rothamsted. in: Bhullar, G.S. and Riar, A. (ed.) Long-term Farming Systems Research - Ensuring Food Security in Changing Scenarios Academic Press Inc Elsevier Science. pp. 15-33

Long-term analysis from a cropping system perspective - Yield stability, environmental adaptability, and production risk of winter barley

A - Papers appearing in refereed journals

Macholdt, J., Styczen M. E., Macdonald, A. J., Piepho, H-P. and Honermeier, B. 2020. Long-term analysis from a cropping system perspective - Yield stability, environmental adaptability, and production risk of winter barley . European Journal of Agronomy. 117, p. 126056. https://doi.org/10.1016/j.eja.2020.126056

Farmyard manure applications stimulate soil carbon and nitrogen cycling by boosting microbial biomass rather than changing its community composition

A - Papers appearing in refereed journals

Ma, Q., Wen, Y., Wang, D., Sun, X., Hill, P. W., Macdonald, A. J., Chadwick, D. R., Wu, L. and Jones, D. L. 2020. Farmyard manure applications stimulate soil carbon and nitrogen cycling by boosting microbial biomass rather than changing its community composition . Soil Biology and Biochemistry. 144, p. 107760. https://doi.org/10.1016/j.soilbio.2020.107760

The effects of cropping sequence, fertilization, and straw management on the yield stability of winter wheat (1986–2017) in the Broadbalk Wheat Experiment, Rothamsted, UK.

A - Papers appearing in refereed journals

Macholdt, J., Piepho, H-P., Honermeier, B., Perryman, S. A. M., Macdonald, A. J. and Poulton, P. R. 2020. The effects of cropping sequence, fertilization, and straw management on the yield stability of winter wheat (1986–2017) in the Broadbalk Wheat Experiment, Rothamsted, UK. The Journal of Agricultural Science. 158 (1-2), pp. 65-79. https://doi.org/10.1017/S0021859620000301

Investigating the effects of inter-annual weather variation (1968-2016) on the functional response of cereal grain yield to applied nitrogen, using data from the Rothamsted Long-Term Experiments

A - Papers appearing in refereed journals

Addy, J., Ellis, R. H., Macdonald, A. J., Semenov, M. A. and Mead, A. 2020. Investigating the effects of inter-annual weather variation (1968-2016) on the functional response of cereal grain yield to applied nitrogen, using data from the Rothamsted Long-Term Experiments. Agricultural and Forest Meteorology. 284, p. 107898. https://doi.org/10.1016/j.agrformet.2019.107898

Changes of oxygen isotope values of soil P pools associated with changes in soil pH

A - Papers appearing in refereed journals

Pfahler, V., Macdonald, A. J., Mead, A., Smith, A. C., Tamburini, F., Blackwell, M. S. A. and Granger, S. J. 2020. Changes of oxygen isotope values of soil P pools associated with changes in soil pH. Scientific Reports. 10 (2065). https://doi.org/10.1038/s41598-020-59103-2

Assessing the performance of UAS-compatible multispectral and hyperspectral sensors for soil organic carbon prediction

A - Papers appearing in refereed journals

Crucil, G., Castaldi, F., Aldana-Jague, E., van Wesemael, B., Macdonald, A. J. and Van Oost, K. 2019. Assessing the performance of UAS-compatible multispectral and hyperspectral sensors for soil organic carbon prediction . Sustainability. 11 (7), p. 1889. https://doi.org/10.3390/su11071889

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 .

Rothamsted Long-term experiments : guide to the classical and other long-term experiments, datasets and sample archive

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

Macdonald, A. J., Poulton, P. R., Clark, I. M., Scott, T., Glendining, M. J., Perryman, S. A. M., Storkey, J., Bell, J. R., Shield, I. F., Mcmillan, V. E. and Hawkins, J. M. B. Macdonald, A. J. (ed.) 2018. Rothamsted Long-term experiments : guide to the classical and other long-term experiments, datasets and sample archive. Rothamsted Research, Harpenden.

Correspondence of measured soil carbon fractions and RothC pools for equilibrium and non-equilibrium states

A - Papers appearing in refereed journals

Herbst, M., Welp, G., Macdonald, A. J., Jate, M., Hädicke, A., Scherer, H., Gaiser, T., Herrmann, F., Amelung, W. and Vanderborght, J. 2018. Correspondence of measured soil carbon fractions and RothC pools for equilibrium and non-equilibrium states. Geoderma. 314 (Supplement C), pp. 37-46. https://doi.org/10.1016/j.geoderma.2017.10.047

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?

Microbial and plant-derived compounds both contribute to persistent soil organic carbon in temperate soils

A - Papers appearing in refereed journals

Barre, P., Quenea, K., Vidal, A., Cecillon, L., Christensen, B. T., Katterer, T., Macdonald, A. J., Petit, L., Plante, A. F., Van Oort, F. and Chenu, C. 2018. Microbial and plant-derived compounds both contribute to persistent soil organic carbon in temperate soils. Biogeochemistry. 140, pp. 81-92. https://doi.org/10.1007/s10533-018-0475-5

A model based on Rock-Eval thermal analysis to quantify the size of the centennially persistent organic carbon pool in temperate soils

A - Papers appearing in refereed journals

Cecillon, L., Baudin, F., Chenu, C., Houot, S., Jolivet, R., Katterer, T., Lutfalla, S., Macdonald, A. J., Van Oort, F., Plante, A. F., Savignac, F., Soucemarianadin, L. N. and Barre, P. 2018. A model based on Rock-Eval thermal analysis to quantify the size of the centennially persistent organic carbon pool in temperate soils . Biogeosciences. 15 (9), pp. 2835-2849. https://doi.org/10.5194/bg-15-2835-2018

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

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

The electronic Rothamsted Archive (e-RA): an online resource for data from the Rothamsted long-term experiments

A - Papers appearing in refereed journals

Perryman, S. A. M., Castells-Brooke, N. I. D., Glendining, M. J., Goulding, K. W. T., Hawkesford, M. J., Macdonald, A. J., Ostler, R. J., Poulton, P. R., Rawlings, C. J., Scott, T. and Verrier, P. J. 2018. The electronic Rothamsted Archive (e-RA): an online resource for data from the Rothamsted long-term experiments. Scientific Data. 5, p. 180072. https://doi.org/10.1038/sdata.2018.72

The Broadbalk Wheat Experiment : 174 years of winter wheat / 174 años de trigo The Broadbalk Wheat Experiment Un ensayo a muy largo plazo

G - Articles in popular magazines and other technical publications

Macdonald, A. J., Fonteyne, S. and Verhulst, N. 2017. The Broadbalk Wheat Experiment : 174 years of winter wheat / 174 años de trigo The Broadbalk Wheat Experiment Un ensayo a muy largo plazo. Enlace : La revista de la Agricultura de Conservacion.

Sustainable Intensification - Lessons from the Rothamsted Long-term Experiments

A - Papers appearing in refereed journals

Macdonald, A. J., Poulton, P. R., Glendining, M. J., Goulding, K. W. T., Perryman, S. A. M. and Powlson, D. S. 2017. Sustainable Intensification - Lessons from the Rothamsted Long-term Experiments. Aspects of Applied Biology. 136, pp. 239-244.

Pyrogenic Carbon Lacks Long-Term Persistence in Temperate Arable Soils

A - Papers appearing in refereed journals

Lutfalla, S., Abiven, S., Barré, P., Wiedemeier, D. B., Christensen, B. T., Houot, S., Kätterer,T., Macdonald, A. J., Van Oort, F. and Chenu, C. 2017. Pyrogenic Carbon Lacks Long-Term Persistence in Temperate Arable Soils. Frontiers in Earth Science. 5 (96). https://doi.org/10.3389/feart.2017.00096

Historical trends in iodine and selenium in soil and herbage at the Park Grass Experiment, Rothamsted Research, UK

A - Papers appearing in refereed journals

Bowley, H. E., Mathers, A. W., Young, S. D., Macdonald, A. J., Ander, E. L., Watts, M. J., Zhao, F-J., McGrath, S. P., Crout, N. M. J. and Bailey, E. H. 2017. Historical trends in iodine and selenium in soil and herbage at the Park Grass Experiment, Rothamsted Research, UK. Soil Use and Management. 33 (2), pp. 252-262. https://doi.org/10.1111/sum.12343

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

The energetic and chemical signatures of persistent soil organic matter

A - Papers appearing in refereed journals

Barre, P., Plante, A., Cecillon, L., Lutfalla, S., Baudin, F., Bernard, S., Christensen, B. T., Eglin, T., Fernandez, J. M., Houot, S., Katterer, T., Le Guillou, C., Macdonald, A. J., Van Oort, F. and Chenu, C. 2016. The energetic and chemical signatures of persistent soil organic matter. Biogeochemistry. 130 (1-2), pp. 1-12. https://doi.org/10.1007/s10533-016-0246-0

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).

The unique contribution of Rothamsted to ecological research at large temporal scales

B - Book chapters etc edited externally

Storkey, J., Macdonald, A. J., Bell, J. R., Clark, I. M., Gregory, A. S., Hawkins, N. J., Hirsch, P. R., Todman, L. C. and Whitmore, A. P. 2016. The unique contribution of Rothamsted to ecological research at large temporal scales. in: Dumbrell, A. J., Kordas, R. L. and Woodward, G. (ed.) Advances in Ecological Research 55: Large-Scale Ecology: Model Systems to Global Perspectives Academic Press, Oxford. pp. 3-42

UAS-based soil carbon mapping using VIS-NIR (480-1000 nm) multi-spectral imaging: potential and limitations

A - Papers appearing in refereed journals

Aldana Jague, E., Heckrath, G., Macdonald, A. J., Van Wesemael, B. and Van Oost, K. 2016. UAS-based soil carbon mapping using VIS-NIR (480-1000 nm) multi-spectral imaging: potential and limitations. Geoderma. 275 (1 August), pp. 55-66. https://doi.org/10.1016/j.geoderma.2016.04.012

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

Genome size and ploidy influence angiosperm species' biomass under nitrogen and phosphorus limitation

A - Papers appearing in refereed journals

Guignard, M. S., Nichols, R. A., Knell, R. J., Macdonald, A. J., Romila, C-A., Trimmer, M., Leitch, I. J. and Leitch, A. R. 2016. Genome size and ploidy influence angiosperm species' biomass under nitrogen and phosphorus limitation. New Phytologist. 210 (4), pp. 1195-1206. https://doi.org/10.1111/nph.13881

Last-century increases in intrinsic water-use efficiency of grassland communities have occurred over a wide range of vegetation composition, nutrient inputs and soil pH

A - Papers appearing in refereed journals

Kohler, I. H., Macdonald, A. J. and Schnyder, H. 2016. Last-century increases in intrinsic water-use efficiency of grassland communities have occurred over a wide range of vegetation composition, nutrient inputs and soil pH. Plant Physiology. 170, pp. 881-890. https://doi.org/10.1104/pp.15.01472

The impact of fertilizer management on the oxidation status of terrestrial organic matter

A - Papers appearing in refereed journals

Worrall, F., Clay, G. D. and Macdonald, A. J. 2016. The impact of fertilizer management on the oxidation status of terrestrial organic matter. Soil Use and Management. 32 (1), pp. 45-52. https://doi.org/10.1111/sum.12228

Grassland biodiversity bounces back from long-term nitrogen addition

A - Papers appearing in refereed journals

Storkey, J., Macdonald, A. J., Poulton, P. R., Scott, T., Kohler, I. H., Schnyder, H., Goulding, K. W. T. and Crawley, M. J. 2015. Grassland biodiversity bounces back from long-term nitrogen addition. Nature. 528, pp. 401-404. https://doi.org/10.1038/nature16444

The Rothamsted Long-term Experiments

A - Papers appearing in refereed journals

Macdonald, A. J., Powlson, D. S., Poulton, P. R., Watts, C. W., Clark, I. M., Storkey, J., Hawkins, N. J., Glendining, M. J., Goulding, K. W. T. and McGrath, S. P. 2015. The Rothamsted Long-term Experiments. Aspects of Applied Biology. 128.

High-resolution spatial patterns of soil organic carbon content derived from low-altitude aerial multi-band imagery on the Broadbalk Wheat Experiment at Rothamsted, UK

C2 - Non-edited contributions to conferences

Aldana Jague, E., Goulding, K. W. T., Heckrath, G., Macdonald, A. J., Poulton, P. R., Stevens, A., Van Wesemael, B. and Van Oost, K. 2014. High-resolution spatial patterns of soil organic carbon content derived from low-altitude aerial multi-band imagery on the Broadbalk Wheat Experiment at Rothamsted, UK. European Geosciences Union (EGU).

Triaxial testing to determine the effect of soil type and organic carbon content on soil consolidation and shear deformation characteristics

A - Papers appearing in refereed journals

Chakraborty, D., Watts, C. W., Powlson, D. S., Macdonald, A. J., Ashton, R. W., White, Robin P. and Whalley, W. R. 2014. Triaxial testing to determine the effect of soil type and organic carbon content on soil consolidation and shear deformation characteristics. Soil Science Society of America Journal. 78, pp. 1192-1200. https://doi.org/10.2136/sssaj2014.01.0007

The continuing value of long-term field experiments: insights for achieving food security and environmental integrity

B - Book chapters etc edited externally

Powlson, D. S., Macdonald, A. J. and Poulton, P. R. 2014. The continuing value of long-term field experiments: insights for achieving food security and environmental integrity. in: Dent, D. (ed.) Soil as world heritage Springer, Dordrecht. pp. 131-157

Historical arsenic contamination of soil due to long-term phosphate fertiliser applications

A - Papers appearing in refereed journals

Hartley, T. N., Macdonald, A. J., McGrath, S. P. and Zhao, F-J. 2013. Historical arsenic contamination of soil due to long-term phosphate fertiliser applications. Environmental Pollution. 180, pp. 259-264. https://doi.org/10.1016/j.envpol.2013.05.034

Unexpected treasures from the Rothamsted experiments: how long term studies continue to give new data and insights for the improvement of food and feed production

C2 - Non-edited contributions to conferences

Powlson, D. S., Macdonald, A. J. and Poulton, P. R. 2012. Unexpected treasures from the Rothamsted experiments: how long term studies continue to give new data and insights for the improvement of food and feed production. Abstracts Bioforsk-konferansen 2012, Oslo, 6-7 February 2012 .

Molecular weight of dissolved organic carbon, nitrogen and phenolics in grassland soils

A - Papers appearing in refereed journals

Jones, D. L., Willett, V. B., Stockdale, E. A., Macdonald, A. J. and Murphy, D. V. 2012. Molecular weight of dissolved organic carbon, nitrogen and phenolics in grassland soils. Soil Science Society of America Journal. 76, pp. 142-150. https://doi.org/10.2136/sssaj2011.0252

Advances in the understanding of nutrient dynamics and management in UK agriculture

A - Papers appearing in refereed journals

Dungait, J. A. J., Cardenas, L. M., Blackwell, M. S. A., Wu, L., Withers, P. J. A., Chadwick, D. R., Bol, R., Murray, P. J., Macdonald, A. J., Whitmore, A. P. and Goulding, K. W. T. 2012. Advances in the understanding of nutrient dynamics and management in UK agriculture. Science of the Total Environment. 434 (15 September), pp. 39-50. https://doi.org/10.1016/j.scitotenv.2012.04.029

Nutrient supply enhanced the increase in intrinsic water-use efficiency of a temperate seminatural grassland in the last century

A - Papers appearing in refereed journals

Kohler, I. H., Macdonald, A. J. and Schnyder, H. 2012. Nutrient supply enhanced the increase in intrinsic water-use efficiency of a temperate seminatural grassland in the last century. Global Change Biology. 18 (11), pp. 3367-3376. https://doi.org/10.1111/j.1365-2486.2012.02781.x

The potential to increase soil carbon stocks through reduced tillage or organic material additions in England and Wales: a case study

A - Papers appearing in refereed journals

Powlson, D. S., Bhogal, A., Chambers, B. J., Coleman, K., Macdonald, A. J., Goulding, K. W. T. and Whitmore, A. P. 2012. The potential to increase soil carbon stocks through reduced tillage or organic material additions in England and Wales: a case study. Agriculture, Ecosystems & Environment. 146, pp. 23-33. https://doi.org/10.1016/j.agee.2011.10.004

Effects of take-all (Gaeumannomyces graminis var. tritici) on crop N uptake and residual mineral N in soil at harvest of winter wheat

A - Papers appearing in refereed journals

Macdonald, A. J. and Gutteridge, R. J. 2012. Effects of take-all (Gaeumannomyces graminis var. tritici) on crop N uptake and residual mineral N in soil at harvest of winter wheat. Plant and Soil. 350, pp. 253-260. https://doi.org/10.1007/s11104-011-0900-1

Corrigendum: Increases in soil organic carbon sequestration can reduce the global warming potential of long-term liming to permanent grassland

A - Papers appearing in refereed journals

Fornara, D. A., Steinbeiss, S., Mcnamara, N. P., Gleixner, G., Oakley, S., Poulton, P. R., Macdonald, A. J. and Bardgett, R. D. 2011. Corrigendum: Increases in soil organic carbon sequestration can reduce the global warming potential of long-term liming to permanent grassland. Global Change Biology. 17 (8), p. 2762. https://doi.org/10.1111/j.1365-2486.2011.02445.x

Increases in soil organic carbon sequestration can reduce the global warming potential of long-term liming to permanent grassland

A - Papers appearing in refereed journals

Fornara, D. A., Steinbeiss, S., Mcnamara, N. P., Gleixner, G., Oakley, S., Poulton, P. R., Macdonald, A. J. and Bardgett, R. D. 2011. Increases in soil organic carbon sequestration can reduce the global warming potential of long-term liming to permanent grassland. Global Change Biology. 17 (5), pp. 1925-1934. https://doi.org/10.1111/j.1365-2486.2010.02328.x

Effects of nutrient availability on intrinsic water-use efficiency of temperate semi-natural grassland under rising atmospheric CO2 during the last century

C2 - Non-edited contributions to conferences

Kohler, I., Poulton, P. R., Macdonald, A. J., Auerswald, K. and Schnyder, H. 2010. Effects of nutrient availability on intrinsic water-use efficiency of temperate semi-natural grassland under rising atmospheric CO2 during the last century. Abstracts Grassland in a Changing World: 23rd General Meeting of the European Grassland Federation, Kiel, 29 August-2 September 2010 . pp. 15

Efficiency of soil N use by arable crops

C2 - Non-edited contributions to conferences

Macdonald, A. J., Knight, S. M., Glendining, M. J., Whitmore, A. P., Dailey, A. G., Goulding, K. W. T., Sinclair, A. H. and Rees, R. M. 2009. Efficiency of soil N use by arable crops. Abstracts 16th Nitrogen Workshop, Turin, 28 June-1 July 2009 . pp. 233-234

Soil organic carbon contents in long-term experimental grassland plots in the UK (Palace Leas and Park Grass) have not changed consistently in recent decades

A - Papers appearing in refereed journals

Hopkins, D. W., Waite, I. S., Mcnichol, J. W., Poulton, P. R., Macdonald, A. J. and O'donnell, A. G. 2009. Soil organic carbon contents in long-term experimental grassland plots in the UK (Palace Leas and Park Grass) have not changed consistently in recent decades. Global Change Biology. 15 (7), pp. 1739-1754. https://doi.org/10.1111/j.1365-2486.2008.01809.x

Factors affecting the recovery of available soil nitrogen by cereal and oilseed rape crops

C2 - Non-edited contributions to conferences

Knight, S. M., Macdonald, A. J., Glendining, M. J., Whitmore, A. P., Dailey, A. G., Goulding, K. W. T., Sinclair, A. H. and Rees, R. M. 2008. Factors affecting the recovery of available soil nitrogen by cereal and oilseed rape crops. Abstracts AAB Conference on Resource Capture by Crops: Integrated Resources, Nottingham, 10-12 September 2008 .

Better estimation of soil nitrogen use efficiency by cereals and oilseed rape (HGCA Research Review No. 68)

D1 - Technical reports: non-confidential

Knight, S., Macdonald, A. J., Glendining, M. J., Whitmore, A. P., Dailey, A. G., Goulding, K. W. T., Sinclair, A. and Rees, B. 2008. Better estimation of soil nitrogen use efficiency by cereals and oilseed rape (HGCA Research Review No. 68). Home Grown Cereals Authority (HGCA) London.

Dissolved organic nitrogen and mechanisms of its uptake by plants in agricultural systems

B - Book chapters etc edited externally

Jones, D. L., Farrar, J. F., Macdonald, A. J., Kemmitt, S. J. and Murphy, D. V. 2008. Dissolved organic nitrogen and mechanisms of its uptake by plants in agricultural systems. in: Ma, L., Bruulsema, T. and Ahuja, L. R. (ed.) Quantifying and understanding plant nitrogen uptake for systems modeling CRC Press, Boca Raton, Florida. pp. 95-126

Long-term experiments as a unique resource for research on local and global carbon cycling

C1 - Edited contributions to conferences/learned societies

Powlson, D. S., Poulton, P. R. and Macdonald, A. J. 2008. Long-term experiments as a unique resource for research on local and global carbon cycling. Christensen, B. T., Schacht, M. and Petersen, J. (ed.) Long-term Field Experiments - a Unique Research Platform. Proceedings of NJF Seminar 407, Askov, 16-18 June 2008. DJF Plant Science No. 137 . pp. 20-23

The Rothamsted long-term experiments - past, present and future

C2 - Non-edited contributions to conferences

Macdonald, A. J., Poulton, P. R., Powlson, D. S. and Goulding, K. W. T. 2007. The Rothamsted long-term experiments - past, present and future. Abstracts International Conference on Long-Term Ecological Research (ILTER), Beijing, 20-21 August 2007 .

Labile soil organic matter pools under a mixed grass/lucerne pasture and adjacent native bush in Western Australia

A - Papers appearing in refereed journals

Macdonald, A. J., Murphy, D. V., Mahieu, N. and Fillery, I. R. P. 2007. Labile soil organic matter pools under a mixed grass/lucerne pasture and adjacent native bush in Western Australia. Australian journal of soil research. 45, pp. 333-343. https://doi.org/10.1071/SR06133

How land use and management affects soluble organic nitrogen in British soils

C2 - Non-edited contributions to conferences

Goulding, K. W. T., Macdonald, A. J., Francis, S., Stockdale, E., Willett, V., Jones, D., Baddeley, J., Green, J., Watson, C., Saunders, G. and Cadisch, G. 2005. How land use and management affects soluble organic nitrogen in British soils. Abstracts Global Nitrogen Enrichment (GANE) Programme Finale, London 16 February 2005 .

The use of cover crops in cereal-based cropping systems to control nitrate leaching in SE England

A - Papers appearing in refereed journals

Macdonald, A. J., Poulton, P. R., Howe, M., Goulding, K. W. T. and Powlson, D. S. 2005. The use of cover crops in cereal-based cropping systems to control nitrate leaching in SE England. Plant and Soil. 273, pp. 355-373. https://doi.org/10.1007/s11104-005-0193-3

Too much of a good thing? How land use and management affects soluble organic nitrogen in British soils

C2 - Non-edited contributions to conferences

Goulding, K. W. T., Macdonald, A. J., Francis, S. M. J., Stockdale, E. A., Willett, V., Jones, D., Baddeley, J., Green, J., Watson, C., Saunders, G. and Cadisch, G. 2005. Too much of a good thing? How land use and management affects soluble organic nitrogen in British soils. Abstracts NERC Global Nitrogen Enrichment (GANE) Programme Finale, London 16 February 2005 .

Impact of land use on soluble organic nitrogen in soil

A - Papers appearing in refereed journals

Willett, V. B., Green, J. J., Macdonald, A. J., Baddeley, J. A., Cadisch, G., Francis, S. M. J., Goulding, K. W. T., Saunders, G., Stockdale, E. A., Watson, C. A. and Jones, D. L. 2004. Impact of land use on soluble organic nitrogen in soil. Water Air And Soil Pollution : Focus. 4, pp. 53-60. https://doi.org/10.1007/s11267-005-3013-0

Effects of nitrogen deposition and land use on soluble organic nitrogen in British soils

C2 - Non-edited contributions to conferences

Baddeley, J. A., Willett, V. B., Macdonald, A. J., Francis, S. M. J., Goulding, K. W. T., Stockdale, E. A., Cadisch, G., Green, J. J., Watson, C. A. and Jones, D. L. 2004. Effects of nitrogen deposition and land use on soluble organic nitrogen in British soils. Abstracts British Ecological Society Annual Meeting, Lancaster, 7-9 September 2004 .

Missing N: is the solution in dissolved N?

C1 - Edited contributions to conferences/learned societies

Macdonald, A. J. and Jones, D. L. 2004. Missing N: is the solution in dissolved N? Jarvis, S. C., Roker, J. A., Hatch, D. J. and Chadwick, D. R. (ed.) Controlling nitrogen flows and losses . Wageningen Academic Publishers, Wageningen, Netherlands. pp. 600-605

Effects of land use and management on soluble organic N in UK soils

C2 - Non-edited contributions to conferences

Macdonald, A. J., Francis, S. M. J., Stockdale, E. A., Goulding, K. W. T., Willett, V. B., Jones, D. L., Baddeley, J. A., Green, J. J., Watson, C. A., Saunders, G. and Cadisch, G. 2003. Effects of land use and management on soluble organic N in UK soils. Abstracts 12th Nitrogen Workshop, Exeter, 21-24 September 2003 .

When is a measured soil organic matter fraction equivalent to a model pool?

A - Papers appearing in refereed journals

Smith, J. U., Smith, P., Monaghan, R. and Macdonald, A. J. 2002. When is a measured soil organic matter fraction equivalent to a model pool? European Journal of Soil Science. 53 (3), pp. 405-416. https://doi.org/10.1046/j.1365-2389.2002.00458.x

Using dynamic simulation models and the 'Dot-to-Dot' method to determine the optimum sampling times in field trials

A - Papers appearing in refereed journals

Smith, J. U., Smith, P., Coleman, K., Hargreaves, P. R. and Macdonald, A. J. 2002. Using dynamic simulation models and the 'Dot-to-Dot' method to determine the optimum sampling times in field trials. Soil Use and Management. 18, pp. 370-375.

The fate of residual 15N-labelled fertilizer in arable soils: its availability to subsequent crops and retention in soil

A - Papers appearing in refereed journals

Macdonald, A. J., Poulton, P. R., Stockdale, E. A., Powlson, D. S. and Jenkinson, D. S. 2002. The fate of residual 15N-labelled fertilizer in arable soils: its availability to subsequent crops and retention in soil. Plant and Soil. 246, pp. 123-137. https://doi.org/10.1023/A:1021580701267

Losses of dissolved organic N (DON) from soils of contrasting organic matter content on the Broadbalk Continuous Wheat Experiment

C2 - Non-edited contributions to conferences

Macdonald, A. J., Webster, C. P., Poulton, P. R., Wilmer, W. S. and Goulding, K. W. T. 2001. Losses of dissolved organic N (DON) from soils of contrasting organic matter content on the Broadbalk Continuous Wheat Experiment. Abstracts 11th Nitrogen Workshop, Reims, 9-12 September 2001 .

Parameterisation of a soil organic matter model based on measurable fractions

C2 - Non-edited contributions to conferences

Sohi, S. P., Arah, J. R. M., Yates, H. C., Macdonald, A. J. and Gaunt, J. L. 2001. Parameterisation of a soil organic matter model based on measurable fractions. Abstracts 11th Nitrogen Workshop, Reims, 9-13 September 2001 .

Availability of the residual nitrogen from a single application of 15N-labelled fertilizer to subsequent crops in a long-term continuous barley experiment

A - Papers appearing in refereed journals

Glendining, M. J., Poulton, P. R., Powlson, D. S., Macdonald, A. J. and Jenkinson, D. S. 2001. Availability of the residual nitrogen from a single application of 15N-labelled fertilizer to subsequent crops in a long-term continuous barley experiment. Plant and Soil. 233, pp. 231-239. https://doi.org/10.1023/A:1010508914895

The role of soil organic matter and manures in sustainable nutrient cycling

B - Book chapters etc edited externally

Goulding, K. W. T., Murphy, D. V., Macdonald, A. J., Stockdale, E. A., Gaunt, J. L., Blake, L., Ayaga, G. and Brookes, P. C. 2001. The role of soil organic matter and manures in sustainable nutrient cycling. in: Ball, B. C., Watson, C. A., Campbell, C. D. and Rees, R. M. (ed.) Sustainable management of osil organic matter Oxford CABI International, Wallingford, Oxon (CABI). pp. 221-232

The effects of cover crops on soil N transformations and losses from arable land

F - Theses

Macdonald, A. J. 2000. The effects of cover crops on soil N transformations and losses from arable land. F - Theses

Soluble organic nitrogen in agricultural soils

A - Papers appearing in refereed journals

Murphy, D. V., Macdonald, A. J., Stockdale, E. A., Goulding, K. W. T., Fortune, S., Gaunt, J. L., Poulton, P. R., Wakefield, J. A., Webster, C. P. and Wilmer, W. S. 2000. Soluble organic nitrogen in agricultural soils. Biology And Fertility Of Soils. 30, pp. 374-387. https://doi.org/10.1007/s003740050018

Physical fractionation and stable isotopes to model SOM dynamics

C2 - Non-edited contributions to conferences

Sohi, S. P., Arah, J. R. M., Yates, H. C., Macdonald, A. J. and Gaunt, J. L. 1999. Physical fractionation and stable isotopes to model SOM dynamics. Abstracts Stable Isotope and Mass Spectrometer Users Group (SIMSUG) Annual Meeting, Exeter, 19-20 January 1999 .

A new soil nitrogen and carbon cycle

C2 - Non-edited contributions to conferences

Barraclough, D., Gibbs, P. and Macdonald, A. J. 1998. A new soil nitrogen and carbon cycle. Proceedings 16th World Congress of Soil Science, Montpellier, 20-26 August 1998 . pp. 243

Nitrogen and carbon mineralization in arable soils following incorporation of cover crops

C2 - Non-edited contributions to conferences

Macdonald, A. J. and Barraclough, D. 1998. Nitrogen and carbon mineralization in arable soils following incorporation of cover crops. Abstracts British Society for Soil Science Down to Earth Conference, University of Reading, 31 March-2 April 1998 .

The use of isotope ratio mass spectrometry for the study of gaseous emissions from soils

C2 - Non-edited contributions to conferences

Dunn, R. B., Macdonald, A. J., Willison, T. W., Murphy, D. V. and Goulding, K. W. T. 1998. The use of isotope ratio mass spectrometry for the study of gaseous emissions from soils. Abstracts British Society for Soil Science Down to Earth Conference, University of Reading, 31 March-2 April 1998 .

The effect of take-all (Gaeumannomyces graminis var tritici ) disease of wheat on residual mineral N in arable soils

C2 - Non-edited contributions to conferences

Macdonald, A. J., Gutteridge, R. J. and Bradbury, N. J. 1997. The effect of take-all (Gaeumannomyces graminis var tritici ) disease of wheat on residual mineral N in arable soils. Abstracts 1st European Conference on Precision Agriculture, Warwick, 8-10 September 1997 .

Effects of season, soil type and cropping on recoveries, residues and losses of 15N-labelled fertilizer applied to arable crops in spring

A - Papers appearing in refereed journals

Macdonald, A. J., Poulton, P. R., Powlson, D. S. and Jenkinson, D. S. 1997. Effects of season, soil type and cropping on recoveries, residues and losses of 15N-labelled fertilizer applied to arable crops in spring. The Journal of Agricultural Science. 129 (2), pp. 125-154. https://doi.org/10.1017/S0021859697004619

Effects of crop residue incorporation on gross nitrogen mineralisation rates in an arable soil

C2 - Non-edited contributions to conferences

Macdonald, A. J., Barraclough, D., Gibbs, P. and Ayaga, G. O. 1996. Effects of crop residue incorporation on gross nitrogen mineralisation rates in an arable soil. Transactions 9th Nitrogen Workshop, Braunschweig, 9-12 September 1996 .

Measuring nitrogen mineralization using 15N isotopic dilution

C2 - Non-edited contributions to conferences

Murphy, D. V., Gaunt, J. L., Macdonald, A. J. and Sohi, S. P. 1996. Measuring nitrogen mineralization using 15N isotopic dilution. Abstracts Stable Isotope Mass Spectrometry Users Group 2nd Annual Conference (SIMSUG '96), Llandudno, 10-12 January 1996 .

Mineralization of cover crop N: its contribution to subsequent crop N uptake and losses

C1 - Edited contributions to conferences/learned societies

Macdonald, A. J., Poulton, P. R., Christian, D. G. and Howe, M. T. 1996. Mineralization of cover crop N: its contribution to subsequent crop N uptake and losses. Proceedings 2nd EC Concerted Action on Cover Crops (CA 2108), Gumpenstein, Austria, 4-7 November 1996 .

Measuring nitrogen mineralisation using 15N isotopic dilution

C2 - Non-edited contributions to conferences

Murphy, D. V., Gaunt, J. L., Macdonald, A. J. and Sohi, S. P. 1996. Measuring nitrogen mineralisation using 15N isotopic dilution. Abstracts British Society of Soil Science Meeting, Dundee, 23-25 September 1996 . pp. 73

Mineralization of cover crop N: its contribution to subsequent crop N uptake and losses

C1 - Edited contributions to conferences/learned societies

Macdonald, A. J., Poulton, P. R., Christian, D. G. and Howe, M. T. 1995. Mineralization of cover crop N: its contribution to subsequent crop N uptake and losses. Proceedings 1st EC Concerted Action on Cover Crops (CA 2108), Wageningen, May 1995 .

Effects of cover crops on soil N transformations and losses from arable land

C2 - Non-edited contributions to conferences

Macdonald, A. J., Poulton, P. R., Christian, D. G. and Howe, M. T. 1995. Effects of cover crops on soil N transformations and losses from arable land. Proceedings of the ARIA Nitrate Workshop, Rothamsted, 25 January 1995 .

Effects of cover crops on soil N transformations and losses from arable land

C2 - Non-edited contributions to conferences

Macdonald, A. J., Poulton, P. R., Christian, D. G. and Howe, M. T. 1994. Effects of cover crops on soil N transformations and losses from arable land. Abstracts 8th Nitrogen Workshop, University of Ghent, 5-8 September 1994 .

Effects of cover crops on soil N transformations and losses from arable land

C2 - Non-edited contributions to conferences

Macdonald, A. J., Poulton, P. R., Christian, D. G. and Howe, M. T. 1993. Effects of cover crops on soil N transformations and losses from arable land. Abstracts AFRC Meeting on Nitrogen Metabolism in Plants and Soil, Silsoe College, December 1993 .

Environmental consequences of changes in arable agriculture

C2 - Non-edited contributions to conferences

Powlson, D. S., Goulding, K. W. T., Macdonald, A. J. and Poulton, P. R. 1992. Environmental consequences of changes in arable agriculture. Land Use Change - the Cause and Consequences: Proceedings 27th ITE Symposium, 1992. HMSO, London. pp. 193

The fate of residual fertilizer N in arable soils

C1 - Edited contributions to conferences/learned societies

Macdonald, A. J., Poulton, P. R. and Powlson, D. S. 1992. The fate of residual fertilizer N in arable soils. Scaife, A. (ed.) Proceedings 2nd Congress of the European Society for Agronomy, Warwick University, 1992. European Society for Agronomy, Wellesbourne. pp. 416-417

The effectiveness of winter cover crops in minimising nitrogen leaching loss

C1 - Edited contributions to conferences/learned societies

Webster, C. P., Macdonald, A. J., Poulton, P. R. and Christian, D. G. 1992. The effectiveness of winter cover crops in minimising nitrogen leaching loss. Scaife, A. (ed.) Proceedings Second Congress of the European Society for Agronomy, Warwick University, 23-28 August 1992. European Society for Agronomy, Wellesbourne. pp. 380-381

Leaching of nitrate from arable land: final report to MAFF on contract CSA 1058

D1 - Technical reports: non-confidential

Macdonald, A. J., Poulton, P. R., Powlson, D. S. and Jenkinson, D. S. 1992. Leaching of nitrate from arable land: final report to MAFF on contract CSA 1058.

Arable crops and farming practices: effects on nitrate in arable soils

C2 - Non-edited contributions to conferences

Macdonald, A. J., Poulton, P. R. and Powlson, D. S. 1991. Arable crops and farming practices: effects on nitrate in arable soils. Proceedings, 1st Congress of the European Society of Agronomy, Paris, 5-7 December, 1990. pp. Session 5 P 28

Sources of nitrate leaching from arable soil to aquifers

C1 - Edited contributions to conferences/learned societies

Macdonald, A. J., Poulton, P. R. and Powlson, D. S. 1990. Sources of nitrate leaching from arable soil to aquifers. Merckx, R., Vlassak, K. and Vereecken, H. (ed.) Fertilization and the environment. University Press, Leuven. pp. 281-288

Implications to N losses of a switch from inorganic towards organic manures and from continuous arable cropping to ley-arable rotations. Agriculture Group Symposium : future use of nitrogen fertilisers.

A - Papers appearing in refereed journals

Goulding, K. W. T., Powlson, D. S., Poulton, P. R., Webster, C. P., Macdonald, A. J. and Glendining, M. J. 1989. Implications to N losses of a switch from inorganic towards organic manures and from continuous arable cropping to ley-arable rotations. Agriculture Group Symposium : future use of nitrogen fertilisers. Journal of the Science of Food and Agriculture. 48 (1), pp. 115-129. https://doi.org/10.1002/jsfa.2740480113