Items where Author is "Macdonald, Andy"

Number of items: 113.
  • Management choices in cereal production: Lessons from the Broadbalk Long-term trial. (2024) Poulton, Paul, Powlson, David, Gregory, Andy, Glendining, Margaret, White, R. P., Clark, Suzanne, Wilmer, W. S., Macdonald, Andy, Johnston, Johnny picture_as_pdf
  • The Broadbalk Wheat Experiment, Rothamsted, UK Crop yields and soil changes during the last 50 years. (2024) Poulton, Paul, Johnston, Johnny, Glendining, Margaret, White, Rodger, Gregory, Andy, Clark, Suzanne, Wilmer, Wendy, Macdonald, Andy, Powlson, David picture_as_pdf
  • Long-term trends in yield variance of temperate managed grassland. (2023) Macholdt, J., Hadasch, S., Macdonald, Andy, Perryman, Sarah, Piepho, H., Scott, Tony, Styczen, M. E., Storkey, Jonathan
  • A heteroskedastic model of park grass spring hay yields in response to weather suggests continuing yield decline with climate change in future decades. (2022) Addy, John, Ellis, R. H., MacLaren, Chloe, Macdonald, Andy, Semenov, Mikhail, Mead, Andrew picture_as_pdf
  • Modelling Heteroskedasticity, Overdispersion and the Impacts of Climate Change for Long-Term Hay Yield Data. (2022) Addy, John, Mead, Andrew, Macdonald, Andy, Semenov, Mikhail, Ellis, R. H.
  • Acetamiprid fate in a sandy loam with contrasting soil organic matter contents: A comparison of the degradation, sorption and leaching of commercial neonicotinoid formulations. (2022) Potts, J., Jones, D. L., Macdonald, Andy, Ma, Q., Cross, P. picture_as_pdf
  • 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. (2022) Johnston, Johnny, Poulton, Paul, Macdonald, Andy, Glendining, Margaret
  • The role of long-term experiments in validating trait-based approaches to achieving multifunctionality in grasslands. (2022) Storkey, Jonathan, Macdonald, Andy
  • Is it possible to attain the same soil organic matter content in arable agriculture soils as under natural vegetation? (2022) Powlson, David, Poulton, Paul, Glendining, Margaret, Macdonald, Andy, Goulding, Keith
  • Results of the Classical and other Long-term Experiments. (2021) Macdonald, Andy
  • Changes in agricultural climate in South-Eastern England from 1892 to 2016 and differences in cereal and permanent grassland yield. (2021) Addy, John, Ellis, R. H., Macdonald, Andy, Semenov, Mikhail, Mead, Andrew picture_as_pdf
  • The impact of weather and increased atmospheric CO2 from 1892 to 2016 on simulated yields of UK wheat. (2021) Addy, John, Ellis, R.H., Macdonald, Andy, Semenov, Mikhail, Mead, Andrew
  • Substrate control of sulphur utilisation and microbial stoichiometry in soil: Results of C-13, N-15, C-14, and S-35 quad labelling. (2021) Ma, Q., Kuzyakov, Y., Pan, W., Tang, S., Chadwick, Dave, Wen, Y., Hill, P. W., Macdonald, Andy, Ge, T., Si, L., Wu, L., Jones, D. L. picture_as_pdf
  • Stomatal conductance limited the CO2 response of grassland in the last century. (2021) Cabrera, J. C. B., Hirl, R. T., Schaufele, R., Macdonald, Andy, Schnyder, H.
  • Agricultural intensification and climate change have increased the threat from weeds. (2021) Storkey, Jonathan, Mead, Andrew, Addy, John, Macdonald, Andy
  • Effects of Fertilizers and Manures on Temporal Yield Variability of Winter Rye. (2021) Studnicki, M., Macholdt, J., Macdonald, Andy, Stepien, W.
  • The effect of organic carbon content on soil compression characteristics. (2021) Suravi, Kamrun, Attenborough, K., Taherzadeh, S., Macdonald, Andy, Powlson, David, Ashton, Rhys, Suravi, K. N., Whalley, Richard
  • Estimating maximum fine-fraction organic carbon in UK grasslands. (2021) Paterson, K. C., Cloy, J. M., Rees, R. M., Baggs, E. M., Martinea, H., Fornara, D., Macdonald, Andy, Buckingham, S.
  • The Multi-Fungicide Resistance Status of Aspergillus fumigatus Populations in Arable Soils and the Wider European Environment. (2020) Fraaije, Bart, Atkins, Sarah, Hanley, Steve, Macdonald, Andy, Lucas, John
  • Assessing the evolution of wheat grain traits during the last 166 years using archived samples. (2020) Mariem, S. B., Gamez, A. L., Larraya, L., Fuertes‑Mendizabal, T., Canameras, N., Araus, J. L., McGrath, Steve, Hawkesford, Malcolm, Muru, C. G., Gaudeul, M., Medina, L., Paton, A., Cattivelli, L., Fangmeier, A., Bunce, J., Tausz‑Posch, S., Macdonald, Andy, Aranjuelo, I.
  • Long-term farmyard manure application affects soil organic phosphorus cycling: A combined metagenomic and 33P/14C labelling study. (2020) Ma, Q., Wen, Y., Ma, J., Macdonald, Andy, Hill, P. W., Chadwick, Dave, Wu, L., Jones., D. L. picture_as_pdf
  • Soil carbon, nitrogen, and sulphur status affects the metabolism of organic S but not its uptake by microorganisms. (2020) Ma, Q., Wen, Y., Pan, W., Macdonald, Andy, Hill, P. W., Chadwick, Dave, Wu, L., Jones, D. L. picture_as_pdf
  • Long-term agricultural research at Rothamsted. (2020) Macdonald, Andy, Poulton, Paul, Glendining, Margaret, Powlson, David picture_as_pdf
  • Long-term analysis from a cropping system perspective - Yield stability, environmental adaptability, and production risk of winter barley. (2020) Macholdt, J., Styczen, M. E., Macdonald, Andy, Piepho, H-P., Honermeier, B. picture_as_pdf
  • 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. (2020) Macholdt, J., Piepho, H-P., Honermeier, B., Perryman, Sarah, Macdonald, Andy, Poulton, Paul
  • Farmyard manure applications stimulate soil carbon and nitrogen cycling by boosting microbial biomass rather than changing its community composition. (2020) Ma, Q., Wen, Y., Wang, D., Sun, X., Hill, P. W., Macdonald, Andy, Chadwick, Dave, Wu, L., Jones, D. L. picture_as_pdf
  • Changes of oxygen isotope values of soil P pools associated with changes in soil pH. (2020) Pfahler, Verena, Macdonald, Andy, Mead, Andrew, Smith, A. C., Tamburini, F., Blackwell, Martin, Granger, Steve
  • 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. (2020) Addy, John, Ellis, R. H., Macdonald, Andy, Semenov, Mikhail, Mead, Andrew
  • Assessing the performance of UAS-compatible multispectral and hyperspectral sensors for soil organic carbon prediction. (2019) Crucil, G., Castaldi, F., Aldana-Jague, E., van Wesemael, B., Macdonald, Andy, Van Oost, K.
  • Microbial and plant-derived compounds both contribute to persistent soil organic carbon in temperate soils. (2018) Barre, P., Quenea, K., Vidal, A., Cecillon, L., Christensen, B. T., Katterer, T., Macdonald, Andy, Petit, L., Plante, A. F., Van Oort, F., Chenu, C. picture_as_pdf
  • Rothamsted Long-term experiments : guide to the classical and other long-term experiments, datasets and sample archive. (2018) Macdonald, Andy, Poulton, Paul, Clark, Ian, Scott, Tony, Glendining, Margaret, Perryman, Sarah, Storkey, Jonathan, Bell, James, Shield, Ian, Mcmillan, Vanessa, Hawkins, Jane
  • The electronic Rothamsted Archive (e-RA): an online resource for data from the Rothamsted long-term experiments. (2018) Perryman, Sarah, Castells, Nathalie, Glendining, Margaret, Goulding, Keith, Hawkesford, Malcolm, Macdonald, Andy, Ostler, Richard, Poulton, Paul, Rawlings, Chris, Scott, Tony, Verrier, Paul
  • A model based on Rock-Eval thermal analysis to quantify the size of the centennially persistent organic carbon pool in temperate soils. (2018) Cecillon, L., Baudin, F., Chenu, C., Houot, S., Jolivet, R., Katterer, T., Lutfalla, S., Macdonald, Andy, Van Oort, F., Plante, A. F., Savignac, F., Soucemarianadin, L. N., Barre, P.
  • 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. (2018) Poulton, Paul, Johnston, Johnny, Macdonald, Andy, White, Rodger, Powlson, David
  • 4 Per Mille – Is It Feasible to sequester. (2018) Powlson, David, Poulton, Paul, Macdonald, Andy, Johnston, Johnny, White, Rodger, Goulding, Keith
  • 4 per mille – is it feasible to sequester soil carbon at this rate annually in agricultural soils? (2018) Powlson, David, Poulton, Paul, Macdonald, Andy, Johnston, Johnny, White, Rodger, Goulding, Keith picture_as_pdf
  • Sustainable Intensification - Lessons from the Rothamsted Long-term Experiments. (2017) Macdonald, Andy, Poulton, Paul, Glendining, Margaret, Goulding, Keith, Perryman, Sarah, Powlson, David
  • Pyrogenic Carbon Lacks Long-Term Persistence in Temperate Arable Soils. (2017) Lutfalla, S., Abiven, S., Barré, P., Wiedemeier, D. B., Christensen, B. T., Houot, S., Kätterer, T., Macdonald, Andy, Van Oort, F., Chenu, C.
  • Correspondence of measured soil carbon fractions and RothC pools for equilibrium and non-equilibrium states. (2017) Herbst, M., Welp, G., Macdonald, Andy, Jate, M., Hädicke, A., Scherer, H., Gaiser, T., Herrmann, F., Amelung, W., Vanderborght, J. picture_as_pdf
  • The Broadbalk Wheat Experiment : 174 years of winter wheat / 174 años de trigo The Broadbalk Wheat Experiment Un ensayo a muy largo plazo. (2017) Macdonald, Andy, Fonteyne, S., Verhulst, N.
  • Historical trends in iodine and selenium in soil and herbage at the Park Grass Experiment, Rothamsted Research, UK. (2017) Bowley, H. E., Mathers, A. W., Young, S. D., Macdonald, Andy, Ander, E. L., Watts, M. J., Zhao, Fangjie, McGrath, Steve, Crout, N. M. J., Bailey, E. H. picture_as_pdf
  • Changes in soil organic matter over 70 years in continuous arable and ley–arable rotations on a sandy loam soil in England. (2017) Johnston, Johnny, Poulton, Paul, Coleman, Kevin, Macdonald, Andy, White, Rodger
  • UAS-based soil carbon mapping using VIS-NIR (480-1000 nm) multi-spectral imaging: potential and limitations. (2016) Aldana Jague, E., Heckrath, G., Macdonald, Andy, Van Wesemael, B., Van Oost, K. picture_as_pdf
  • Genome size and ploidy influence angiosperm species' biomass under nitrogen and phosphorus limitation. (2016) Guignard, M. S., Nichols, R. A., Knell, R. J., Macdonald, Andy, Romila, C-A., Trimmer, M., Leitch, I. J., Leitch, A. R.
  • Determining the longer term decline in plant-available soil phosphorus from short-term measured values. (2016) Johnston, Johnny, Poulton, Paul, White, R. P., Macdonald, Andy picture_as_pdf
  • Potassium management in soils and crops: a review. (2016) Johnston, Johnny, Poulton, Paul, Goulding, Keith, Macdonald, Andy, Glendining, Margaret
  • The UK Environmental change network North Wyke the first 20 years (1993-2012). (2016) Beaumont, Deborah
  • The energetic and chemical signatures of persistent soil organic matter. (2016) 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, Andy, Van Oort, F., Chenu, C.
  • The impact of fertilizer management on the oxidation status of terrestrial organic matter. (2016) Worrall, F., Clay, G. D., Macdonald, Andy picture_as_pdf
  • The unique contribution of Rothamsted to ecological research at large temporal scales. (2016) Storkey, Jonathan, Macdonald, Andy, Bell, James, Clark, Ian, Gregory, Andy, Hawkins, Nichola, Hirsch, Penny, Todman, Lindsay, Whitmore, Andy picture_as_pdf
  • Grassland biodiversity bounces back from long-term nitrogen addition. (2015) Storkey, Jonathan, Macdonald, Andy, Poulton, Paul, Scott, Tony, Kohler, I. H., Schnyder, H., Goulding, Keith, Crawley, M. J. picture_as_pdf
  • 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. (2015) Kohler, I. H., Macdonald, Andy, Schnyder, H.
  • The Rothamsted Long-term Experiments. (2015) Macdonald, Andy, Powlson, David, Poulton, Paul, Watts, Chris, Clark, Ian, Storkey, Jonathan, Hawkins, Nichola, Glendining, Margaret, Goulding, Keith, McGrath, Steve picture_as_pdf
  • 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. (2014) Aldana Jague, E., Goulding, Keith, Heckrath, G., Macdonald, Andy, Poulton, Paul, Stevens, A., Van Wesemael, B., Van Oost, K.
  • Triaxial testing to determine the effect of soil type and organic carbon content on soil consolidation and shear deformation characteristics. (2014) Chakraborty, D., Watts, Chris, Powlson, David, Macdonald, Andy, Ashton, Rhys, White, R. P., Whalley, Richard
  • The UK Environmental Change Network Rothamsted: physical and atmospheric measurements. (2014) Scott, Tony
  • The continuing value of long-term field experiments: insights for achieving food security and environmental integrity. (2014) Powlson, David, Macdonald, Andy, Poulton, Paul picture_as_pdf
  • Historical arsenic contamination of soil due to long-term phosphate fertiliser applications. (2013) Hartley, T. N., Macdonald, Andy, McGrath, Steve, Zhao, Fangjie picture_as_pdf
  • Advances in the understanding of nutrient dynamics and management in UK agriculture. (2012) Dungait, Jennifer, Cardenas, Laura, Blackwell, Martin, Wu, Lu, Withers, P. J. A., Chadwick, Dave, Bol, Roland, Murray, Phil, Macdonald, Andy, Whitmore, Andy, Goulding, Keith picture_as_pdf
  • Effects of take-all (Gaeumannomyces graminis var. tritici) on crop N uptake and residual mineral N in soil at harvest of winter wheat. (2012) Macdonald, Andy, Gutteridge, R. J.
  • Molecular weight of dissolved organic carbon, nitrogen and phenolics in grassland soils. (2012) Jones, D. L., Willett, V. B., Stockdale, E. A., Macdonald, Andy, Murphy, D. V.
  • Nutrient supply enhanced the increase in intrinsic water-use efficiency of a temperate seminatural grassland in the last century. (2012) Kohler, I. H., Macdonald, Andy, Schnyder, H. picture_as_pdf
  • 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. (2012) Powlson, David, Macdonald, Andy, Poulton, Paul
  • The potential to increase soil carbon stocks through reduced tillage or organic material additions in England and Wales: a case study. (2011) Powlson, David, Bhogal, A., Chambers, B. J., Coleman, Kevin, Macdonald, Andy, Goulding, Keith, Whitmore, Andy picture_as_pdf
  • Corrigendum: Increases in soil organic carbon sequestration can reduce the global warming potential of long-term liming to permanent grassland. (2011) Fornara, D. A., Steinbeiss, S., Mcnamara, N. P., Gleixner, G., Oakley, S., Poulton, Paul, Macdonald, Andy, Bardgett, R. D.
  • Increases in soil organic carbon sequestration can reduce the global warming potential of long-term liming to permanent grassland. (2011) Fornara, D. A., Steinbeiss, S., Mcnamara, N. P., Gleixner, G., Oakley, S., Poulton, Paul, Macdonald, Andy, Bardgett, R. D. picture_as_pdf
  • Effects of nutrient availability on intrinsic water-use efficiency of temperate semi-natural grassland under rising atmospheric CO2 during the last century. (2010) Kohler, I., Poulton, Paul, Macdonald, Andy, Auerswald, K., Schnyder, H.
  • Efficiency of soil N use by arable crops. (2009) Macdonald, Andy, Knight, S. M., Glendining, Margaret, Whitmore, Andy, Dailey, Gordon, Goulding, Keith, Sinclair, A. H., Rees, R. M.
  • 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. (2009) Hopkins, D. W., Waite, I. S., Mcnichol, J. W., Poulton, Paul, Macdonald, Andy, O'donnell, A. G. picture_as_pdf
  • Better estimation of soil nitrogen use efficiency by cereals and oilseed rape (HGCA Research Review No. 68). (2008) Knight, S., Macdonald, Andy, Glendining, Margaret, Whitmore, Andy, Dailey, Gordon, Goulding, Keith, Sinclair, A., Rees, B.
  • Dissolved organic nitrogen and mechanisms of its uptake by plants in agricultural systems. (2008) Jones, D. L., Farrar, J. F., Macdonald, Andy, Kemmitt, S. J., Murphy, D. V.
  • Factors affecting the recovery of available soil nitrogen by cereal and oilseed rape crops. (2008) Knight, S. M., Macdonald, Andy, Glendining, Margaret, Whitmore, Andy, Dailey, Gordon, Goulding, Keith, Sinclair, A. H., Rees, R. M.
  • Long-term experiments as a unique resource for research on local and global carbon cycling. (2008) Powlson, David, Poulton, Paul, Macdonald, Andy
  • Soil nitrogen: how efficiently do crops use it? (2008) Knight, S., Macdonald, Andy
  • Labile soil organic matter pools under a mixed grass/lucerne pasture and adjacent native bush in Western Australia. (2007) Macdonald, Andy, Murphy, D. V., Mahieu, N., Fillery, I. R. P.
  • The Rothamsted long-term experiments - past, present and future. (2007) Macdonald, Andy, Poulton, Paul, Powlson, David, Goulding, Keith
  • How land use and management affects soluble organic nitrogen in British soils. (2005) Goulding, Keith, Macdonald, Andy, Francis, S., Stockdale, E., Willett, V., Jones, D., Baddeley, J., Green, J., Watson, C., Saunders, G., Cadisch, G.
  • Too much of a good thing? How land use and management affects soluble organic nitrogen in British soils. (2005) Goulding, Keith, Macdonald, Andy, Francis, S. M. J., Stockdale, E. A., Willett, V., Jones, D., Baddeley, J., Green, J., Watson, C., Saunders, G., Cadisch, G.
  • The use of cover crops in cereal-based cropping systems to control nitrate leaching in SE England. (2005) Macdonald, Andy, Poulton, Paul, Howe, M., Goulding, Keith, Powlson, David picture_as_pdf
  • Effects of nitrogen deposition and land use on soluble organic nitrogen in British soils. (2004) Baddeley, J. A., Willett, V. B., Macdonald, Andy, Francis, S. M. J., Goulding, Keith, Stockdale, E. A., Cadisch, G., Green, J. J., Watson, C. A., Jones, D. L.
  • Impact of land use on soluble organic nitrogen in soil. (2004) Willett, V. B., Green, J. J., Macdonald, Andy, Baddeley, J. A., Cadisch, G., Francis, S. M. J., Goulding, Keith, Saunders, G., Stockdale, E. A., Watson, C. A., Jones, D. L.
  • Missing N: is the solution in dissolved N? (2004) Macdonald, Andy, Jones, D. L.
  • Effects of land use and management on soluble organic N in UK soils. (2003) Macdonald, Andy, Francis, S. M. J., Stockdale, E. A., Goulding, Keith, Willett, V. B., Jones, D. L., Baddeley, J. A., Green, J. J., Watson, C. A., Saunders, G., Cadisch, G.
  • Using dynamic simulation models and the 'Dot-to-Dot' method to determine the optimum sampling times in field trials. (2002) Smith, J. U., Smith, Pete, Coleman, Kevin, Hargreaves, P. R., Macdonald, Andy
  • When is a measured soil organic matter fraction equivalent to a model pool? (2002) Smith, J. U., Smith, Pete, Monaghan, R., Macdonald, Andy
  • The fate of residual 15N-labelled fertilizer in arable soils: its availability to subsequent crops and retention in soil. (2002) Macdonald, Andy, Poulton, Paul, Stockdale, E. A., Powlson, David, Jenkinson, David picture_as_pdf
  • Availability of the residual nitrogen from a single application of 15N-labelled fertilizer to subsequent crops in a long-term continuous barley experiment. (2001) Glendining, Margaret, Poulton, Paul, Powlson, David, Macdonald, Andy, Jenkinson, David picture_as_pdf
  • Losses of dissolved organic N (DON) from soils of contrasting organic matter content on the Broadbalk Continuous Wheat Experiment. (2001) Macdonald, Andy, Webster, Colin, Poulton, Paul, Wilmer, Wendy S, Goulding, Keith
  • Parameterisation of a soil organic matter model based on measurable fractions. (2001) Sohi, S. P., Arah, J. R. M., Yates, H. C., Macdonald, Andy, Gaunt, J. L.
  • The role of soil organic matter and manures in sustainable nutrient cycling. (2001) Goulding, Keith, Murphy, D. V., Macdonald, Andy, Stockdale, E. A., Gaunt, J. L., Blake, L., Ayaga, G., Brookes, Philip
  • Soluble organic nitrogen in agricultural soils. (2000) Murphy, D. V., Macdonald, Andy, Stockdale, Elizabeth A, Goulding, Keith, Fortune, S., Gaunt, John L, Poulton, Paul, Wakefield, J. A., Webster, Colin, Wilmer, Wendy S picture_as_pdf
  • The effects of cover crops on soil N transformations and losses from arable land. (2000) Macdonald, Andy picture_as_pdf
  • Physical fractionation and stable isotopes to model SOM dynamics. (1999) Sohi, S. P., Arah, J. R. M., Yates, H. C., Macdonald, Andy, Gaunt, J. L.
  • Nitrogen and carbon mineralization in arable soils following incorporation of cover crops. (1998) Macdonald, Andy, Barraclough, D.
  • A new soil nitrogen and carbon cycle. (1998) Barraclough, D., Gibbs, P., Macdonald, Andy
  • The use of isotope ratio mass spectrometry for the study of gaseous emissions from soils. (1998) Dunn, R. B., Macdonald, Andy, Willison, T. W., Murphy, D. V., Goulding, Keith
  • Effects of season, soil type and cropping on recoveries, residues and losses of 15N-labelled fertilizer applied to arable crops in spring. (1997) Macdonald, Andy, Poulton, Paul, Powlson, David, Jenkinson, David picture_as_pdf
  • The effect of take-all (Gaeumannomyces graminis var tritici ) disease of wheat on residual mineral N in arable soils. (1997) Macdonald, Andy, Gutteridge, R. J., Bradbury, N. J.
  • Mineralization of cover crop N: its contribution to subsequent crop N uptake and losses. (1996) Macdonald, Andy, Poulton, Paul, Christian, D. G., Howe, M.
  • Effects of crop residue incorporation on gross nitrogen mineralisation rates in an arable soil. (1996) Macdonald, Andy, Barraclough, D., Gibbs, P., Ayaga, G. O.
  • Measuring nitrogen mineralisation using 15N isotopic dilution. (1996) Murphy, D. V., Gaunt, J. L., Macdonald, Andy, Sohi, S. P.
  • Measuring nitrogen mineralization using 15N isotopic dilution. (1996) Murphy, D. V., Gaunt, J. L., Macdonald, Andy, Sohi, S. P.
  • Mineralization of cover crop N: its contribution to subsequent crop N uptake and losses. (1996) Macdonald, Andy, Poulton, Paul, Christian, D. G., Howe, M. T.
  • Effects of cover crops on soil N transformations and losses from arable land. (1995) Macdonald, Andy, Poulton, Paul, Christian, D. G., Howe, M. T.
  • Effects of cover crops on soil N transformations and losses from arable land. (1994) Macdonald, Andy, Poulton, Paul, Christian, D. G., Howe, M. T.
  • Effects of cover crops on soil N transformations and losses from arable land. (1993) Macdonald, Andy, Poulton, Paul, Christian, D. G., Howe, M. T.
  • Environmental consequences of changes in arable agriculture. (1992) Powlson, David, Goulding, Keith, Macdonald, Andy, Poulton, Paul
  • Leaching of nitrate from arable land: final report to MAFF on contract CSA 1058. (1992) Macdonald, Andy, Poulton, Paul, Powlson, David, Jenkinson, David
  • The effectiveness of winter cover crops in minimising nitrogen leaching loss. (1992) Webster, Colin, Macdonald, Andy, Poulton, Paul, Christian, D. G.
  • The fate of residual fertilizer N in arable soils. (1992) Macdonald, Andy, Poulton, Paul, Powlson, David
  • Arable crops and farming practices: effects on nitrate in arable soils. (1991) Macdonald, Andy, Poulton, Paul, Powlson, David
  • Sources of nitrate leaching from arable soil to aquifers. (1990) Macdonald, Andy, Poulton, Paul, Powlson, David
  • 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. (1989) Goulding, Keith, Powlson, David, Poulton, Paul, Webster, Colin, Macdonald, Andy, Glendining, Margaret