Effect of different carbon and nitrogen inputs on soil chemical and biochemical properties in maize-based forage systems in Northern Italy

Monaco, S., Hatch, D. J., Dixon, E. R., Grignani, C., Sacco, D. and Zavattaro, L. 2006. Effect of different carbon and nitrogen inputs on soil chemical and biochemical properties in maize-based forage systems in Northern Italy. Proceedings of XX International Grassland Congress, Oxford Satellite Workshop, 3-6 July, 2005. pp. p82

Related outputs

Spatial and bulked soil and herbage selenium concentrations in different pasture types in SW England

N - Datasets

Summerfield, A., Dixon, E. R., Hunt, J., Fleming, H. R. and Lee, M. R. F. 2023. Spatial and bulked soil and herbage selenium concentrations in different pasture types in SW England. Rothamsted Research. https://doi.org/10.23637/rothamsted.98xxx

Water chemistry of combined surface and subsurface runoff from the North Wyke Farm Platform, with hydrologically isolated catchments sown with different pasture types.

N - Datasets

Granger, S. J., Quincke, J. A., Carswell, A. M., Olde, L., Darch, T., Peukert, S., Horrocks, C. A., Dixon, E. R., Collins, A. L., Blackwell, M. S. A., Murray, P. J., Dungait, J. A. J. and Harris, P. 2023. Water chemistry of combined surface and subsurface runoff from the North Wyke Farm Platform, with hydrologically isolated catchments sown with different pasture types. Rothamsted Research. https://doi.org/10.23637/rothamsted.98v27

Grazing and topography control nutrient pools in low Arctic soils of Southwest Greenland

A - Papers appearing in refereed journals

Van Soest, M. A. J, Anderson, N. J., Bol, R., Dixon, E. R. and Haygarth, P. M. 2022. Grazing and topography control nutrient pools in low Arctic soils of Southwest Greenland. European Journal of Soil Science. 73 (4), p. e13278. https://doi.org/10.1111/ejss.13278

High-yielding forage grass cultivars increase root biomass and soil organic carbon stocks compared with mixed-species permanent pasture in temperate soil

A - Papers appearing in refereed journals

Gregory, A. S., Joynes, A., Dixon, E. R., Beaumont, D. A., Murray, P. J., Humphreys, M. W., Richter, G. M. and Dungait, J. A. J. 2021. High-yielding forage grass cultivars increase root biomass and soil organic carbon stocks compared with mixed-species permanent pasture in temperate soil. European Journal of Soil Science. https://doi.org/10.1111/ejss.13160

Application of a triple 15N tracing technique to elucidate N transformations in a UK grassland soil

A - Papers appearing in refereed journals

Loick, N., Dixon, E. R., Matthews, G. P., Muller, C., Ciganda, V. S., Lopez-Aizpun, M., Repullo, M. A. and Cardenas, L. M. 2021. Application of a triple 15N tracing technique to elucidate N transformations in a UK grassland soil. Geoderma. 385, p. 114844. https://doi.org/10.1016/j.geoderma.2020.114844

Edaphic factors and plants influence denitrification in soils from a long-term arable experiment

A - Papers appearing in refereed journals

Clark, I. M., Fu, Q., Abadie, M., Dixon, E. R., Blaud, A. and Hirsch, P. R. 2020. Edaphic factors and plants influence denitrification in soils from a long-term arable experiment. Scientific Reports. 10 (Article), p. 16053. https://doi.org/10.1038/s41598-020-72679-z

Improved isotopic model based on 15N tracing and Rayleigh-type isotope fractionation for simulating differential sources of N2O emissions in a clay grassland soil

A - Papers appearing in refereed journals

Castellano-Hinojosa, A., Loick, N., Dixon, E. R., Matthews, P., Lewicka-Szczebak, D., Well, R., Bol, R., Charteris, A. and Cardenas, L. M. 2019. Improved isotopic model based on 15N tracing and Rayleigh-type isotope fractionation for simulating differential sources of N2O emissions in a clay grassland soil. Rapid Communications in Mass Spectrometry. https://doi.org/10.1002/rcm.8374

Isotopic evidence of biotrophy and unusual nitrogen nutrition in soil‐dwelling Hygrophoraceae

A - Papers appearing in refereed journals

Halbwachs, H., Easton, G. L., Bol, R., Hobbie, E. A., Garnett, M. H., Persoh, D., Dixon, E. R., Ostle, N., Karasch, P. and Griffith, G. W. 2018. Isotopic evidence of biotrophy and unusual nitrogen nutrition in soil‐dwelling Hygrophoraceae. Environmental Microbiology. 20 (10), pp. 3573-3588. https://doi.org/10.1111/1462-2920.14327

Impact of microbial activity on the leaching of soluble N forms in soil

A - Papers appearing in refereed journals

Carswell, A. M., Hill, P. W., Jones, D. L., Blackwell, M. S. A., Johnes, P. J., Dixon, E. R. and Chadwick, D. R. 2018. Impact of microbial activity on the leaching of soluble N forms in soil. Biology And Fertility Of Soils. 54 (1), pp. 21-25. https://doi.org/10.1007/s00374-017-1250-9

Fate of 15N-labelled ammonium nitrate with or without the new nitrification inhibitor DMPSA in an irrigated maize crop

A - Papers appearing in refereed journals

Guardia, G., Vallejo, A., Cardenas, L. M., Dixon, E. R. and Garcia-Marco, S. 2018. Fate of 15N-labelled ammonium nitrate with or without the new nitrification inhibitor DMPSA in an irrigated maize crop. Soil Biology and Biochemistry. 116 (January), pp. 193-202. https://doi.org/10.1016/j.soilbio.2017.10.013

Effect of long‐term drainage on plant community, soil carbon and nitrogen contents and stable isotopic (δ13C, δ15N) composition of a permanent grassland

A - Papers appearing in refereed journals

Harris, P., Bol, R., Evans, J., Hawkins, J. M. B., Dixon, E. R., Wolf, K., Dungait, J. A. J., Griffith, B. A., Herbst, M., Dhanoa, M. S., Beaumont, D. A., Dunn, R. M. and Weisenberg, G. L. B. 2018. Effect of long‐term drainage on plant community, soil carbon and nitrogen contents and stable isotopic (δ13C, δ15N) composition of a permanent grassland. European Journal of Soil Science. 69 (1), pp. 48-68. https://doi.org/10.1111/ejss.12504

“Hot spots” of N and C impact nitric oxide, nitrous oxide and nitrogen gas emissions from a UK grassland soil

A - Papers appearing in refereed journals

Loick, N., Dixon, E. R., Abalos, D., Vallejo, A., Matthews, G. P., Mcgeough, K., Watson, C. J., Baggs, E. M. and Cardenas, L. M. 2017. “Hot spots” of N and C impact nitric oxide, nitrous oxide and nitrogen gas emissions from a UK grassland soil. Geoderma. 305 (1 November), pp. 336-345. https://doi.org/10.1016/j.geoderma.2017.06.007

Fingerprinting source contributions to bed sediment‐associated organic matter in the headwater subcatchments of the River Itchen SAC, Hampshire, UK

A - Papers appearing in refereed journals

Collins, A. L., Zhang, Y., McMillan, S., Dixon, E. R., Cancer-Berroya, E., Poiret, C. and Stringellow, A. 2017. Fingerprinting source contributions to bed sediment‐associated organic matter in the headwater subcatchments of the River Itchen SAC, Hampshire, UK. River Research and Applications. 33 (10), pp. 1515-1526. https://doi.org/10.1002/rra.3172

Sediment‐associated organic matter sources and sediment oxygen demand in a Special Area of Conservation (SAC): A case study of the River Axe, UK

A - Papers appearing in refereed journals

Collins, A. L., Zhang, Y., McMillan, S., Dixon, E. R., Stringfellow, A., Bateman, S. and Sear, D. A. 2017. Sediment‐associated organic matter sources and sediment oxygen demand in a Special Area of Conservation (SAC): A case study of the River Axe, UK. River Research and Applications. 33 (10), pp. 1539-1552. https://doi.org/10.1002/rra.3175

Effect of cover crops on greenhouse gas emissions in an irrigated field under integrated soil fertility management

A - Papers appearing in refereed journals

Guardia, G., Abalos, D., García-Marco, S., Quemada, M., Alonso-Ayuso, M., Cardenas, L. M., Dixon, E. R. and Vallejo, A. 2016. Effect of cover crops on greenhouse gas emissions in an irrigated field under integrated soil fertility management. Biogeosciences. 13 (18), pp. 5245-5257. https://doi.org/10.5194/bg-13-5245-2016

Denitrification as a source of nitric oxide emissions from incubated soil cores from a UK grassland soil

A - Papers appearing in refereed journals

Loick, N., Dixon, E. R., Abalos, D., Vallejo, A., Matthews, G. P., Mcgeough, K. L., Well, R., Watson, C. J., Laughlin, R. J. and Cardenas, L. M. 2016. Denitrification as a source of nitric oxide emissions from incubated soil cores from a UK grassland soil. Soil Biology and Biochemistry. 95, pp. 1-7. https://doi.org/10.1016/j.soilbio.2015.12.009

Long-term management changes in topsoil and subsoil organic carbon and nitrogen dynamics in a temperate agricultural system

A - Papers appearing in refereed journals

Gregory, A. S., Dungait, J. A. J., Watts, C. W., Bol, R., Dixon, E. R., White, R. P. and Whitmore, A. P. 2016. Long-term management changes in topsoil and subsoil organic carbon and nitrogen dynamics in a temperate agricultural system. European Journal of Soil Science. 67 (4), pp. 421-430. https://doi.org/10.1111/ejss.12359

Elucidating the impact of nitrate and labile carbon application on spatial heterogeneity of denitrification by 15N modelling

C2 - Non-edited contributions to conferences

Cardenas, L. M., Loick, N., Dixon, E. R., Matthews, P., Gilsanz, C., Bol, R., Lewicka-Szczebak, D. and Well, R. 2016. Elucidating the impact of nitrate and labile carbon application on spatial heterogeneity of denitrification by 15N modelling. EGU.

Land use and soil factors affecting accumulation of phosphorus species in temperate soils

A - Papers appearing in refereed journals

Stutter, M. I., Shand, C. A., George, T. S., Blackwell, M. S. A., Dixon, E. R., Bol, R., Mackay, R. L., Richardson, A. E., Condron, L. M. and Haygarth, P. M. 2015. Land use and soil factors affecting accumulation of phosphorus species in temperate soils. Geoderma. 257-258, pp. 29-39. https://doi.org/10.1016/j.geoderma.2015.03.020

Potential use of rare earth oxides as tracers of organic matter in grassland

A - Papers appearing in refereed journals

Senbayram, M., Bol, R., Dixon, E. R., Fisher, A., Stevens, C., Quinton, J. and Fangueiro, D. 2015. Potential use of rare earth oxides as tracers of organic matter in grassland. Journal of Plant Nutrition and Soil Science. 178 (2), pp. 288-296. https://doi.org/10.1002/jpln.201400465

Nutrient dynamics during decomposition of the residues from a sown legume or ruderal plant cover in an olive oil orchard

A - Papers appearing in refereed journals

Gomez-Munoz, B., Hatch, D. J., Bol, R. and Garcia-Ruiz, R. 2014. Nutrient dynamics during decomposition of the residues from a sown legume or ruderal plant cover in an olive oil orchard. Agriculture, Ecosystems & Environment. 184, pp. 115-123. https://doi.org/10.1016/j.agee.2013.11.020

Effect of nitrogen source on nitric oxide and nitrous oxide emissions from a UK grassland soil

C2 - Non-edited contributions to conferences

Loick, N., Dixon, E. R., Well, R., Matthews, P. and Cardenas, L. M. 2014. Effect of nitrogen source on nitric oxide and nitrous oxide emissions from a UK grassland soil. Cordovil, C. M. d. S. (ed.) Abstracts 18th Nitrogen Workshop, Lisbon, 30 June- 3 July 2014 . pp. 465-467

Carbon and nitrogen in soil and vine roots in harrowed and grass-covered vineyards

A - Papers appearing in refereed journals

Agnelli, A., Bol, R., Trumbore, S. E., Dixon, E. R., Cocco, S. and Corti, G. 2014. Carbon and nitrogen in soil and vine roots in harrowed and grass-covered vineyards. Agriculture, Ecosystems & Environment. 193, pp. 70-82. https://doi.org/10.1016/j.agee.2014.04.023

Sources of sediment-bound organic matter infiltrating spawning gravels during the incubation and emergence life stages of salmonids

A - Papers appearing in refereed journals

Collins, A. L., Williams, L. J., Zhang, Y., Marius, M., Dungait, J. A. J., Smallman, D. J., Dixon, E. R., Stringfellow, A., Sear, D. A., Jones, J. I. and Naden, P. S. 2014. Sources of sediment-bound organic matter infiltrating spawning gravels during the incubation and emergence life stages of salmonids. Agriculture, Ecosystems & Environment. 196 (15 October), pp. 76-93. https://doi.org/10.1016/j.agee.2014.06.018

Agrochemical characterization, net N mineralization, and potential N leaching of composted olive-mill pomace currently produced in southern Spain

A - Papers appearing in refereed journals

Gomez-Munoz, B., Hatch, D. J., Bol, R. and Garcia-Ruiz, R. 2013. Agrochemical characterization, net N mineralization, and potential N leaching of composted olive-mill pomace currently produced in southern Spain. Journal of Plant Nutrition and Soil Science. 176 (5), pp. 655-664. https://doi.org/10.1002/jpln.201200421

Potential mineralization and nitrification in volcanic grassland soils in Chile

A - Papers appearing in refereed journals

Cardenas, L. M., Hatch, D. J., Scholefield, D., Jhurreea, D., Clark, I. M., Hirsch, P. R., Salazar, F., Rao-Ravella, S. and Alfaro, M. 2013. Potential mineralization and nitrification in volcanic grassland soils in Chile. Soil Science and Plant Nutrition. 59, pp. 380-391. https://doi.org/10.1080/00380768.2013.789395

Catchment source contributions to the sediment-bound organic matter degrading salmonid spawning gravels in a lowland river, southern England

A - Papers appearing in refereed journals

Collins, A. L., Williams, L. J., Zhang, Y., Marius, M., Dungait, J. A. J., Smallman, D. J., Dixon, E. R., Stringfellow, A., Sear, D. A., Jones, J. I. and Naden, P. S. 2013. Catchment source contributions to the sediment-bound organic matter degrading salmonid spawning gravels in a lowland river, southern England. Science of the Total Environment. 456-457 (1 July), pp. 181-195. https://doi.org/10.1016/j.scitotenv.2013.03.093

Microbial responses to the erosional redistribution of soil organic carbon in arable fields

A - Papers appearing in refereed journals

Dungait, J. A. J., Ghee, C., Rowan, J. S., Mckenzie, B. M., Hawes, C., Dixon, E. R., Paterson, E. and Hopkins, D. W. 2013. Microbial responses to the erosional redistribution of soil organic carbon in arable fields. Soil Biology and Biochemistry. 60, pp. 195-201. https://doi.org/10.1016/j.soilbio.2013.01.027

Long term drainage alters plant biodiversity and soil C- and N-storage

C1 - Edited contributions to conferences/learned societies

Wolf, K., Bol, R., Dungait, J. A. J., Dixon, E. R., Dhanoa, D., Beaumont, D. A. and Wiesenberg, G. L. B. 2012. Long term drainage alters plant biodiversity and soil C- and N-storage. European Geosciences Union.

Understanding spatial variability of soil properties: a key step in establishing field- to farm-scale agro-ecosystem experiments

A - Papers appearing in refereed journals

Peukert, S., Bol, R., Roberts, W., Macleod, C. J. A., Murray, P. J., Dixon, E. R. and Brazier, R. E. 2012. Understanding spatial variability of soil properties: a key step in establishing field- to farm-scale agro-ecosystem experiments. Rapid Communications in Mass Spectrometry. 26 (1), pp. 2413-2421. https://doi.org/10.1002/rcm.6468

Dissolved phosphorus composition of grassland leachates following application of dairy-slurry size fractions

A - Papers appearing in refereed journals

Fuentes, B., Dixon, E. R., De La Luz Mora, M., Turner, B. L. and Bol, R. 2012. Dissolved phosphorus composition of grassland leachates following application of dairy-slurry size fractions. Journal of Plant Nutrition and Soil Science. 175 (1), pp. 78-85. https://doi.org/10.1002/jpln.201100126

Stable carbon isotope analysis of fluvial sediment fluxes over two contrasting C4-C3 semi-arid vegetation transitions

A - Papers appearing in refereed journals

Puttock, A., Dungait, J. A. J., Bol, R., Dixon, E. R., Macleod, C. J. A. and Brazier, R. E. 2012. Stable carbon isotope analysis of fluvial sediment fluxes over two contrasting C4-C3 semi-arid vegetation transitions. Rapid Communications in Mass Spectrometry. 26 (20), pp. 2386-2392. https://doi.org/10.1002/rcm.6257

The effect of agricultural land use on the nature and dynamics of subsoil

C2 - Non-edited contributions to conferences

Gregory, A. S., Dungait, J. A. J., Dixon, E. R., Bol, R. and Whitmore, A. P. 2012. The effect of agricultural land use on the nature and dynamics of subsoil. Abstracts 4th International Congress Eurosoil, Bari, 2-6 July 2012 . pp. 387

The compost of olive mill pomace: from a waste to a resource - environmental benefits of its application in olive oil groves

B - Book chapters etc edited externally

Gomez-Munoz, B., Hatch, D. J., Bol, R. and Garcia-Ruiz, R. 2012. The compost of olive mill pomace: from a waste to a resource - environmental benefits of its application in olive oil groves. in: Curkovic, S. (ed.) Sustainable development: authoritative and leading edge content for environmental management Rijeka, Croatia InTechOpen Ltd.

Soil mineral N retention and N2O emissions following combined application of 15N-labelled fertiliser and weed residues

A - Papers appearing in refereed journals

Garcia-Ruiz, R., Gomez-Munoz, B., Hatch, D. J., Bol, R. and Baggs, E. M. 2012. Soil mineral N retention and N2O emissions following combined application of 15N-labelled fertiliser and weed residues. Rapid Communications in Mass Spectrometry. 26 (20), pp. 2379-2385. https://doi.org/10.1002/rcm.6254

Denitrification potential in subsoils: a mechanism to reduce nitrate leaching to groundwater

A - Papers appearing in refereed journals

Jahangir, M. M. R., Khalil, M. I., Johnston, P., Cardenas, L. M., Hatch, D. J., Butler, M., Barrett, M., O'flaherty, V. and Richards, K. G. 2012. Denitrification potential in subsoils: a mechanism to reduce nitrate leaching to groundwater. Agriculture, Ecosystems & Environment. 147, pp. 13-23. https://doi.org/10.1016/j.agee.2011.04.015

Multi-scale approaches to investigating C dynamics in grassland systems

C2 - Non-edited contributions to conferences

Dungait, J. A. J., Bol, R., Murray, P. J., Dixon, E. R., Granger, S. J., Crotty, F. V., Hirsch, P. R., Evershed, R. and Goulding, K. W. T. 2011. Multi-scale approaches to investigating C dynamics in grassland systems. Abstracts AGU Fall Meeting 2011, San Francisco, 5-9 December 2011 .

Designing and creating the North Wyke Farm Platform

C2 - Non-edited contributions to conferences

Orr, R. J., Griffith, B. A., Rose, S., Hatch, D. J., Hawkins, J. M. B. and Murray, P. J. 2011. Designing and creating the North Wyke Farm Platform. Abstracts Catchment Science 2011, Dublin, 14-16 September 2011 . pp. 35

Carbon mineralization and distribution of nutrients within different particle-size fractions of commercially produced olive mill pomace

A - Papers appearing in refereed journals

Gomez-Munoz, B., Bol, R., Hatch, D. J. and Garcia-Ruiz, R. 2011. Carbon mineralization and distribution of nutrients within different particle-size fractions of commercially produced olive mill pomace. Bioresource Technology. 102, pp. 9997-10005. https://doi.org/10.1016/j.biortech.2011.08.009

Long-term release of carbon from grassland soil amended with different slurry particle size fractions: a laboratory incubation study

A - Papers appearing in refereed journals

Grilo, J., Bol, R., Dixon, E. R., Chadwick, D. R. and Fangueiro, D. 2011. Long-term release of carbon from grassland soil amended with different slurry particle size fractions: a laboratory incubation study. Rapid Communications in Mass Spectrometry. 25 (11), pp. 1514-1520. https://doi.org/10.1002/rcm.5008

The North Wyke Farm Platform: an opportunity for determining pathogen survival and transfers of pathogenic species from whole farm livestock systems

C2 - Non-edited contributions to conferences

Hodgson, C. J., Murray, P. J. and Hatch, D. J. 2011. The North Wyke Farm Platform: an opportunity for determining pathogen survival and transfers of pathogenic species from whole farm livestock systems. Abstracts Faecal Indicators: Problem or Solution? (FIPS 2011), Edinburgh, 6-8 June 2011 .

The North Wyke Farm Platform: a UK national capability for agri-environmental research

C1 - Edited contributions to conferences/learned societies

Hatch, D. J., Murray, P. J., Orr, R. J. and Griffith, B. A. 2011. The North Wyke Farm Platform: a UK national capability for agri-environmental research. Agricultural Ecology Research: its Role in Delivering Sustainable Farm Systems. Aspects of Applied Biology 109 . pp. 115-118

High rates of nitrogen cycling in volcanic soils from Chilean grasslands

A - Papers appearing in refereed journals

Dixon, E. R., Cardenas, L. M., Alfaro, M., Salazar, F. and Hatch, D. J. 2011. High rates of nitrogen cycling in volcanic soils from Chilean grasslands. Rapid Communications in Mass Spectrometry. 25 (11), pp. 1521-1526. https://doi.org/10.1002/rcm.4969

Gross and net rates of nitrogen mineralisation in soil amended with composted olive mill pomace

A - Papers appearing in refereed journals

Gomez-Munoz, B., Hatch, D. J., Bol, R., Dixon, E. R. and Garcia-Ruiz, R. 2011. Gross and net rates of nitrogen mineralisation in soil amended with composted olive mill pomace. Rapid Communications in Mass Spectrometry. 25 (11), pp. 1472-1478. https://doi.org/10.1002/rcm.4849

Effect of the vineyard soil management on accumulation and properties of organic matter

C2 - Non-edited contributions to conferences

Agnelli, A., Bol, R., Corti, G., Said-Pullicino, D., Dixon, E. R. and Cocco, S. 2010. Effect of the vineyard soil management on accumulation and properties of organic matter. Abstracts Stable Isotope Mass-Spectrometry User Group (SIMSUG) Meeting, Exeter, 28-30 April 2010 .

Using legume-based mixtures to enhance the nitrogen use efficiency and economic viability of cropping systems

C1 - Edited contributions to conferences/learned societies

Baddeley, J. A., Doring, T., Hatch, D. J., Marshall, A. H., Pearce, B., Roderick, S., Stobart, R. M., Storkey, J., Watson, C. A. and Wolfe, M. 2010. Using legume-based mixtures to enhance the nitrogen use efficiency and economic viability of cropping systems. Crighton, K. and Audsley, R. (ed.) Proceedings SAC and SEPA Biennial Conference: Agriculture and the Environment VIII. Climate, Water and Soil: Science, Policy and Practice, Edinburgh, 31 March-1 April 2010 . pp. 178-182

Denitrification and the N2(N2O+N2) ratios at various soil depths under grazed grassland in Ireland

C2 - Non-edited contributions to conferences

Jahangir, M. M. R., Khalil, M. I., Johnston, P., Cardenas, L. M., Hatch, D. J. and Richards, K. G. 2010. Denitrification and the N2(N2O+N2) ratios at various soil depths under grazed grassland in Ireland. Abstracts SAC and SEPA Biennial Conference. Agriculture and the Environment VIII: Climate, Water and Soil: Science, Policy and Practice, Edinburgh, 31 March-1 April 2010 . pp. 282-287

Short term N2O, CH4 and CO2 production from soil sampled at different depths and amended with a fine sized slurry fraction1

A - Papers appearing in refereed journals

Fangueiro, D., Chadwick, D. R., Dixon, E. R., Grilo, J., Walter, N. and Bol, R. 2010. Short term N2O, CH4 and CO2 production from soil sampled at different depths and amended with a fine sized slurry fraction1. Chemosphere. 81 (1), pp. 100-108. https://doi.org/10.1016/j.chemosphere.2010.06.049

The release of nitrogen following the incorporation of fertility building crops in organic farming systems

C2 - Non-edited contributions to conferences

Joynes, A., Goodlass, G., Shepherd, M. A., Roderick, S. and Hatch, D. J. 2010. The release of nitrogen following the incorporation of fertility building crops in organic farming systems. Proceedings SAC and SEPA Biennial Conference: Agriculture and the Environment VIII. Climate, Water and Soil: Science, Policy and Practice, Edinburgh, 31 March-1 April 2010 . pp. 288-293

Can subsoil denitrification reduce groundwater nitrate pollution and atmospheric N2O emissions?

C2 - Non-edited contributions to conferences

Jahangir, M. M. R., Khalil, M. I., Cardenas, L. M., Hatch, D. J., Johnston, P. and Richards, K. 2010. Can subsoil denitrification reduce groundwater nitrate pollution and atmospheric N2O emissions? European Geosciences Union (EGU).

Assessing multiple novel tracers to improve the understanding of the contribution of agricultural farm waste to diffuse water pollution

A - Papers appearing in refereed journals

Granger, S. J., Bol, R., Dixon, E. R., Naden, P. S., Old, G. H., Marsh, J. K., Bilotta, G., Brazier, R., White, S. M. and Haygarth, P. M. 2010. Assessing multiple novel tracers to improve the understanding of the contribution of agricultural farm waste to diffuse water pollution. Journal of Environmental Monitoring. 12, pp. 1159-1169. https://doi.org/10.1039/b915929k

A trial to establish the optimum 15N enrichment, amount of N and incubation time required to determine N cycling rates in carbon-rich soils using the mean pool dilution technique

C2 - Non-edited contributions to conferences

Dixon, E. R., Cardenas, L. M., Butler, M., Alfaro, M., Salazar, F. and Hatch, D. J. 2010. A trial to establish the optimum 15N enrichment, amount of N and incubation time required to determine N cycling rates in carbon-rich soils using the mean pool dilution technique. Abstracts Stable Isotope Mass-Spectrometry User Group (SIMSUG) Meeting, Exeter, 28-30 April 2010 .

Evidence for production of NO and N2O in two contrasting subsoils following the addition of synthetic cattle urine

A - Papers appearing in refereed journals

Dixon, E. R., Laughlin, R. J., Watson, C. J. and Hatch, D. J. 2010. Evidence for production of NO and N2O in two contrasting subsoils following the addition of synthetic cattle urine. Rapid Communications in Mass Spectrometry. 24 (5), pp. 519-528. https://doi.org/10.1002/rcm.4348

Measurement at the field scale of soil delta 13C and delta 15N under improved grassland

A - Papers appearing in refereed journals

Dixon, E. R., Blackwell, M. S. A., Dhanoa, M. S., Berryman, Z., De La Fuente-Martinez, N., Junquera, D., Martinez, A., Murray, P. J., Kemp, H. F., Meier-Augenstein, W., Duffy, A. and Bol, R. 2010. Measurement at the field scale of soil delta 13C and delta 15N under improved grassland. Rapid Communications in Mass Spectrometry. 24 (5), pp. 511-518. https://doi.org/10.1002/rcm.4345

Organic matter dynamics in a compost-amended anthropogenic landfill capping-soil

A - Papers appearing in refereed journals

Said-Pullicino, D., Massaccesi, L., Dixon, E. R., Bol, R. and Gigliotti, G. 2010. Organic matter dynamics in a compost-amended anthropogenic landfill capping-soil. European Journal of Soil Science. 61, pp. 35-47. https://doi.org/10.1111/j.1365-2389.2009.01198.x

Nitrogen uptake in organically managed spring sown lupins and residual effects on leaching and yield of a following winter cereal

A - Papers appearing in refereed journals

Hatch, D. J., Joynes, A. and Stone, A. 2010. Nitrogen uptake in organically managed spring sown lupins and residual effects on leaching and yield of a following winter cereal. Soil Use and Management. 26, pp. 21-26. https://doi.org/10.1111/j.1475-2743.2009.00252.x

Effect of the nitrification inhibitor dicyandiamide on microbial communities and N2O from an arable soil fertilized with ammonium sulphate

A - Papers appearing in refereed journals

Carneiro, J., Cardenas, L. M., Hatch, D. J., Trindade, H., Scholefield, D., Clegg, C. D. and Hobbs, P. J. 2010. Effect of the nitrification inhibitor dicyandiamide on microbial communities and N2O from an arable soil fertilized with ammonium sulphate. Environmental Chemistry Letters. 8, pp. 237-246. https://doi.org/10.1007/s10311-009-0212-3

Effect of tillage system and straw management on organic matter dynamics

A - Papers appearing in refereed journals

Hazarika, S., Parkinson, R., Bol, R., Dixon, E. R., Russell, P., Donovan, S. and Allen, D. 2009. Effect of tillage system and straw management on organic matter dynamics. Agronomy for Sustainable Development - ASD. 29, pp. 525-533. https://doi.org/10.1051/agro/2009024

Denitrification potential and N2/N2O ratio in subsoils under Irish grazed grassland

C2 - Non-edited contributions to conferences

Khalil, M. I., Jahangir, M. M. R., Richards, K. G., Cardenas, L. M., Butler, M., Hatch, D. J. and Johnston, P. 2009. Denitrification potential and N2/N2O ratio in subsoils under Irish grazed grassland. Abstracts 16th Nitrogen Workshop, Turin, 28 June-1 July 2009 .

Low nitrogen leaching losses in andisoils, advances in the processes involved

C2 - Non-edited contributions to conferences

Alfaro, M., Cardenas, L. M., Salazar, F., Hatch, D. J. and Ramirez, L. 2009. Low nitrogen leaching losses in andisoils, advances in the processes involved. Abstracts 16th Nitrogen Workshop, Turin, 28 June-1 July 2009 .

Towards a national research facility at North Wyke

C1 - Edited contributions to conferences/learned societies

Beaumont, D. A., Hatch, D. J., Bol. R., Murray, P. J. and Firbank, L. G. 2008. Towards a national research facility at North Wyke. Crighton, K. and Audsley, R. (ed.) Agriculture and the environment VII: Land management in a changing environment: proceedings of the SAC and SEPA Biennial Conference.. pp. 202

Large old trees influence patterns of delta13C and delta15N in forests

A - Papers appearing in refereed journals

Weber, P., Bol, R., Dixon, E. R. and Bardgett, R. D. 2008. Large old trees influence patterns of delta13C and delta15N in forests. Rapid Communications in Mass Spectrometry. 22, pp. 1627-1630. https://doi.org/10.1002/rcm.3433

Use of carbon isotope analysis to understand semi-arid erosion dynamics and long-term semi-arid land degradation

A - Papers appearing in refereed journals

Turnbull, L., Brazier, R. E., Wainwright, J., Dixon, E. R. and Bol, R. 2008. Use of carbon isotope analysis to understand semi-arid erosion dynamics and long-term semi-arid land degradation. Rapid Communications in Mass Spectrometry. 22, pp. 1697-1702. https://doi.org/10.1002/rcm.3514

Long-term influence of manure and mineral nitrogen applications on plant and soil 15N and 13C values from the Broadbalk Wheat Experiment

A - Papers appearing in refereed journals

Senbayram, M., Dixon, E. R., Goulding, K. W. T. and Bol, R. 2008. Long-term influence of manure and mineral nitrogen applications on plant and soil 15N and 13C values from the Broadbalk Wheat Experiment. Rapid Communications in Mass Spectrometry. 22 (11), pp. 1735-1740. https://doi.org/10.1002/rcm.3548

Changes in chemical and biochemical soil properties induced by 11-yr repeated additions of different organic materials in maize-based forage systems

A - Papers appearing in refereed journals

Monaco, S., Hatch, D. J., Sacco, D., Bertora, C. and Grignani, C. 2008. Changes in chemical and biochemical soil properties induced by 11-yr repeated additions of different organic materials in maize-based forage systems. Soil Biology and Biochemistry. 40 (3), pp. 608-615. https://doi.org/10.1016/j.soilbio.2007.09.015

Rare earth element enhanced slurries for erosion and leaching studies in grasslands

C2 - Non-edited contributions to conferences

Bol, R., Dixon, E. R., Senbayram, M., Gimbert, L., Stevens, C. and Quinton, J. 2007. Rare earth element enhanced slurries for erosion and leaching studies in grasslands. Farrimond, P. (ed.) International meeting on organic geochemistry, Torquay, 9-14 September 2007. pp. 947-948

Earthworm responses to long term agricultural management practices: Spatial relationships with soil properties

A - Papers appearing in refereed journals

Blackshaw, R. P., Donovan, S. E., Hazarike, S., Bol, R. and Dixon, E. R. 2007. Earthworm responses to long term agricultural management practices: Spatial relationships with soil properties. European Journal Of Soil Biology. 43 (Suppl 1), pp. S171-S175. https://doi.org/10.1016/j.ejsobi.2007.08.014

Exploring delta 13C signals to further understanding or erosion dynamics in a semi arid C4 to C3 vegetation transition in New Mexico

C1 - Edited contributions to conferences/learned societies

Turnbull, L., Brazier, R., Wainwright, J., Dixon, E. R. and Bol, R. 2007. Exploring delta 13C signals to further understanding or erosion dynamics in a semi arid C4 to C3 vegetation transition in New Mexico. Annual meeting, Stable Isotope Mass Spectrometry User Group (SIMSUG 2007), Newcastle University.

Comparing losses of phosphorus leached from three legume species as components of grassland systems grazed by sheep

C1 - Edited contributions to conferences/learned societies

Headon, D. M., Dixon, E. R., Stone, A. C. and Scholefield, D. 2007. Comparing losses of phosphorus leached from three legume species as components of grassland systems grazed by sheep. Hopkins, J. J., Duncan, A. J., McCracken, D. I., Peel, S. and Tallowin, J. R. B. (ed.) 'High Value Grassland: providing biodiversity, a clean environment and premium products': Proceedings BGS/BES/BSAS Conference, Keele University, Staffs, 17-19 April 2007. British Grassland Society Occasional Symposium, 38. pp. 237-240

Quantification of priming and CO2 emission sources following the application of different slurry particle size fractions to a grassland soil

A - Papers appearing in refereed journals

Fangueiro, D., Chadwick, D. R., Dixon, E. R. and Bol, R. 2007. Quantification of priming and CO2 emission sources following the application of different slurry particle size fractions to a grassland soil. Soil Biology and Biochemistry. 39 (10), pp. 2608-2620. https://doi.org/10.1016/j.soilbio.2007.05.012

Ken's meadow update

G - Articles in popular magazines and other technical publications

Hatch, D. J., Clegg, C. D. and Beaumont, D. A. 2007. Ken's meadow update.

A comparison of nitrogen processes and herbage yield from old and reseeded pasture

C2 - Non-edited contributions to conferences

Jewkes, E. C., Scholefield, D. and Hatch, D. J. 2007. A comparison of nitrogen processes and herbage yield from old and reseeded pasture. 14th Symposium of the European Grassland Federation. 'Permanent and temporary grassland: plant, environment and economy.' Gent, Belgium, 3-5 September 2007.

Impacts of grassland renovation on nitrogen and carbon cycling and losses in ley-arable rotations

C1 - Edited contributions to conferences/learned societies

Vertes, F., Hatch, D. J., Velthof, G. L., Taube, F., Laurent, F., Loiseau, P. and Recous, S. 2007. Impacts of grassland renovation on nitrogen and carbon cycling and losses in ley-arable rotations. 14th Symposium of the European Grassland Federation. 'Permanent and temporary grassland: plant, environment and economy.' Gent, Belgium, 3-5 September 2007. pp. 227-246

The effect of cutting, mulching and applications of farmyard manure on nitrogen fixation in a red clover/grass sward

A - Papers appearing in refereed journals

Hatch, D. J., Goodlass, G., Joynes, A. and Shepherd, M. A. 2007. The effect of cutting, mulching and applications of farmyard manure on nitrogen fixation in a red clover/grass sward. Bioresource Technology. 98 (17), pp. 3243-3248. https://doi.org/10.1016/j.biortech.2006.07.017

A method for predicting N offtake in reseeded grassland based on measurements relating to soil N supply

C1 - Edited contributions to conferences/learned societies

Hatch, D. J., Hopkins, A. and Velthof, G. L. 2007. A method for predicting N offtake in reseeded grassland based on measurements relating to soil N supply. Conijn, J. G. and Taube, F. (ed.) Grassland resowing and grass-arable rotations. Third and fourth workshops of the EGF-Working Group 'Grassland resowing and grass-arable rotations' Report No. 3. Plant Research International B.V., Wageningen. pp. 67-71

Extending the working hypothesis on grassland resowing to include grass-arable rotations and organic farming

C1 - Edited contributions to conferences/learned societies

Hatch, D. J. and Hopkins, A. 2007. Extending the working hypothesis on grassland resowing to include grass-arable rotations and organic farming. Conijn, J. G. and Taube, F. (ed.) Grassland resowing and grass-arable rotations. Third and fourth workshops of the EGF-Working Group 'Grassland resowing and grass-arable rotations' Report No. 3. Plant Research International B.V., Wageningen. pp. 3-6

Comparison between two field methods for assessing net N mineralization during spring growth of maize

C1 - Edited contributions to conferences/learned societies

Monaco, S., Hatch, D. J., Sacco, D., Bertora, C. and Grignani, C. 2006. Comparison between two field methods for assessing net N mineralization during spring growth of maize. Book of Proceedings, IX Congress of the European Society for Agronomy, Bibliotheca Fragmenta Agronomica, Warszawa, Poland, 4-7 September 2006.

Lupins in sustainable agriculture

D1 - Technical reports: non-confidential

Hatch, D. J. 2006. Lupins in sustainable agriculture.

An assessment of nitrogen fixation in 'organically managed' spring-sown lupins and leaching under a following winter cereal

C1 - Edited contributions to conferences/learned societies

Joynes, A., Hatch, D. J. and Stone, A. C. 2006. An assessment of nitrogen fixation in 'organically managed' spring-sown lupins and leaching under a following winter cereal. Atkinson, C., Ball, B., Davies, D. H. K., Rees, R., Russell, G., Stockdale, E. A., Watson, C. A., Walker, R. and Younie, D. (ed.) In conjunction with COR - the Colloquium of Organic Researchers Conference, Edinburgh Conference Centre, Heriot-Watt University, Edinburgh, 18-20 September 2006.

Making the most of soil nitrogen

C1 - Edited contributions to conferences/learned societies

Goodlass, G., Hatch, D. J., Shepherd, M. A., King, J. A., Cuttle, S. P., Roderick, S. and Briggs, S. 2006. Making the most of soil nitrogen. Atkinson, C., Ball, B., Davies, D. H. K., Rees, R., Russell, G., Stockdale, E. A., Watson, C. A., Walker, R. and Younie, D. (ed.) In conjunction with COR - the Colloquium of Organic Researchers Conference, Edinburgh Conference Centre, Heriot-Watt University, Edinburgh, 18-20 September 2006.

Leaching losses of N, P and K from grazed legume based swards - some preliminary results

C1 - Edited contributions to conferences/learned societies

Dixon, E. R., Stone, A. C., Scholefield, D. and Hatch, D. J. 2006. Leaching losses of N, P and K from grazed legume based swards - some preliminary results. Proceedings of the XX International grassland congress, Oxford Satellite Workshop, 3rd - 6th July 2005. pp. p104

Lupins in sustainable agriculture: nutrient losses following grain harvest

C1 - Edited contributions to conferences/learned societies

Hatch, D. J., Joynes, A., Stone, A. C., Scholefield, D. and Jones, R. 2006. Lupins in sustainable agriculture: nutrient losses following grain harvest. Lloveras, J., Gonzalez-Rodriguez, A., Vazquez-Yanez, O., Pineiro, J., Santamaria, O., Olea, L. and Poblaciones, M. J. (ed.) Sustainable Grassland Productivity [Proceedings of the 21st General Meeting of the European Grassland Federation, Badajoz, Spain, 3-6 April 2006].

Nitrogen losses to surface and ground waters

D1 - Technical reports: non-confidential

Dixon, E. R. and Hatch, D. J. 2005. Nitrogen losses to surface and ground waters.

Crop responses

D1 - Technical reports: non-confidential

Hatch, D. J. 2005. Crop responses.

Lupins in sustainable agriculture

D1 - Technical reports: non-confidential

Hatch, D. J. 2005. Lupins in sustainable agriculture.

Mid term effects of annual applications of pig manure or pig slurry on C and N turnover in cultivated soils

C2 - Non-edited contributions to conferences

Morvan, T., Recous, S. and Hatch, D. J. 2005. Mid term effects of annual applications of pig manure or pig slurry on C and N turnover in cultivated soils. Porcherie-verte Workshop, Paris, 25-27 May 2005.

Effect of soil erosion on surface water quality: correlation between turbidity and nutrient concentrations

C2 - Non-edited contributions to conferences

Hatch, D. J., Butler, P. J. and Haygarth, P. M. 2005. Effect of soil erosion on surface water quality: correlation between turbidity and nutrient concentrations. 'N management in agrosystems in relation to the Water Framework Directive', 14th N-Workshop, Maastricht, Netherlands, 24-26 October 2005. pp. p109

Scientific research plays a vital role

G - Articles in popular magazines and other technical publications

Hatch, D. J. 2005. Scientific research plays a vital role. Western Morning News. 28 February, pp. 8-9.

Field experiments to help optimise nitrogen fixation by legumes on organic farms

C1 - Edited contributions to conferences/learned societies

Joynes, A., Hatch, D. J., Stone, A., Cuttle, S., Goodlass, G. and Roderick, S. 2005. Field experiments to help optimise nitrogen fixation by legumes on organic farms. Jarvis, S. C., Murray, P. J. and Roker, J. A. (ed.) XX International Grassland Congress, Oxford Satellite Workshop, "Optimisation of nutrient cycling and soil quality for sustainable grasslands", 3rd - 6th July, 2005. Wageningen Academic Publishers, Wageningen, Netherlands. pp. p67

Laboratory study of the effects of two nitrification inhibitors on greenhouse gas emissions from a slurry-treated arable soil : impact of diurnal temperature cycle

A - Papers appearing in refereed journals

Hatch, D. J., Trindade, H., Cardenas, L. M., Carneiro, J., Hawkins, J. M. B., Scholefield, D. and Chadwick, D. R. 2005. Laboratory study of the effects of two nitrification inhibitors on greenhouse gas emissions from a slurry-treated arable soil : impact of diurnal temperature cycle. Biology And Fertility Of Soils. 41 (4), pp. 225-232. https://doi.org/10.1007/s00374-005-0836-9

Nitrogen budgets for three cropping systems fertilised with cattle manure

A - Papers appearing in refereed journals

Salazar, F. J., Chadwick, D. R., Pain, B. F., Hatch, D. J. and Owen, E. 2005. Nitrogen budgets for three cropping systems fertilised with cattle manure. Bioresource Technology. 96 (2), pp. 235-245. https://doi.org/10.1016/j.biortech.2004.05.013

Nitrogen management for profitable farming with minimal environmental impact: the challenge for mixed farms in the Cotswold Hills, England

A - Papers appearing in refereed journals

Leach, K. A., Allingham, K. D., Conway, J. S., Goulding, K. W. T. and Hatch, D. J. 2004. Nitrogen management for profitable farming with minimal environmental impact: the challenge for mixed farms in the Cotswold Hills, England. International Journal of Agricultural Sustainability. 2, pp. 21-32. https://doi.org/10.1080/14735903.2004.9684564

Lupins in sustainable agriculture

D1 - Technical reports: non-confidential

Hatch, D. J. 2004. Lupins in sustainable agriculture.

The impact of long-term nitrogen fertiliser management regime on nitrifier diversity and nitrification kinetics in grassland soils

C1 - Edited contributions to conferences/learned societies

Clegg, C. D., Hatch, D. J., Jarvis, S. C., Turner, S., Freitag, T. and Prosser, J. I. 2004. The impact of long-term nitrogen fertiliser management regime on nitrifier diversity and nitrification kinetics in grassland soils. 10th International Symposium on Microbial Ecology, Cancun, Mexico, August 2004.

Organic farmers' day focuses on maintaining soil fertility

G - Articles in popular magazines and other technical publications

Hatch, D. J. and Jarvis, S. C. 2004. Organic farmers' day focuses on maintaining soil fertility. BBSRC Business. (October), p. 28.

Novel legume trials

C2 - Non-edited contributions to conferences

Roderick, S., Hatch, D. J., Joynes, A. and Stone, A. 2004. Novel legume trials. Poster Organic Farmers Day, IGER North Wyke, Devon, 18th August 2004.

Experiments to determine N accumulation under fertility building crops

C2 - Non-edited contributions to conferences

Joynes, A., Hatch, D. J., Stone, A. C., Cuttle, S. P., Goodlass, G. and Roderick, S. 2004. Experiments to determine N accumulation under fertility building crops. Poster Organic Farmers Day, IGER North Wyke, Devon, 18th August 2004.

Measurement of N accumulation under legumes and subsequent supply to crops on selected organic farms

C2 - Non-edited contributions to conferences

Joynes, A., Hatch, D. J., Stone, A., Cuttle, S., Goodlass, G. and Roderick, S. 2004. Measurement of N accumulation under legumes and subsequent supply to crops on selected organic farms. Poster Organic Farmers Day, IGER North Wyke, Devon, 18th August 2004.

Field experiments to determine N accumulation under fertility building crops

C2 - Non-edited contributions to conferences

Joynes, A., Hatch, D. J., Stone, A. C., Cuttle, S. P., Goodlass, G. and Roderick, S. 2004. Field experiments to determine N accumulation under fertility building crops. Poster 11th International Conference of the FAO ESCORENA Network on Recycling of Agricultural, Municipal and Industrial Residues in Agriculture (RAMIRAN), Murcia, Spain, 6-9 October 2004.

Factors affecting nitrogen fixation by red clover

G - Articles in popular magazines and other technical publications

Hatch, D. J., Joynes, A. and Stone, A. C. 2004. Factors affecting nitrogen fixation by red clover. Organic Studies Centre - Technical Bulletin. August (5), pp. 1-2.

The supply of nitrogen from fertility building crops: results from monitoring of twelve organic farms

G - Articles in popular magazines and other technical publications

Hatch, D. J. and Goodlass, G. 2004. The supply of nitrogen from fertility building crops: results from monitoring of twelve organic farms. Organic Studies Centre - Technical Bulletin. December (6), pp. 1-3.

Novel legumes

G - Articles in popular magazines and other technical publications

Roderick, S., Hatch, D. J., Joynes, A. and Stone, A. C. 2004. Novel legumes. Organic Studies Centre - Technical Bulletin. December (6), pp. 3-4.

Soil fertility building crops in organic farming

C1 - Edited contributions to conferences/learned societies

Hatch, D. J., Joynes, A., Stone, A. C. and Goodlass, G. 2004. Soil fertility building crops in organic farming. 11th International Conference of the FAO ESCORENA Network on Recycling of Agricultural, Municipal and Industrial Residues in Agriculture (RAMIRAN), Murcia, Spain, 6-9 October 2004.

Effects of grassland renovation on N and C cycles and soil quality dynamics

C1 - Edited contributions to conferences/learned societies

Vertes, F., Hatch, D. J., Velthof, G. L., Abiven, S., Hopkins, A. and Springob, G. 2004. Effects of grassland renovation on N and C cycles and soil quality dynamics. Luscher, A., Jeangros, B., Kessler, W., Huguenin, O., Lobsiger, M., Millar, N. and Suter, D. (ed.) Land use systems on grassland dominated regions. European Grassland Federation (EGF) 20th General Meeting, Luzern, Switzerland, 21-24 June 2004.

Prediction of N offtake in resown grassland based on temperature and soil chemical and physical characteristics

C1 - Edited contributions to conferences/learned societies

Hatch, D. J., Hopkins, A. and Velthof, G. L. 2004. Prediction of N offtake in resown grassland based on temperature and soil chemical and physical characteristics. Luscher, A., Jeangros, B., Kessler, W., Huguenin, O., Lobsiger, M., Millar, N. and Suter, D. (ed.) Land use systems on grassland dominated regions. European Grassland Federation (EGF) 20th General Meeting, Luzern, Switzerland, 21-24 June 2004.

Ammonium-N losses from agriculture

C1 - Edited contributions to conferences/learned societies

Hatch, D. J., Chadwick, D. R., Smith, K. A. and Chambers, B. J. 2004. Ammonium-N losses from agriculture. Lewis, D. and Gairns, L. (ed.) Proceedings 'Agriculture and the Environment,Water Framework Directive and Agriculture'. SEPA/SAC Biennial Conference, Edinburgh, 24-25 March 2004. pp. 165-173

Controlling nitrogen flows and losses

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

Hatch, D. J., Chadwick, D. R. and Jarvis, S. C. Roker, J. A. (ed.) 2004. Controlling nitrogen flows and losses. Wageningen Academic Publishers, Wageningen, Netherlands.

Determination of N source in denitrification studies using stable isotope techniques

C1 - Edited contributions to conferences/learned societies

Murray, P. J., Dixon, E. R., Stevens, R., Laughlin, R. and O'Prey, K. 2004. Determination of N source in denitrification studies using stable isotope techniques. Hatch, D. J., Chadwick, D., Jarvis, S. C. and Roker, J. A. (ed.) 'Controlling N Flows and Losses'. Proceedings 12th Nitrogen Workshop, University of Exeter, 21-24 September 2003. Wageningen Academic Publishers, Wageningen, Netherlands. pp. 347-348

Transformations of nitrogen at the interface between the topsoil and an impervious clay subsoil

A - Papers appearing in refereed journals

Murray, P. J., Hatch, D. J., Dixon, E. R., Granger, S. J., O'Prey, C., Stevens, R. J., Laughlin, R. J. and Jarvis, S. C. 2004. Transformations of nitrogen at the interface between the topsoil and an impervious clay subsoil. Water, Air, & Soil Pollution: Focus. 4 (6), pp. 45-52. https://doi.org/10.1007/s11267-005-3012-1

Denitrification potential in a grassland subsoil: effect of carbon substrates

A - Papers appearing in refereed journals

Murray, P. J., Hatch, D. J., Dixon, E. R., Stevens, R. J., Laughlin, R. J. and Jarvis, S. C. 2004. Denitrification potential in a grassland subsoil: effect of carbon substrates. Soil Biology and Biochemistry. 36 (3), pp. 545-547. https://doi.org/10.1016/j.soilbio.2003.10.020

Gross nitrogen fluxes in soil: theory, measurement and application of 15N pool dilution techniques

A - Papers appearing in refereed journals

Murphy, D. V., Recous, S., Stockdale, E. A., Fillery, I. R. P., Jensen, L. S., Hatch, D. J. and Goulding, K. W. T. 2003. Gross nitrogen fluxes in soil: theory, measurement and application of 15N pool dilution techniques. Advances in Agronomy. 79, pp. 69-117. https://doi.org/10.1016/S0065-2113(02)79002-0

Ammonium - N losses from agriculture

D1 - Technical reports: non-confidential

Chadwick, D. R., Hatch, D. J. and Smith, K. A. 2003. Ammonium - N losses from agriculture.

N transformations at a sub-surface clay interface: a study using undisturbed, in situ soil lysimeters

C1 - Edited contributions to conferences/learned societies

Murray, P. J., Dixon, E. R., Hatch, D. J., Granger, S. J. and Laughlin, R. 2003. N transformations at a sub-surface clay interface: a study using undisturbed, in situ soil lysimeters. Abstracts 12th N Workshop, Controlling N flows and losses, Exeter, Devon, UK, 21-24 September 2003.

Determination of N source in denitrification studies using stable isotope techniques

C2 - Non-edited contributions to conferences

Murray, P. J., Hatch, D. J., Dixon, E. R., Stevens, R., Laughlin, R., O'Prey, K. and Jarvis, S. C. 2003. Determination of N source in denitrification studies using stable isotope techniques. Abstracts 12th N Workshop, Controlling N flows and losses, Exeter, Devon, UK, 21-24 September 2003.

Field experiments to determine N accumulation under fertility building crops

C2 - Non-edited contributions to conferences

Joynes, A., Hatch, D. J., Stone, A. C., Cuttle, S. P., Goodlass, G. and Roderick, S. 2003. Field experiments to determine N accumulation under fertility building crops. Abstracts 12th N Workshop, Controlling N flows and losses, Exeter, Devon, UK, 21-24 September 2003.

Nitrogen balances over 7 years on a mixed farm in the Cotswolds

C2 - Non-edited contributions to conferences

Leach, K. A., Goulding, K. W. T., Hatch, D. J., Conway, J. S. and Allingham, K. 2003. Nitrogen balances over 7 years on a mixed farm in the Cotswolds. Abstracts 12th N Workshop, Controlling N flows and losses, Exeter, Devon, UK, 21-24 September 2003.

Assessing the impact of nitrogen fertilizer management regime on nitrifier diversity and nitrification kinetics in grassland soil

C2 - Non-edited contributions to conferences

Clegg, C. D., Frietag, T. E., Hatch, D. J., Jarvis, S. C., Lowe, E. and Prosser, J. I. 2003. Assessing the impact of nitrogen fertilizer management regime on nitrifier diversity and nitrification kinetics in grassland soil. Biological Diversity and Function in Soils. Abstracts. British Ecological Society Annual Symposium, Lancaster, 25-27 March 2003.

Return of the Marbled White

G - Articles in popular magazines and other technical publications

Hatch, D. J., Tallowin, J. R. B. and Smith, R. E. N. 2003. Return of the Marbled White. Butterfly Conservation, Devon Branch Newsletter. 56, pp. 16-18.

Soil N availability: a simple measure of soil fertility

C2 - Non-edited contributions to conferences

Hatch, D. J. and Antil, R. S. 2003. Soil N availability: a simple measure of soil fertility. Poster International conference 'Mechanisms and regulation of organic matter stabilization in soils', Schloss Hohenhammer, Munich, Germany, 6-10 October 2003.

Nitrogen cycling in mixed farming systems. The Coates Farm Study 1995-2003

C2 - Non-edited contributions to conferences

Conway, J., Goulding, K. W. T. and Hatch, D. J. 2003. Nitrogen cycling in mixed farming systems. The Coates Farm Study 1995-2003. Poster Coates Farm Open Afternoon, 26 June 2003.

Determination of N source in denitrification studies using stable isotope techniques

C2 - Non-edited contributions to conferences

Murray, P. J., Hatch, D. J., Dixon, E. R., Stevens, R. J., Laughlin, R. J. and Jarvis, S. C. 2003. Determination of N source in denitrification studies using stable isotope techniques. Annual meeting of the Stable Isotope Mass Spectrometry Users Group (SIMSUG) 2003, Bristol, UK, 14-16 April 2003.

Using a system of undisturbed, in situ soil lysimeters to determine nitrogen transformations in a sub-surface clay interface

C2 - Non-edited contributions to conferences

Dixon, E. R., Ordonez Gaete, C. I., Granger, S. J., Hatch, D. J., Murray, P. J., O'Prey, K. and Stevens, R. J. 2003. Using a system of undisturbed, in situ soil lysimeters to determine nitrogen transformations in a sub-surface clay interface. Poster 7th British Grassland Society (BGS) Research Conference, Aberystwyth, 1-3 September 2003. pp. 57-58

Nitrogen and phosphorus cycling in grass-to-grass resowing and grass-arable rotations

C2 - Non-edited contributions to conferences

Hatch, D. J., Hopkins, A. and Velthof, G. L. 2003. Nitrogen and phosphorus cycling in grass-to-grass resowing and grass-arable rotations. 'Grassland resowing and grass-arable crop rotations'. Workshop European Grassland Federation (EGF) Working Group, University of Kiel, Germany, 27-28 February 2003.

Grassland in Europe

A - Papers appearing in refereed journals

Wilkins, R. J., Hopkins, A. and Hatch, D. J. 2003. Grassland in Europe. Grassland Science (Japan). 49 (3), pp. 258-266.

Gross nitrogen fluxes in soil: Theory, measurement and application of N-15 pool dilution techniques

B - Book chapters etc edited externally

Murphy, D. V., Recous, S., Stockdale, E. A., Fillery, I., Jensen, L., Hatch, D. J. and Goulding, K. W. T. 2003. Gross nitrogen fluxes in soil: Theory, measurement and application of N-15 pool dilution techniques. in: Advances in Agronomy B.

Verifying the nitrification to immobilisation ratio (N/I ) as a key determinant of potential nitrate in grassland and arable soils

A - Papers appearing in refereed journals

Stockdale, E. A., Hatch, D. J., Murphy, D. V., Ledgard, S. F. and Watson, C. J. 2002. Verifying the nitrification to immobilisation ratio (N/I ) as a key determinant of potential nitrate in grassland and arable soils. Agronomie. 22, pp. 831-838.

Gross and net rates of mineralization and microbial activity in permanent pastures following fertilizer applications at different time intervals

C2 - Non-edited contributions to conferences

Hatch, D. J., Sprosen, M. S., Jarvis, S. C. and Ledgard, S. F. 2002. Gross and net rates of mineralization and microbial activity in permanent pastures following fertilizer applications at different time intervals. Annual Meeting Stable Isotope Mass Spectrometry Users Group (SIMSUG) 2002, Belfast, N Ireland, 17-18 January 2002.

A method to investigate the transfer of N species in the subsoil using one metre deep soil columns

C2 - Non-edited contributions to conferences

Dixon, E. R., Hatch, D. R., Murray, P. J., Jarvis, S. C., O'Prey, K., Laughlin, R. J. and Stevens, R. J. 2002. A method to investigate the transfer of N species in the subsoil using one metre deep soil columns. Abstract 'Soils and Environmental Quality'. British Society of Soil Science Conference, University of Plymouth, Seale-Hayne Campus, 8-11 September 2002.

Nitrate leaching following cultivation of long ley grassland

C2 - Non-edited contributions to conferences

Leach, K. A., Conway, J. S., Goulding, K. W. T. and Hatch, D. J. 2002. Nitrate leaching following cultivation of long ley grassland. Abstract 'Soils and Environmental Quality'. British Society of Soil Science Conference, University of Plymouth, Seale-Hayne Campus, 8-11 September 2002.

Nitrate leaching from grassland and maize cropping systems fertilised with cattle manures

C2 - Non-edited contributions to conferences

Salazar, F. J., Hatch, D. J., Chadwick, D. R., Pain, B. F. and Owen, E. 2002. Nitrate leaching from grassland and maize cropping systems fertilised with cattle manures. Abstract, 'Soils and Environmental Quality'. British Society of Soil Science Conference, University of Plymouth, Seale-Hayne Campus, 8-11 September 2002.

Transfer and transformation of N species in 1 M deep soil columns

C2 - Non-edited contributions to conferences

Dixon, E. R., Hatch, D. R., Murray, P. J., Laughlin, R. J., Stevens, R. J., Jarvis, S. C. and O'Prey, K. 2002. Transfer and transformation of N species in 1 M deep soil columns. NERC, Gane meeting, Nottingham University, 3-5 September 2002..

Influence of urine and components of urine on N2O emissions from grassland soils

C2 - Non-edited contributions to conferences

Dixon, E. R., Hatch, D. J., Murray, P. J., Laughlin, R. J., Stevens, R. J., Jarvis, S. C. and O'Prey, K. 2002. Influence of urine and components of urine on N2O emissions from grassland soils. NERC, Gane Meeting, Nottingham University, 3-5 September 2002.

Leaching losses of nitrogen following autumn applications of farmyard manure

C2 - Non-edited contributions to conferences

Hatch, D. J., Stone, A. and Parkinson, A. 2002. Leaching losses of nitrogen following autumn applications of farmyard manure. The Royal Show, Stoneleigh, 1-4 July 2002.

The use of 15N to trace plant uptake of labelled dairy slurry injected into the soil: influence of the new nitrification inhibitor, DMPP

C2 - Non-edited contributions to conferences

Hatch, D. J., Chadwick, D. R., Bol, R. and King, R. 2002. The use of 15N to trace plant uptake of labelled dairy slurry injected into the soil: influence of the new nitrification inhibitor, DMPP. Annual Meeting of the Stable Isotope Mass Spectrometry Users Group, Belfast, UK, 17-18 January 2002.

Coates Farm Study: reducing nitrogen emissions to the environment

C2 - Non-edited contributions to conferences

Goulding, K. W. T., Leach, K., Cartwright, R., Hatch, D. J., Conway, J., Jarvis, S. C. and Webster, C. P. 2002. Coates Farm Study: reducing nitrogen emissions to the environment. Poster 'Managing the environmental effects of agriculture'. SCI Crop Protection Group/Agriculture and Environment Group meeting, Warwick University, 25-26 March 2002.

Nitrogen and phosphorus cycling

C1 - Edited contributions to conferences/learned societies

Hatch, D. J. 2002. Nitrogen and phosphorus cycling. Conijn, J. G., Velthof, G. L. and Taube, F. (ed.) Grassland sowing and grass-arable crop rotations. International Workshop on Agricultural and Environmental Issues, Wageningen, The Netherlands, 18-19 April 2002. pp. 107-110

Grassland resowing and grass-arable rotations in the United Kingdom: agricultural and environmental issues

C1 - Edited contributions to conferences/learned societies

Hatch, D. J., Easson, L., Goulding, K. W. T., Haygarth, P. M., Shepherd, M. A. and Watson, C. 2002. Grassland resowing and grass-arable rotations in the United Kingdom: agricultural and environmental issues. Conijn, J. G., Velthof, G. L. and Taube, F. (ed.) Grassland resowing and grass-arable crop rotations. Proceedings International Workshop on Agricultural and Environmental Issues, Wageningen, the Netherlands, 18-19 April 2002. pp. 93-105

Nitrogen budgets for three cropping systems fertilised with cattle manure

C1 - Edited contributions to conferences/learned societies

Salazar, F. J., Chadwick, D. R., Pain, B. F., Hatch, D. J. and Owen, E. 2002. Nitrogen budgets for three cropping systems fertilised with cattle manure. Venglovsky, J. and Greserova, G. (ed.) Proceedings 10th International Conference of the FAO (Recycling of Agricultural, Municipal and Industrial Residues in Agriculture Network) RAMIRAN 2002 on 'Hygiene Safety', Strbske Pleso, High Tatras, Slovak Republic, 14-18 May 2002. pp. 157-160

Leaching losses of nitrogen following autumn applications of farmyard manure

C1 - Edited contributions to conferences/learned societies

Hatch, D. J., Stone, A. and Parkinson, A. 2002. Leaching losses of nitrogen following autumn applications of farmyard manure. Venglovsky, J. and Greserova, G. (ed.) Proceedings 10th International Conference of the European cooperative network on recycling of agricultural, municipal and industrial residues in agriculture (RAMIRAN), Strbske Pleso, High Tatras, Slovak Republic, 14-18 May 2002. pp. 449-450

Is the productivity of organic farms restricted by the supply of available nitrogen?

A - Papers appearing in refereed journals

Berry, P. M., Sylvester-Bradley, R., Philipps, L., Hatch, D. J., Cuttle, S. P., Rayns, F. W. and Gosling, P. 2002. Is the productivity of organic farms restricted by the supply of available nitrogen? Soil Use and Management. 18 (Suppl.), pp. 248-255. https://doi.org/10.1111/j.1475-2743.2002.tb00266.x

Use of labelled nitrogen to measure gross and net rates of mineralization and microbial activity in permanent pastures following fertilizer applications at different time intervals

A - Papers appearing in refereed journals

Hatch, D. J., Sprosen, M. S., Jarvis, S. C. and Ledgard, S. F. 2002. Use of labelled nitrogen to measure gross and net rates of mineralization and microbial activity in permanent pastures following fertilizer applications at different time intervals. Rapid Communications in Mass Spectrometry. 16 (23), pp. 2172-2178.

Verifying the nitrification to immobilisation ratio as a key determinant of potential nitrate loss in arable and grassland soils

A - Papers appearing in refereed journals

Stockdale, E. A., Hatch, D. J., Murphy, D. V., Ledgard, S. F. and Watson, C. J. 2002. Verifying the nitrification to immobilisation ratio as a key determinant of potential nitrate loss in arable and grassland soils. Agronomie. 22 (7-8), pp. 831-838.

Nitrogen

B - Book chapters etc edited externally

Hatch, D. J., Goulding, K. W. T. and Murphy, D. V. 2002. Nitrogen. in: Haygarth, P. M. and Jarvis, S. C. (ed.) Agriculture, Hydrology and Water Quality CABI International, Wallingford, Oxon (CABI). pp. 7-27

Impact of invertebrate root herbivory on N fluxes in white clover

C1 - Edited contributions to conferences/learned societies

Murray, P. J., Hatch, D. J. and Cliquet, J. B. 2002. Impact of invertebrate root herbivory on N fluxes in white clover. Fisher, G. and Frankow-Lindberg, B. (ed.) Lowland Grasslands of Europe: Utilisation and Development. Proceedings FAO/CIHEAM European Cooperative Research Network on Pastures and Fodder Crop Production, Subnetwork on Lowland Grassland Research Conference, La Corcina, Spain, 13-16 October 1998.

Over-winter leaching of nitrogen associated with different cropping systems

C2 - Non-edited contributions to conferences

Donaghy, D., Hatch, D. J., Warman, K. D., Goulding, K. W. T. and Conway, J. S. 2001. Over-winter leaching of nitrogen associated with different cropping systems. Proceedings 11th Nitrogen Workshop, Reims, 9-12 September 2001 .

Nitrous oxide emissions from injected 15N-labelled cattle slurry into grassland soil as affected by DMPP nitrification inhibitor

C1 - Edited contributions to conferences/learned societies

Dittert, K., Bol, R., Chadwick, D. R. and Hatch, D. J. 2001. Nitrous oxide emissions from injected 15N-labelled cattle slurry into grassland soil as affected by DMPP nitrification inhibitor. Horst, W. J., Schenk, M. K., Burkert, A., Claassen, N., Flessa, H., Frommer, W. B., Goldbach, H. E. and Et Al (ed.) Plant nutrition: food security and sustainability of agro-ecosystems through basic and applied research. 14th International Plant Nutrition Colloquium, Hannover, Germany. Kluwer Academic Publishers, Dordrecht, Netherlands. pp. 768-769

Comparing organic soils with conventionally farmed soils

C2 - Non-edited contributions to conferences

Hatch, D. J., Shepherd, M. A. and Hatley, D. 2001. Comparing organic soils with conventionally farmed soils. Poster Presentation. Soil fertility in organic farming - fundamentally different? SCI Agriculture and Environment Group with support from Crop Protection Group, 13 November 2001.

Assessing soil fertility: a simple measurement of soil N availability

C2 - Non-edited contributions to conferences

Hatch, D. J. and Lovell, R. D. 2001. Assessing soil fertility: a simple measurement of soil N availability. Poster Presentation. Nutrients in Organic Agriculture Group, Organic Research Update: Soils and nutrient cycling research. IACR-Rothamsted, June 2001.

Do organically farmed soils differ from conventionally farmed soils?

C2 - Non-edited contributions to conferences

Hatch, D. J., Lovell, R. D., Shepherd, M. A. and Hatley, D. 2001. Do organically farmed soils differ from conventionally farmed soils? Abstract 11th Nitrogen Workshop, Reims, France, 9-12 September 2001. pp. 299-300

Over-wintering leaching of nitrogen associated with different cropping systems

C2 - Non-edited contributions to conferences

Donaghy, D., Hatch, D. J., Warman, K. D., Goulding, K. W. T. and Conway, J. S. 2001. Over-wintering leaching of nitrogen associated with different cropping systems. Abstract 11th Nitrogen Workshop, Reims, France, 9-12 September 2001. pp. 437-438

Net mineralization following cultivation

C2 - Non-edited contributions to conferences

Lovell, R. D. and Hatch, D. J. 2001. Net mineralization following cultivation. Abstract 11th Nitrogen Workshop, Reims, France, 9-12 September 2001. pp. 319-320

Nitrogen mineralisation from dairy cattle manures with different dry matter contents

C2 - Non-edited contributions to conferences

Salazar, F. J., Chadwick, D. R., Hatch, D. J., Pain, B. F. and Owen, E. 2001. Nitrogen mineralisation from dairy cattle manures with different dry matter contents. Poster 11th Nitrogen Workshop, Reims, France, 9-12 September 2001. pp. 197-198

Predicting nitrate loss in arable and grassland soils using gross N transformation data

C2 - Non-edited contributions to conferences

Stockdale, E. A., Murphy, D. V., Hatch, D. J. and Legard, S. F. 2001. Predicting nitrate loss in arable and grassland soils using gross N transformation data. Abstract 11th Nitrogen Workshop, Reims, France, 9-12 September 2001. pp. 395-396

Nitrous oxide emission after injection of 15N labelled dairy slurry injected into soil

C2 - Non-edited contributions to conferences

Bol, R., Dittert, K., King, R., Chadwick, D. R. and Hatch, D. J. 2001. Nitrous oxide emission after injection of 15N labelled dairy slurry injected into soil. Abstract SIMSUG 2001. Annual Meeting of the Stable Isotope Mass Spectrometry Users' Group, Glasgow, UK, January 2001.

Assessing soil fertility: a simple measurement of soil N availability

C2 - Non-edited contributions to conferences

Hatch, D. J. and Lovell, R. D. 2001. Assessing soil fertility: a simple measurement of soil N availability. Poster presentation. Society of Chemical Industry - Agriculture and Environment Group Meeting on Assessing Soil Fertility: Soil Organic Matter Measurement, Modelling or Both?, London, 20 March 2001. Society of Chemical Industry, London.

Use of a novel nitrification inhibitor to reduce nitrous oxide emission from 15N-labelled slurry injected into soil

A - Papers appearing in refereed journals

Dittert, K., Bol, R., King, Rosalind, Chadwick, D. R. and Hatch, D. J. 2001. Use of a novel nitrification inhibitor to reduce nitrous oxide emission from 15N-labelled slurry injected into soil. Rapid Communications in Mass Spectrometry. 15 (15), pp. 1291-1296. https://doi.org/10.1002/rcm.335

Evaluation of two N cycle models for the prediction of N mineralization from grassland soils in the UK

A - Papers appearing in refereed journals

Bhogal, A., Shepherd, M. A., Hatch, D. J., Brown, L. and Jarvis, S. C. 2001. Evaluation of two N cycle models for the prediction of N mineralization from grassland soils in the UK. Soil Use and Management. 17 (3), pp. 163-172. https://doi.org/10.1079/SUM200171

Mineralization of nitrogen in permanent pastures amended with fertilizer or dung

A - Papers appearing in refereed journals

Antil, R. S., Lovell, R. D., Hatch, D. J. and Jarvis, S. C. 2001. Mineralization of nitrogen in permanent pastures amended with fertilizer or dung. Biology And Fertility Of Soils. 33 (2), pp. 132-138.

Nitrate leaching from reseeded pasture

A - Papers appearing in refereed journals

Shepherd, M. A., Hatch, D. J., Jarvis, S. C. and Bhogal, A. 2001. Nitrate leaching from reseeded pasture. Soil Use and Management. 17 (2), pp. 97-105.

An improved soil core incubation method for the field measurement of denitrification and net mineralization using acetylene inhibition

A - Papers appearing in refereed journals

Jarvis, S. C., Hatch, D. J. and Lovell, R. D. 2001. An improved soil core incubation method for the field measurement of denitrification and net mineralization using acetylene inhibition. Nutrient Cycling in Agroecosystems. 59 (3), pp. 219-225.

Mineralization effects in grasslands

D1 - Technical reports: non-confidential

Jarvis, S. C. and Hatch, D. J. 2000. Mineralization effects in grasslands.

Controls over losses from grassland soils

D1 - Technical reports: non-confidential

Jarvis, S. C. and Hatch, D. J. 2000. Controls over losses from grassland soils.

Further N cycle studies on farmlets

D1 - Technical reports: non-confidential

Jarvis, S. C. and Hatch, D. J. 2000. Further N cycle studies on farmlets.

Gross nitrogen transformations as an index of nitrogen cycling

C2 - Non-edited contributions to conferences

Hatch, D. J., Ledgard, S. F., Sprosen, M. S. and Sarathchandra, S. U. 2000. Gross nitrogen transformations as an index of nitrogen cycling. Adams, J. A. and Metherell, A. K. (ed.) Proceedings Australian and New Zealand Second Joint Soils Conference, Lincoln University, Canterbury, 3-8 December 2000. Volume 3: Poster Papers. New Zealand Society of Soil Science. pp. 87-88

Gross rates of N cycling processes measured by 15N mean pool dilution

G - Articles in popular magazines and other technical publications

Hatch, D. J. 2000. Gross rates of N cycling processes measured by 15N mean pool dilution.

Composting farm yard manure

C2 - Non-edited contributions to conferences

Hatch, D. J. and Stone, A. 2000. Composting farm yard manure. Poster. Grassland Management: Practice into Profit, IGER, North Wyke, 18 July 2000.

The potential for net mineralization measured in grassland soil to a depth of 40 cm.

C2 - Non-edited contributions to conferences

Lovell, R. D. and Hatch, D. J. 2000. The potential for net mineralization measured in grassland soil to a depth of 40 cm. Eurosoil 2000, British Society of Soil Science, Reading, 4-6 September 2000.

Mineralization in a permanent pasture and in a newly established sward

C2 - Non-edited contributions to conferences

Lovell, R. D., Hatch, D. J. and Dixon, E. R. 2000. Mineralization in a permanent pasture and in a newly established sward. Proceedings 6th British Grassland Society Research Conference, Aberdeen, 11-13 September 2000. British Grassland Society (BGS) Hurley. pp. 109-110

Mobility and fate of nitrate applied to lysimeters

C2 - Non-edited contributions to conferences

Dixon, E. R., Hatch, D. J. and Jarvis, S. C. 2000. Mobility and fate of nitrate applied to lysimeters. Proceedings 6th British Grassland Society Research Conference, Aberdeen, 11-13 September 2000. British Grassland Society (BGS) Hurley. pp. 101-102

Ammonia fluxes from cut swards

C2 - Non-edited contributions to conferences

Granger, S. J., Ross, C. A. and Hatch, D. J. 2000. Ammonia fluxes from cut swards. Proceedings 6th British Grassland Society Research Conference, Aberdeen, 11-13 September 2000. British Grassland Society (BGS) Hurley. pp. 9-10

Report on a Study Visit to New Zealand and Australia funded by the Royal Society with additional support from the British Grassland Society, 25 November - 13 December 2000

D1 - Technical reports: non-confidential

Hatch, D. J. 2000. Report on a Study Visit to New Zealand and Australia funded by the Royal Society with additional support from the British Grassland Society, 25 November - 13 December 2000. Institute of Grassland and Environmental Research IGER, North Wyke Okehampton.

The influence of soil pH and nitrogen fertiliser application on N2O production by nitrifier denitrification. Some preliminary results

C1 - Edited contributions to conferences/learned societies

Wrage, N., Dixon, E. R., Estavillo, J. M. and Nawalany, P. 2000. The influence of soil pH and nitrogen fertiliser application on N2O production by nitrifier denitrification. Some preliminary results. Oenema, O. and Sapek, A. (ed.) Effects of liming and nitrogen fertilizer application on soil acidity and gaseous nitrogen oxide emissions in grassland systems. Results of a field campaign in Poland within the framework of the EU-funded project COGANOG; FAIR3 CT96-1920. Institute for Land Reclamation and Grassland Farming, Falenty, Poland. pp. 72-83

The influence of soil pH and nitrogen fertiliser application on N2O production from nitrification and denitrification

C1 - Edited contributions to conferences/learned societies

Estavillo, J. M., Merino, P., Wrage, N., Dixon, E. R., Corre, W. J., Sapek, B. and Plodzik, M. 2000. The influence of soil pH and nitrogen fertiliser application on N2O production from nitrification and denitrification. Oenema, O. and Sapek, A. (ed.) Effects of liming and nitrogen fertilizer application on soil acidity and gaseous nitrogen oxide emissions in grassland systems. Results of a field campaign in Poland within the framework of the EU-funded project COGANOG; FAIR3 CT96-1920. Institute for Land Reclamation and Grassland Farming, Falenty, Poland. pp. 61-71

Gross rates of N cycling processes measured by 15N mean pool dilution technique

C2 - Non-edited contributions to conferences

Hatch, D. J. and Lovell, R. D. 2000. Gross rates of N cycling processes measured by 15N mean pool dilution technique. SIMSUG 2000. Annual Meeting of the Stable Isotope Mass Spectrometry Users' Group, ITE Merlewood, Grange-over-Sands, 18-19 January 2000. pp. 33

Comparison of different methodologies for field measurement of net nitrogen mineralization in pasture soils under different soil conditions

A - Papers appearing in refereed journals

Hatch, D. J., Bhogal, A., Lovell, R. D., Shepherd, M. A. and Jarvis, S. C. 2000. Comparison of different methodologies for field measurement of net nitrogen mineralization in pasture soils under different soil conditions. Biology And Fertility Of Soils. 32 (4), pp. 287-293.

Distribution of nitrogen pools in the soil profile of undisturbed and reseeded grasslands

A - Papers appearing in refereed journals

Bhogal, A., Murphy, D. V., Fortune, S. S., Shepherd, M. A., Hatch, D. J., Jarvis, S. C., Gaunt, J. L. and Goulding, K. W. T. 2000. Distribution of nitrogen pools in the soil profile of undisturbed and reseeded grasslands. Biology And Fertility Of Soils. 30 (4), pp. 356-362. https://doi.org/10.1007/s003740050016

Combining field incubation with nitrogen-15N labelling to examine nitrogen transformations in low to high intensity grassland management systems

A - Papers appearing in refereed journals

Hatch, D. J., Jarvis, S. C., Parkinson, R. J. and Lovell, R. D. 2000. Combining field incubation with nitrogen-15N labelling to examine nitrogen transformations in low to high intensity grassland management systems. Biology And Fertility Of Soils. 30, pp. 492-499.

Nitrogen mineralization and microbial activity in permanent pastures amended with nitrogen fertilizer or dung

A - Papers appearing in refereed journals

Hatch, D. J., Lovell, R. D., Antil, R. S., Jarvis, S. C. and Owen, P. M. 2000. Nitrogen mineralization and microbial activity in permanent pastures amended with nitrogen fertilizer or dung. Biology And Fertility Of Soils. 30 (4), pp. 288-293 + correction 31 (3-4), 360.

How do long-term differences in microbial activity in grassland soils become established?

C2 - Non-edited contributions to conferences

Lovell, R. D., Hatch, D. J., Antil, R. S. and Jarvis, S. C. 1999. How do long-term differences in microbial activity in grassland soils become established? Tenth Nitrogen Workshop, Copenhagen, Denmark, 23-26 August 1999.

Net mineralization: a comparison of field methods (jar and box)

C2 - Non-edited contributions to conferences

Lovell, R. D., Hatch, D. J., Bhogal, A., Jarvis, S. C. and Shepherd, M. A. 1999. Net mineralization: a comparison of field methods (jar and box). Tenth Nitrogen Workshop, Copenhagen, Denmark, 23-26 August 1999.

Soil nitrogen supply under grass swards: measurement and prediction

C1 - Edited contributions to conferences/learned societies

Shepherd, M. A., Hatch, D. J., Bhogal, A. and Jarvis, S. C. 1999. Soil nitrogen supply under grass swards: measurement and prediction. Corrall, A. J. (ed.) Accounting for Nutrients: A Challenge for Grassland Farmers in the 21st Century, British Grassland Society Occasional Symposium No 33, BGS Conference, Great Malvern, UK, 22-23 November 1999. British Grassland Society (BGS) Hurley. pp. 23-28

Nitrogen turnover in grassland soils: measurement and prediction

C2 - Non-edited contributions to conferences

Hatch, D. J., Bhogal, A., Shepherd, M. A. and Jarvis, S. C. 1999. Nitrogen turnover in grassland soils: measurement and prediction. Tenth Nitrogen Workshop, Copenhagen, Denmark, 23-26 August 1999.

Evidence for a priming effect of fertilizer N on turnover of soil organic N

C2 - Non-edited contributions to conferences

Hatch, D. J., Sprosen, M., Jarvis, S. C. and Lovell, R. D. 1999. Evidence for a priming effect of fertilizer N on turnover of soil organic N. Sustainable Management of Soil Organic Matter, British Society of Soil Science Meeting, Edinburgh, 15-17 September 1999.

Soil thermal unit aids N prediction

G - Articles in popular magazines and other technical publications

Hatch, D. J. 1999. Soil thermal unit aids N prediction. Farming News. (22 January).

Nitrogen mineralization in soil layers, soil particles and macro-organic matter under grassland

A - Papers appearing in refereed journals

Patra, A. K., Jarvis, S. C. and Hatch, D. J. 1999. Nitrogen mineralization in soil layers, soil particles and macro-organic matter under grassland. Biology And Fertility Of Soils. 29 (1), pp. 38-45.

Mean pool dilution technique applied to intact soil cores combined with field incubation

C2 - Non-edited contributions to conferences

Hatch, D. J. and Lovell, R. D. 1999. Mean pool dilution technique applied to intact soil cores combined with field incubation. SIMSUG 1999, Book of Abstracts of the Annual Meeting of the Stable Isotope Mass Spectrometry Users Group, Exeter, UK, 19-20 January 1999 (R Bol, SC Jarvis & LR Mytton, organisers). Institute of Grassland and Environmental Research IGER, North Wyke Okehampton. pp. 48

Carbon induced subsoil denitrification of N-15 labelled nitrate in 1 m deep soil columns

A - Papers appearing in refereed journals

Clough, T. J., Jarvis, S. C., Dixon, E. R., Hatch, D. J., Stevens, R. J. and Laughlin, R. J. 1999. Carbon induced subsoil denitrification of N-15 labelled nitrate in 1 m deep soil columns. Soil Biology and Biochemistry. 31 (1), pp. 31-41. https://doi.org/10.1016/S0038-0717(98)00097-2

Comparison of methodologies for field measurement of net nitrogen mineralisation in arable soils

A - Papers appearing in refereed journals

Bhogal, A., Hatch, D. J., Shepherd, M. A. and Jarvis, S. C. 1999. Comparison of methodologies for field measurement of net nitrogen mineralisation in arable soils. Plant and Soil. 207 (1), pp. 15-28.

The influence of nitrification in determining the supply, distribution and fate of nitrogen in grassland soils

F - Theses

Hatch, D. J. 1998. The influence of nitrification in determining the supply, distribution and fate of nitrogen in grassland soils. F - Theses

Stimulation of microbial activity following spring applications of nitrogen

A - Papers appearing in refereed journals

Lovell, R. D. and Hatch, D. J. 1998. Stimulation of microbial activity following spring applications of nitrogen. Biology And Fertility Of Soils. 26 (1), pp. 28-30.

Short-term nitrogen fluxes in grassland soils under different long-term nitrogen management regimes

A - Papers appearing in refereed journals

Ledgard, S. F., Jarvis, S. C. and Hatch, D. J. 1998. Short-term nitrogen fluxes in grassland soils under different long-term nitrogen management regimes. Soil Biology and Biochemistry. 30 (10-11), pp. 1233-1241.

Relationships between soil thermal units, nitrogen mineralization and dry matter production in pastures

A - Papers appearing in refereed journals

Clough, T. J., Jarvis, S. C. and Hatch, D. J. 1998. Relationships between soil thermal units, nitrogen mineralization and dry matter production in pastures. Soil Use and Management. 14 (2), pp. 65-69.

Rates of N loss from grassland soils by denitrification in spring and autumn as influenced by nitrification and soil conditions

C2 - Non-edited contributions to conferences

Hatch, D. J. and Lovell, R. D. 1998. Rates of N loss from grassland soils by denitrification in spring and autumn as influenced by nitrification and soil conditions. British Society of Soil Science Meeting, Belfast, N Ireland, 6-9 September 1998.

Emission of nitric oxide and nitrous oxide from soil under field and laboratory conditions

A - Papers appearing in refereed journals

Williams, P. H., Jarvis, S. C. and Dixon, E. R. 1998. Emission of nitric oxide and nitrous oxide from soil under field and laboratory conditions. Soil Biology and Biochemistry. 30 (14), pp. 1885-1893. https://doi.org/10.1016/S0038-0717(98)00052-2

Denitrification and N2O emissions from a UK pasture soil following the early spring application of cattle slurry and mineral fertiliser

A - Papers appearing in refereed journals

Ellis, S. A., Yamulki, S., Dixon, E. R., Harrison, R. M. and Jarvis, S. C. 1998. Denitrification and N2O emissions from a UK pasture soil following the early spring application of cattle slurry and mineral fertiliser. Plant and Soil. 202 (1), pp. 15-25. https://doi.org/10.1023/A:1004332209345

Concurrent measurements of net mineralization, nitrification, denitrification and leaching from field incubated soil cores

A - Papers appearing in refereed journals

Hatch, D. J., Jarvis, S. C. and Parkinson, R. J. 1998. Concurrent measurements of net mineralization, nitrification, denitrification and leaching from field incubated soil cores. Biology And Fertility Of Soils. 26 (4), pp. 323-330.

Changes in microbial activity related to long-term management and recent inputs from fertilizer and dung

C2 - Non-edited contributions to conferences

Lovell, R. D., Hatch, D. J., Antil, R. S. and Jarvis, S. C. 1998. Changes in microbial activity related to long-term management and recent inputs from fertilizer and dung. British Society of Soil Science Meeting, Belfast, N Ireland, 6-9 September 1998.

Net mineralisation in grassland soils: effect of cultivation

C2 - Non-edited contributions to conferences

Bhogal, A., Shepherd, M. A., Hatch, D. J. and Jarvis, S. C. 1997. Net mineralisation in grassland soils: effect of cultivation. Shiel, R. S. (ed.) Current Progress in Soil Research, Golden Jubilee Meeting of the British Society of Soil Science, University of Newcastle upon Tyne, 8-11 September 1997. pp. 3

Predicting the contribution of N supplies from organic matter in grassland soils

C2 - Non-edited contributions to conferences

Jarvis, S. C., Hatch, D. J., Shepherd, M. A. and Lovell, R. D. 1997. Predicting the contribution of N supplies from organic matter in grassland soils. Fertilization for Sustainable Plant Production and Soil Fertility, Proceedings of the 11th World Fertilizer Congress Symposium of CIEC, Gent, Belgium, 7-13 September 1997.

The potential for nitrate leaching in reseeded swards

C2 - Non-edited contributions to conferences

Davies, M. J., Hatch, D. J., Jarvis, S. C. and Shepherd, M. A. 1997. The potential for nitrate leaching in reseeded swards. British Grassland Society (BGS) Fifth Research Conference, Seale Hayne Faculty of Agriculture Food & Land Use, University of Plymouth, Newton Abbot, Devon, 8-10 September 1997. British Grassland Society (BGS) Hurley. pp. 91-92

Response of soil microbial biomass to fertilizer

C2 - Non-edited contributions to conferences

Lovell, R. D. and Hatch, D. J. 1997. Response of soil microbial biomass to fertilizer. British Grassland Society (BGS) Fifth Research Conference, Seale Hayne Faculty of Agriculture Food & Land Use, University of Plymouth, Newton Abbot, Devon, 8-10 September 1997. British Grassland Society (BGS) Hurley. pp. 99-100

Report on a visit to New Zealand: a British Council funded exchange with additional support from a Stapledon Travelling Fellowship and BGS Bursary, 29 November 1996 - 6 January 1997

D1 - Technical reports: non-confidential

Hatch, D. J. 1997. Report on a visit to New Zealand: a British Council funded exchange with additional support from a Stapledon Travelling Fellowship and BGS Bursary, 29 November 1996 - 6 January 1997.

Ionic contents of leachate from grassland soils: a comparison between ceramic suction cups and drainage

A - Papers appearing in refereed journals

Hatch, D. J., Jarvis, S. C., Rook, A. J. and Bristow, A. W. 1997. Ionic contents of leachate from grassland soils: a comparison between ceramic suction cups and drainage. Soil Use and Management. 13 (2), pp. 68-74. https://doi.org/10.1111/j.1475-2743.1997.tb00559.x

The influence of nitrification in determining the supply, distribution and fate of nitrate in grassland soils

D1 - Technical reports: non-confidential

Hatch, D. J. 1996. The influence of nitrification in determining the supply, distribution and fate of nitrate in grassland soils.

The influence of nitrification in determining the supply, distribution and fate of nitrate in grassland soils

D1 - Technical reports: non-confidential

Hatch, D. J. 1996. The influence of nitrification in determining the supply, distribution and fate of nitrate in grassland soils.

The effect of management practices to reduce nitrate leaching in dairy systems on denitrification and nitrous oxide emissions: an add-on experiment to the MIDaS study at ADAS Bridgets

D1 - Technical reports: non-confidential

Ellis, S. A., Harrison, R. M., Yamulki, S., Dixon, E. R. and Jarvis, S. C. 1996. The effect of management practices to reduce nitrate leaching in dairy systems on denitrification and nitrous oxide emissions: an add-on experiment to the MIDaS study at ADAS Bridgets.

Preliminary measurements of nitric oxide emission from fertilized soil

C1 - Edited contributions to conferences/learned societies

Williams, P. H., Jarvis, S. C. and Dixon, E. R. 1996. Preliminary measurements of nitric oxide emission from fertilized soil. Cussie, L. D. (ed.) Proceedings of a workshop on Fertilizer Requirements of Grazed pasture and Field Crops, Massey University, New Zealand.

Nitrification in grassland soils

C2 - Non-edited contributions to conferences

Hatch, D. J. 1996. Nitrification in grassland soils. Poster at Seale-Hayne Faculty of Agriculture, Food and Land Use, Dartington Hall.

Nitrification in grassland soils

C2 - Non-edited contributions to conferences

Hatch, D. J., Jarvis, S. C. and Parkinson, R. J. 1996. Nitrification in grassland soils. Transactions of the Ninth Nitrogen Workshop, Braunschweig, Germany, 9-12 September 1996. pp. 239-241

Mineralization and immobilisation of nitrogen in grassland soils; management effects

C2 - Non-edited contributions to conferences

Shepherd, M. A., Hatch, D. J., Jarvis, S. C., Deakin, D. and Davies, M. 1996. Mineralization and immobilisation of nitrogen in grassland soils; management effects. Predicting Soil Mineral Nitrogen Supply, Society of Chemical Industry, 22 October 1996.

Mineralization and immobilization of nitrogen in grassland soils: management effects

C2 - Non-edited contributions to conferences

Shepherd, M. A., Hatch, D. J., Jarvis, S. C., Deakin, D. and Davies, M. 1996. Mineralization and immobilization of nitrogen in grassland soils: management effects. Transactions of the Ninth Nitrogen Workshop, Braunschweig, Germany, 9-12 September 1996. pp. 321-324

Management effects on potential denitrification in grassland soils

C2 - Non-edited contributions to conferences

Dixon, E. R., Jarvis, S. C. and Hatch, D. J. 1996. Management effects on potential denitrification in grassland soils. Nitrogen Emissions from Grassland, North Wyke, 20-22 May 1996.

Impact of insect root herbivory on the growth and nitrogen and carbon contents of white clover (Trifolium repens L.) seedlings

A - Papers appearing in refereed journals

Murray, P. J., Hatch, D. J. and Cliquet, J. B. 1996. Impact of insect root herbivory on the growth and nitrogen and carbon contents of white clover (Trifolium repens L.) seedlings. Canadian Journal Of Botany. 74 (10), pp. 1591-1595. https://doi.org/10.1139/b96-192

Hay meadow is a winner

G - Articles in popular magazines and other technical publications

Hatch, D. J. and Tyson, K. C. 1996. Hay meadow is a winner. (Spring), p. 31.

Effect of root herbivory on N-fixation by white clover

B - Book chapters etc edited externally

Murray, P. J. and Hatch, D. J. 1996. Effect of root herbivory on N-fixation by white clover. in: Younie, D. (ed.) Legumes in Sustainable Farming Systems, British Grassland Society Occasional Symposium No 30 (Proceedings of joint conference of BGS and SFS Initiative, SAC, Craibstone, Aberdeen, 2-4 September 1996) British Grassland Society (BGS) Hurley. pp. 46-47

Denitrification in pasture soils

C2 - Non-edited contributions to conferences

Owen, P. M., Jarvis, S. C., Hatch, D. J., Matthews, R. A. and Laws, J. A. 1996. Denitrification in pasture soils. Nitrogen Emissions from Grassland, North Wyke, 20-22 May 1996.

Creating a butterfly garden

G - Articles in popular magazines and other technical publications

Tyson, K. C. and Hatch, D. J. 1996. Creating a butterfly garden. Butterfly Conservation, Devon Branch Newsletter. 38 (Winter 1996/1), pp. 5-6.

A new incubation system for the field measurement of nitrification and assessment of nitrogen lost through leaching and denitrification

D1 - Technical reports: non-confidential

Hatch, D. J., Jarvis, S. C. and Parkinson, R. J. 1996. A new incubation system for the field measurement of nitrification and assessment of nitrogen lost through leaching and denitrification.

Profiles of soil nitrate using suction-cup probes compared with surface run-off and field damage

C1 - Edited contributions to conferences/learned societies

Hatch, D. J., Jarvis, S. C. and Bristow, A. W. 1995. Profiles of soil nitrate using suction-cup probes compared with surface run-off and field damage. Progress in Nitrogen Cycling, the Eighth Nitrogen Cycling Workshop, University of Ghent, Belgium, 5-9 September 1994.

Mineralization of nitrogen in long-term pasture soils: effects of management

A - Papers appearing in refereed journals

Gill, K., Jarvis, S. C. and Hatch, D. J. 1995. Mineralization of nitrogen in long-term pasture soils: effects of management. Plant and Soil. 172, pp. 153-162.

Effects of feeding by larvae of Sitona flavescens on white clover seedlings

C1 - Edited contributions to conferences/learned societies

Murray, P. J., Hatch, D. J. and Cliquet, J. B. 1995. Effects of feeding by larvae of Sitona flavescens on white clover seedlings. Pollott, G. E. (ed.) Grassland into the 21st Century: Challenges and Opportunities, British Grassland Society Occasional Symposium No 29, 50th Anniversary Meeting, Harrogate, UK, 4-6 December 1995. British Grassland Society (BGS) Hurley. pp. 269-270

Transfer of nitrogen from damaged roots of white clover (Trifolium repens L.) to closely associated roots of intact perennial ryegrass (Lolium perenne L.)

A - Papers appearing in refereed journals

Hatch, D. J. and Murray, P. J. 1994. Transfer of nitrogen from damaged roots of white clover (Trifolium repens L.) to closely associated roots of intact perennial ryegrass (Lolium perenne L.). Plant and Soil. 166, pp. 181-185. https://doi.org/10.1007/BF00008331

Report on visit to Caen University: AFRC/INRA collaborative agreement, 9-11 March 1994

D1 - Technical reports: non-confidential

Hatch, D. J., Murray, P. J. and Kerley, S. J. 1994. Report on visit to Caen University: AFRC/INRA collaborative agreement, 9-11 March 1994.

Report on a visit to UTAD (University of Tras-os-Montes e Alto Douro), Vila Real, Portugal, 18-22 March 1994

D1 - Technical reports: non-confidential

Hatch, D. J. and Misselbrook, T. H. 1994. Report on a visit to UTAD (University of Tras-os-Montes e Alto Douro), Vila Real, Portugal, 18-22 March 1994.

Preliminary studies of the exchanges of methane between grassland and the atmosphere

C1 - Edited contributions to conferences/learned societies

Jarvis, S. C., Lockyer, D. R., Warren, G. P., Hatch, D. J. and Dollard, G. J. 1994. Preliminary studies of the exchanges of methane between grassland and the atmosphere. 15th General Meeting of the European Grassland Federation, Wageningen, the Netherlands, 6-10 June 1994.

Potential for denitrification at depth below long-term grass swards

A - Papers appearing in refereed journals

Jarvis, S. C. and Hatch, D. J. 1994. Potential for denitrification at depth below long-term grass swards. Soil Biology and Biochemistry. 26 (12), pp. 1629-1636.

Effect of root feeding invertebrates on short term transfer of N from white clover to perennial ryegrass

C2 - Non-edited contributions to conferences

Murray, P. J. and Hatch, D. J. 1994. Effect of root feeding invertebrates on short term transfer of N from white clover to perennial ryegrass. Fourth British Grassland Society (BGS) Research Conference, 26-28 September 1994, Reading University. pp. 41-42

Denitrification and the evolution of nitrous oxide after the application of cattle slurry to a peat soil

A - Papers appearing in refereed journals

Jarvis, S. C., Hatch, D. J., Pain, B. F. and Klarenbeek, J. V. 1994. Denitrification and the evolution of nitrous oxide after the application of cattle slurry to a peat soil. Plant and Soil. 166, pp. 231-241.

Sitona weevils (Coleoptera; Curculionidae) as agents for rapid transfer of nitrogen from white clover (Trifolium repens L.) to perennial ryegrass

A - Papers appearing in refereed journals

Murray, P. J. and Hatch, D. J. 1994. Sitona weevils (Coleoptera; Curculionidae) as agents for rapid transfer of nitrogen from white clover (Trifolium repens L.) to perennial ryegrass. Annals of Applied Biology - AAB. 125, pp. 29-33. https://doi.org/10.1111/j.1744-7348.1994.tb04943.x

Report on a visit to France: AFRC/INRA collaborative agreement, 22-26 February 1993

D1 - Technical reports: non-confidential

Hatch, D. J., Lovell, R. D., Gill, K. and Murray, P. J. 1993. Report on a visit to France: AFRC/INRA collaborative agreement, 22-26 February 1993.

Nitrogen losses from clover due to weevil root damage

D1 - Technical reports: non-confidential

Hatch, D. J. and Murray, P. J. 1993. Nitrogen losses from clover due to weevil root damage.

Greenhouse gas exchanges with temperate grassland systems

C1 - Edited contributions to conferences/learned societies

Jarvis, S. C., Hatch, D. J. and Dollard, G. J. 1993. Greenhouse gas exchanges with temperate grassland systems. Proceedings of XVIIth International Grassland Congress, Palmerston North, New Zealand, February 1993.

Grass: the right environment

G - Articles in popular magazines and other technical publications

Hatch, D. J. 1993. Grass: the right environment. Farmers Weekly. (7 May 1993).

Micrometeorological studies of ammonia emission from sheep grazed swards

A - Papers appearing in refereed journals

Jarvis, S. C., Hatch, D. J., Orr, R. J. and Reynolds, S. E. 1991. Micrometeorological studies of ammonia emission from sheep grazed swards. The Journal of Agricultural Science. 117, pp. 101-109. https://doi.org/Reynolds(a1)DOI:https://doi.org/10.1017/S0021859600079028