Amino acids as diagnostics of soil and soil water quality
F - Theses
Hawkins, J. M. B. 2004. Amino acids as diagnostics of soil and soil water quality. F - Theses
| Authors | Hawkins, J. M. B. |
|---|---|
| Year of Publication | 2004 |
| Funder project or code | Soil Science and Environmental Quality (SSEQ) |
| Project: 2430 6724 | |
| Collective title | PhD Thesis, University of Plymouth |
| Page range | 310pp |
Related outputs
High resolution flow datasets for surface runoff, surface lateral runoff and drainage pathways from 1 ha sized hydrologically isolated plots.
N - Datasets
Hawkins, J. M. B. 2023. High resolution flow datasets for surface runoff, surface lateral runoff and drainage pathways from 1 ha sized hydrologically isolated plots. Rothamsted Research. https://doi.org/10.23637/rothamsted.98y67
The North Wyke Farm Platform: GreenFeed System Methane and Carbon Dioxide Data
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De-Meo-Filho, P., Hawkins, J. M. B. and Harris, P. 2023. The North Wyke Farm Platform: GreenFeed System Methane and Carbon Dioxide Data. Rothamsted Research Rothamsted Research. https://doi.org/10.23637/rothamsted.98y53
The North Wyke Farm Platform: Eddy Covariance Greenhouse Gas Data
D1 - Technical reports: non-confidential
Olde, L., Hawkins, J. M. B. and Harris, P. 2023. The North Wyke Farm Platform: Eddy Covariance Greenhouse Gas Data. Rothamsted Research Rothamsted Research. https://doi.org/10.23637/rothamsted.98y52
The North Wyke Farm Platform: Field Survey Data
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Hawkins, J. M. B., Beaumont, D. A., Sint, H. M. and Harris, P. 2023. The North Wyke Farm Platform: Field Survey Data. Rothamsted Research Rothamsted Research. https://doi.org/10.23637/rothamsted.98y51
The North Wyke Farm Platform: Livestock Data
D1 - Technical reports: non-confidential
Hawkins, J. M. B., Griffith, B. A. and Harris, P. 2023. The North Wyke Farm Platform: Livestock Data. Rothamsted Research Rothamsted Research. https://doi.org/10.23637/rothamsted.98y50
The North Wyke Farm Platform: Field Events Data
D1 - Technical reports: non-confidential
Hawkins, J. M. B. and Harris, P. 2023. The North Wyke Farm Platform: Field Events Data. Rothamsted Research Rothamsted Research. https://doi.org/10.23637/rothamsted.98y4z
The North Wyke Farm Platform: Quality Control System (Data version 3; released on 01-12-2018)
D1 - Technical reports: non-confidential
Hawkins, J. M. B., Sint, H. M. and Harris, P. 2023. The North Wyke Farm Platform: Quality Control System (Data version 3; released on 01-12-2018). Rothamsted Research Rothamsted Research. https://doi.org/10.23637/rothamsted.98y4y
The North Wyke Farm Platform: Fine Resolution (15-minute) Soil Moisture Station Data
D1 - Technical reports: non-confidential
Hawkins, J. M. B. and Harris, P. 2023. The North Wyke Farm Platform: Fine Resolution (15-minute) Soil Moisture Station Data. Rothamsted Research Rothamsted Research. https://doi.org/10.23637/rothamsted.98y4x
The North Wyke Farm Platform: Fine Resolution (15-minute) Meteorological Data
D1 - Technical reports: non-confidential
Hawkins, J. M. B. and Harris, P. 2023. The North Wyke Farm Platform: Fine Resolution (15-minute) Meteorological Data. Rothamsted Research Rothamsted Research. https://doi.org/10.23637/rothamsted.98y4w
The North Wyke Farm Platform: Fine Resolution (15-Minute) Hydrology and Water Quality Data
D1 - Technical reports: non-confidential
Hawkins, J. M. B., Griffith, B. A. and Harris, P. 2023. The North Wyke Farm Platform: Fine Resolution (15-Minute) Hydrology and Water Quality Data. Rothamsted Research. https://doi.org/10.23637/rothamsted.98y34
The North Wyke Farm Platform: Design, Establishment and Development
D1 - Technical reports: non-confidential
Hawkins, J. M. B., Griffith, B. A., Sint, H. M. and Harris, P. 2023. The North Wyke Farm Platform: Design, Establishment and Development. Rothamsted Research. https://doi.org/10.23637/rothamsted.98y1x
Do NO, N2O, N2 and N2 fluxes differ in soils sourced from cropland and varying riparian buffer vegetation? An incubation study
A - Papers appearing in refereed journals
Dlamini, J. C., Tesfamariam, E. H., Verbeeck, M., Loick, N., Louro-Lopez, A., Hawkins, J. M. B., Blackwell, M. S. A., Dunn, R., Collins, A. L. and Cardenas, L. M. 2023. Do NO, N2O, N2 and N2 fluxes differ in soils sourced from cropland and varying riparian buffer vegetation? An incubation study. Soil Use and Management. 40 (1), p. e12951. https://doi.org/10.1111/sum.12951
Soil carbon dioxide (CO2) fluxes in permanent upslope pasture and downslope riparian buffers with varying vegetation
A - Papers appearing in refereed journals
Dlamini, J., Tesfamariam, E. H., Dunn, R., Hood, J., Hawkins, J. M. B., Blackwell, M. S. A., Collins, A. L. and Cardenas, L. M. 2023. Soil carbon dioxide (CO2) fluxes in permanent upslope pasture and downslope riparian buffers with varying vegetation. Journal of Plant Nutrition and Soil Science. 186 (4), pp. 406-416. https://doi.org/10.1002/jpln.202100292
Impacts of different vegetation in riparian buffer strips on runoff and sediment loss
A - Papers appearing in refereed journals
Dunn, R. M., Hawkins, J. M. B., Blackwell, M. S. A., Zhang, Y. and Collins, A. L. 2022. Impacts of different vegetation in riparian buffer strips on runoff and sediment loss. Hydrological Processes. 36 (11), p. e14733. https://doi.org/10.1002/hyp.14733
Soil CO2 emissions in cropland with fodder maize (Zea mays L.) with and without riparian buffer strips of differing vegetation
A - Papers appearing in refereed journals
Dlamini, J., Cardenas, L. M., Tesfamariam, E. H., Dunn, R. M., Hawkins, J. M. B., Blackwell, M. S. A. and Collins, A. L. 2022. Soil CO2 emissions in cropland with fodder maize (Zea mays L.) with and without riparian buffer strips of differing vegetation. Agroforestry Systems. 96, pp. 983-995. https://doi.org/10.1007/s10457-022-00756-5
Riparian buffer strips influence nitrogen losses as nitrous oxide and leached N from upslope permanent pasture
A - Papers appearing in refereed journals
Dlamini, J., Cardenas, L. M., Tesfamariam, E.H., Dunn, R. M., Loick, N., Charteris, A., Cocciaglia, L., Vangeli,S., Blackwell, M. S. A., Upadhayay, H., Hawkins, J. M. B., Evans, J. and Collins, A. L. 2022. Riparian buffer strips influence nitrogen losses as nitrous oxide and leached N from upslope permanent pasture. Agriculture, Ecosystems & Environment. 336 (15 September), p. 108031. https://doi.org/10.1016/j.agee.2022.108031
Soil N2O and CH4 emissions from fodder maize production with and without riparian buffer strips of differing vegetation
A - Papers appearing in refereed journals
Dlamini, J., Cardenas, L. M., Tesfamariam, E. H., Dunn, R., Evans, J., Hawkins, J. M. B., Blackwell, M. S. A. and Collins, A. L. 2022. Soil N2O and CH4 emissions from fodder maize production with and without riparian buffer strips of differing vegetation. Plant and Soil. 477, pp. 297-318. https://doi.org/10.1007/s11104-022-05426-0
The effect of soil organic matter on long-term availability of phosphorus in soil: evaluation in a biological P mining experiment
A - Papers appearing in refereed journals
Hawkins, J. M. B., Vermeiren, C., Blackwell, M. S. A., Darch, T., Granger, S. J., Dunham, S. J., Hernandez, J. M. B., Smolders, E. and McGrath, S. P. 2022. The effect of soil organic matter on long-term availability of phosphorus in soil: evaluation in a biological P mining experiment. Geoderma. 423, p. 115965. https://doi.org/10.1016/j.geoderma.2022.115965
Soil methane (CH4) fluxes in cropland with permanent pasture and riparian buffer strips with different vegetation
A - Papers appearing in refereed journals
Dlamini, J., Cardenas, L. M., Tesfamariam, E. H., Dunn, R. M., Hawkins, J. M. B., Blackwell, M. S. A., Evans, J. and Collins, A. L. 2021. Soil methane (CH4) fluxes in cropland with permanent pasture and riparian buffer strips with different vegetation. Journal of Plant Nutrition and Soil Science. https://doi.org/10.1002/jpln.202000473
Investigation of the soil properties that affect Olsen P critical values in different soil types and impact on P fertiliser recommendations
A - Papers appearing in refereed journals
Tandy, S., Hawkins, J. M. B., Dunham, S. J., Hernandez, J. M. B., Granger, S. J., Yuan, H., McGrath, S. P. and Blackwell, M. S. A. 2021. Investigation of the soil properties that affect Olsen P critical values in different soil types and impact on P fertiliser recommendations. European Journal of Soil Science. 72 (4), pp. 1802-1816. https://doi.org/10.1111/ejss.13082
Evaluating the potential of different carbon sources to promote denitrification
A - Papers appearing in refereed journals
Dlamini, J. C., Chadwick, D. R., Hawkins, J. M. B., Martinez, J., Scholefield, D., Ma, Y. and Cardenas, L. M. 2020. Evaluating the potential of different carbon sources to promote denitrification. The Journal of Agricultural Science. 158 (3), pp. 194-205. https://doi.org/10.1017/S0021859620000520
Fertilizer produced from abattoir waste can contribute to phosphorus sustainability, and biofortify crops with minerals
A - Papers appearing in refereed journals
Darch, T., Dunn, R. M., Guy, A., Hawkins, J. M. B., Ash, M., Frimpong, K. A. and Blackwell, M. S. A. 2019. Fertilizer produced from abattoir waste can contribute to phosphorus sustainability, and biofortify crops with minerals. PLOS ONE. 14 (9), p. e0221647. https://doi.org/10.1371/journal.pone.0221647
Rothamsted Long-term experiments : guide to the classical and other long-term experiments, datasets and sample archive
E - Books edited/written by staff member, alone/with others
Macdonald, A. J., Poulton, P. R., Clark, I. M., Scott, T., Glendining, M. J., Perryman, S. A. M., Storkey, J., Bell, J. R., Shield, I. F., Mcmillan, V. E. and Hawkins, J. M. B. Macdonald, A. J. (ed.) 2018. Rothamsted Long-term experiments : guide to the classical and other long-term experiments, datasets and sample archive. Rothamsted Research, Harpenden.
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
Roles of instrumented farm-scale trials in trade-off assessments of pasture-based ruminant production systems
A - Papers appearing in refereed journals
Takahashi, T., Harris, P., Blackwell, M. S. A., Cardenas, L. M., Collins, A. L., Dungait, J. A. J., Hawkins, J. M. B., Misselbrook, T. H., McAuliffe, G. A., McFadzean, J. N., Murray, P. J., Orr, R. J., Rivero, M. J., Wu, L. and Lee, M. R. F. 2018. Roles of instrumented farm-scale trials in trade-off assessments of pasture-based ruminant production systems. Animal. 12 (8), pp. 1766-1776. https://doi.org/10.1017/S1751731118000502
The contribution of farm-scale experiments to the understanding of soil processes and implications for ecosystem services [Guest Editors' Introduction]
A - Papers appearing in refereed journals
Cardenas, L. M., Collins, A. L., Dungait, J. A. J., Hawkins, J. M. B., Chabbi, A. and Hawes, C. 2016. The contribution of farm-scale experiments to the understanding of soil processes and implications for ecosystem services [Guest Editors' Introduction]. European Journal of Soil Science. 67 (4), pp. 359-359. https://doi.org/10.1111/ejss.12360
Morphological responses of wheat (Triticum aestivum L.) roots to phosphorus supply in two contrasting soils
A - Papers appearing in refereed journals
Yuan, H-M., Blackwell, M. S. A., McGrath, S. P., George, T. S., Granger, S. H., Hawkins, J. M. B., Dunham, S. and Shen, J. B. 2016. Morphological responses of wheat (Triticum aestivum L.) roots to phosphorus supply in two contrasting soils. The Journal of Agricultural Science. 154 (1), pp. 98-108. https://doi.org/10.1017/s0021859615000702
Assessment of bioavailable organic phosphorus in tropical forest soils by organic acid extraction and phosphatase hydrolysis
A - Papers appearing in refereed journals
Darch, T., Blackwell, M. S. A., Chadwick, D. R., Haygarth, P. M., Hawkins, J. M. B. and Turner, B. L. 2016. Assessment of bioavailable organic phosphorus in tropical forest soils by organic acid extraction and phosphatase hydrolysis. Geoderma. 284 (15 December), pp. 93-102. https://doi.org/10.1016/j.geoderma.2016.08.018
The North Wyke Farm Platform: effect of temperate grassland farming systems on soil moisture contents, runoff and associated water quality dynamics
A - Papers appearing in refereed journals
Orr, R. J., Murray, P. J., Eyles, C. J., Blackwell, M. S. A., Cardenas, L. M., Collins, A. L., Dungait, J. A. J., Goulding, K. W. T., Griffith, B. A., Gurr, S. J., Harris, P., Hawkins, J. M. B., Misselbrook, T. H., Rawlings, C. J., Shepherd, A., Sint, H. M., Takahashi, T., Tozer, K. N., Whitmore, A. P., Wu, L. and Lee, M. R. F. 2016. The North Wyke Farm Platform: effect of temperate grassland farming systems on soil moisture contents, runoff and associated water quality dynamics. European Journal of Soil Science. 67 (4), pp. 374-385. https://doi.org/10.1111/ejss.12350
Using 31P-NMR to investigate dynamics of soil phosphorus compounds in the Rothamsted Long Term Experiments
C2 - Non-edited contributions to conferences
Blackwell, M. S. A., Turner, B., Granger, S. J., Hooper, A. M., Darch, T., Hawkins, J. M. B., Yuan, H. and McGrath, S. P. 2015. Using 31P-NMR to investigate dynamics of soil phosphorus compounds in the Rothamsted Long Term Experiments. EGU.
Dissolved phosphorus retention in buffer strips: influence of slope and soil type
A - Papers appearing in refereed journals
Darch, T., Carswell, A. M., Blackwell, M. S. A., Hawkins, J. M. B., Haygarth, P. M. and Chadwick, D. 2015. Dissolved phosphorus retention in buffer strips: influence of slope and soil type. Journal of Environmental Quality. 44, pp. 1216-1224. https://doi.org/10.2134/jeq2014.10.0440
The North Wyke Farm Platform, a national capability for research into sustainability of temperate agricultural grassland management: data and modelling opportunities
C2 - Non-edited contributions to conferences
Harris, P., Griffith, B. A., Shepherd, A., Peukert, S., Hawkins, J. M. B., Elyes, C., Whitmore, A. P., Blackwell, M. S. A., Brazier, R. E., Cardenas, L. M., Wu, L., Dungait, J. A. J., Collins, A. L., Gurr, S. J., Murray, P. J., Goulding, K. W. T. and Orr, R. J. 2014. The North Wyke Farm Platform, a national capability for research into sustainability of temperate agricultural grassland management: data and modelling opportunities. Abstracts Tereno International Conference: from Observation to Prediction in Terrestrial Systems, Bonn, 29 September-2 October 2014 . pp. P2-07
Changes in wheat root morphology under different phosphorus fertiliser supply rates
C2 - Non-edited contributions to conferences
Blackwell, M. S. A., Yuan, H., McGrath, S. P., Granger, S. J., Hawkins, J. M. B., Dunham, S. J., Hooper, A. M., George, T. and Shen, J. 2014. Changes in wheat root morphology under different phosphorus fertiliser supply rates. Abstracts 5th Conference on Phosphorus in Soils and Plants, Montpellier, 26-29 August 2014 . pp. P242
Final Report Defra Project WQ0126. Modular approaches to the control of diffuse agricultural pollution: buffer zones, bioreactors, ditches and ponds
D1 - Technical reports: non-confidential
Hawkins, J. M. B. and Blackwell, M. S. A. 2014. Final Report Defra Project WQ0126. Modular approaches to the control of diffuse agricultural pollution: buffer zones, bioreactors, ditches and ponds. Department for Environment, Food & Rural Affairs (DEFRA).
A meta-analysis of organic and inorganic phosphorus in organic fertilizers, soils and water: implications for water quality
A - Papers appearing in refereed journals
Darch, T., Blackwell, M. S. A., Hawkins, J. M. B., Haygarth, P. M. and Chadwick, D. R. 2014. A meta-analysis of organic and inorganic phosphorus in organic fertilizers, soils and water: implications for water quality. Critical Reviews in Environmental Science and Technology. 44, pp. 2172-2202. https://doi.org/10.1080/10643389.2013.790752
The North Wyke Farm Platform: a new UK national capability for research into sustainability of agricultural temperate grassland management
C2 - Non-edited contributions to conferences
Murray, P. J., Griffith, B. A., Orr, R. J., Shepherd, A., Blackwell, M. S. A., Hawkins, J. M. B. and Peukert, S. 2013. The North Wyke Farm Platform: a new UK national capability for research into sustainability of agricultural temperate grassland management. Michalk, D. L. (ed.) Proceedings 22nd International Grassland Congress, Sydney, 15-19 September 2013 . New South Wales Dept of Primary Industry, Orange. pp. 1931-1933
North Wyke Farm Platform: methodologies used in the remote sensing of the quantity and quality of drainage water
C2 - Non-edited contributions to conferences
Griffith, B. A., Hawkins, J. M. B., Orr, R. J., Blackwell, M. S. A. and Murray, P. J. 2013. North Wyke Farm Platform: methodologies used in the remote sensing of the quantity and quality of drainage water. Michalk, D. L. (ed.) Proceedings 22nd International Grassland Congress, Sydney, 15-19 September 2013 . New South Wales Dept of Primary Industry, Orange. pp. 1453-1455
Export of dissolved organic carbon and nitrate from grassland in winter using high temporal resolution, in situ UV sensing
A - Papers appearing in refereed journals
Sandford, R. C., Hawkins, J. M. B., Bol, R. and Worsfold, P. J. 2013. Export of dissolved organic carbon and nitrate from grassland in winter using high temporal resolution, in situ UV sensing. Science of the Total Environment. 456-457, pp. 384-391. https://doi.org/10.1016/j.scitotenv.2013.02.078
A novel application of natural fluorescence to understand the sources and transport pathways of pollutants from livestock farming in small headwater catchments
A - Papers appearing in refereed journals
Old, G. H., Naden, P. S., Granger, S. J., Bilotta, G. S., Brazier, R. E., Macleod, C. J. A., Krueger, T., Bol, R., Hawkins, J. M. B., Haygarth, P. M. and Freer, J. 2012. A novel application of natural fluorescence to understand the sources and transport pathways of pollutants from livestock farming in small headwater catchments. Science of the Total Environment. 417-418, pp. 169-182. https://doi.org/10.1016/j.scitotenv.2011.12.013
Comparing empirical models for sediment and phosphorus transfer from soils to water at field and catchment scale under data uncertainty
A - Papers appearing in refereed journals
Krueger, T., Quinton, J. N., Freer, J., Macleod, C. J. A., Bilotta, G. S., Brazier, R. E., Hawkins, J. M. B. and Haygarth, P. M. 2012. Comparing empirical models for sediment and phosphorus transfer from soils to water at field and catchment scale under data uncertainty. European Journal of Soil Science. 63 (2), pp. 211-223. https://doi.org/10.1111/j.1365-2389.2011.01419.x
Testing Greenfield run-off estimation techniques using high-resolution field observations
A - Papers appearing in refereed journals
Rodda, H. J. E. and Hawkins, J. M. B. 2012. Testing Greenfield run-off estimation techniques using high-resolution field observations. Journal of Flood Risk Management. 5, pp. 366-375. https://doi.org/10.1111/j.1753-318X.2012.01156.x
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
Using artificial fluorescent particles as tracers of livestock wastes within an agricultural catchment
A - Papers appearing in refereed journals
Granger, S. J., Bol, R., Hawkins, J. M. B., White, S. M., Naden, P. S., Old, G. H., Marsh, J. K., Bilotta, G. S., Brazier, R. E., Macleod, C. J. A. and Haygarth, P. M. 2011. Using artificial fluorescent particles as tracers of livestock wastes within an agricultural catchment. Science of the Total Environment. 409, pp. 1095-1103. https://doi.org/10.1016/j.scitotenv.2010.12.005
Assessment of natural fluorescence as a tracer of diffuse agricultural pollution from slurry spreading on intensely-farmed grasslands
A - Papers appearing in refereed journals
Naden, P. S., Old, G. H., Eliot-Laize, C., Granger, S. J., Hawkins, J. M. B., Bol, R. and Haygarth, P. M. 2010. Assessment of natural fluorescence as a tracer of diffuse agricultural pollution from slurry spreading on intensely-farmed grasslands. Water Research. 44, pp. 1701-1712. https://doi.org/10.1016/j.watres.2009.11.038
Assessing catchment-scale erosion and yields of suspended solids from improved temperate grassland
A - Papers appearing in refereed journals
Bilotta, G. S., Krueger, T., Brazier, R. E., Butler, P., Freer, J., Hawkins, J. M. B., Haygarth, P. M., Macleod, C. J. A. and Quinton, J. N. 2010. Assessing catchment-scale erosion and yields of suspended solids from improved temperate grassland. Journal of Environmental Monitoring. 12, pp. 731-739. https://doi.org/10.1039/b921584k
High temporal resolution monitoring of multiple pollutant responses in drainage from an intensively managed grassland catchment caused by a summer storm
A - Papers appearing in refereed journals
Granger, S. J., Hawkins, J. M. B., Bol, R., White, S. M., Naden, P., Old, G., Bilotta, G. S., Brazier, R. E., Macleod, C. J. A. and Haygarth, P. M. 2010. High temporal resolution monitoring of multiple pollutant responses in drainage from an intensively managed grassland catchment caused by a summer storm. Water Air And Soil Pollution. 205, pp. 377-393. https://doi.org/10.1007/s11270-009-0083-z
The wavelet packet transform: a technique for investigating temporal variation of river water solutes
A - Papers appearing in refereed journals
Milne, A. E., Macleod, C. J. A., Haygarth, P. M., Hawkins, J. M. B. and Lark, R. M. 2009. The wavelet packet transform: a technique for investigating temporal variation of river water solutes. Journal of Hydrology. 379 (1-2), pp. 1-19. https://doi.org/10.1016/j.jhydrol.2009.09.038
Grasslands, sediment, colloids and phosphorus: an interdisciplinary team approach with the 'GrasP' project
C1 - Edited contributions to conferences/learned societies
Macleod, C. J. A., Bilotta, G. S., Bol, R., Brazier, R. E., Butler, P. J., Freer, J., Gimbert, L. J., Granger, S. J., Hawkins, J. M. B., Krueger, T., Naden, P. S., Old, G., Quinton, J. N., Worsfold. P. and Haygarth, P. M. 2007. Grasslands, sediment, colloids and phosphorus: an interdisciplinary team approach with the 'GrasP' project. Heckrath, G., Rubaek, G. H. and Kronvang, B. (ed.) Diffuse Phosphorus Loss: Risk Assessment, Mitigation Options and Ecological Effects in River Basins. 5th International Phosphorus Workshop (IPW5), Silkeborg, Denmark, 3-7 September 2007. pp. 193-196
Blueprints for sustainable nutrient use in dairy grassland-based production
C2 - Non-edited contributions to conferences
Del Prado, A., Cardenas, L. M., Hawkins, J. M. B., Brown, L., Cuttle, S. P., Jewkes, E. C. and Scholefield, D. 2007. Blueprints for sustainable nutrient use in dairy grassland-based production. 15th N Workshop, 'Towards a better efficiency in N use ', Lleida, Spain, May 28-30, 2007.
Dissolved free and combined amino acids in surface runoff and drainage waters from drained and undrained grassland under different fertilizer management
A - Papers appearing in refereed journals
Hawkins, J. M. B., Scholefield, D. and Braven, J. 2006. Dissolved free and combined amino acids in surface runoff and drainage waters from drained and undrained grassland under different fertilizer management. Environmental Science & Technology. 40 (16), pp. 4887-4893. https://doi.org/10.1021/es052532r
Cattle slurry amended with nitrification inhibitors: effects on nitrous oxide, dinitrogen and methane emissions
C1 - Edited contributions to conferences/learned societies
Caneiro, J., Cardenas, L. M., Hatch, D., Trindad, H., Hawkins, J. M. B., Scholefield, D. and Chadwick, D. 2005. Cattle slurry amended with nitrification inhibitors: effects on nitrous oxide, dinitrogen and methane emissions. Proceedings of the XX International grassland congress, Dublin, Ireland, 26 June - 2 July 2005. pp. p575
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
Use of a 2-pool model to evaluate the effect of fertiliser application on nitrogen emissions from grassland soils
C1 - Edited contributions to conferences/learned societies
Cardenas, L. M., Hawkins, J. M. B., Chadwick, D. R. and Scholefield, D. 2004. Use of a 2-pool model to evaluate the effect of fertiliser application on nitrogen emissions from grassland soils. 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. 303-305
Nitrogen emissions from soils
B - Book chapters etc edited externally
Ganzeveld, L., Li, C., Cardenas, L. M., Hawkins, J. M. B. and Kirkman, G. 2004. Nitrogen emissions from soils. in: Granier, C., Artaxo, P. and Reeves, C. E. (ed.) Emissions of atmospheric trace compounds (Advances in global change research series, 18) Kluwer Academic Publishers, Dordrecht, Netherlands. pp. 171-238
Use of a 2-pool model to evaluate the effect of fertiliser application on nitrogen emissions from grassland soils
C2 - Non-edited contributions to conferences
Cardenas, L. M., Hawkins, J. M. B., Chadwick, D. R. and Scholefield, D. 2003. Use of a 2-pool model to evaluate the effect of fertiliser application on nitrogen emissions from grassland soils. Controlling N flows and losses. Abstracts 12th Nitrogen Workshop, Exeter, 21-24 September 2003.
Dual isotope and isotopomer ratios of N2O emitted from a temperate grassland soil after fertiliser application
A - Papers appearing in refereed journals
Bol, R., Toyoda, S., Yamulki, S., Hawkins, J. M. B., Cardenas, L. M. and Yoshida, N. 2003. Dual isotope and isotopomer ratios of N2O emitted from a temperate grassland soil after fertiliser application. Rapid Communications in Mass Spectrometry. 17 (22), pp. 2550-2556. https://doi.org/10.1002/rcm.1223
Biogenic gas emissions from soils measured using a new automated laboratory incubation system
A - Papers appearing in refereed journals
Cardenas, L. M., Hawkins, J. M. B., Chadwick, D. and Scholefield, D. 2003. Biogenic gas emissions from soils measured using a new automated laboratory incubation system. Soil Biology and Biochemistry. 35 (6), pp. 867-870. https://doi.org/10.1016/S0038-0717(03)00092-0
Effect of carbon availability on N2 and N2O emissions
C2 - Non-edited contributions to conferences
Cardenas, L. M., Hawkins, J. M. B., Martinez, J., Chadwick, D. R. and Scholefield, D. 2002. Effect of carbon availability on N2 and N2O emissions. Abstracts. CEMAGREF Workshop, Rennes, France, 10-12 June 2001.
Study of denitrification in grassland soils in relation to carbon application
C2 - Non-edited contributions to conferences
Cardenas, L. M., Hawkins, J. M. B., Chadwick, D. R. and Scholefield, D. 2002. Study of denitrification in grassland soils in relation to carbon application. Poster BIOGEMON 2002. 4th International Symposium on Ecosystem Behaviour, University of Reading, 17-21 August 2002.
Soil nitrogen emissions
C2 - Non-edited contributions to conferences
Ganzeveld, L., Li, C., Cardenas, L. M., Hawkins, J. M. B. and Kirkman, G. 2001. Soil nitrogen emissions. Emissions of Chemical Species and Aerosols into the Atmosphere. Proceedings of Workshop, Paris, France, 19-22 June 2001.
Application of an improved technique to evaluate controls on nitrous (N2O) emissions from grassland soils
C2 - Non-edited contributions to conferences
Cardenas, L. M., Hawkins, J. M. B., Chadwick, D. R. and Scholefield, D. 2001. Application of an improved technique to evaluate controls on nitrous (N2O) emissions from grassland soils. Proceedings of an International Workshop on Emissions of Chemical Species and Aerosols into the Atmosphere, Paris, France, 19-22 June 2001.
Leaching of dissolved organic N from grass - white clover pasture in SW England
C1 - Edited contributions to conferences/learned societies
Hawkins, J. M. B. and Scholefield, D. 2000. Leaching of dissolved organic N from grass - white clover pasture in SW England. Soegaard, K., Ohlsson, C., Hutchings, N. J., Kristensen, T. and Sehested, J. (ed.) Grassland Farming: Balancing Environmental and Economic Demands. Proceedings of the 18th General Meeting of the European Grassland Federation, Aalborg, Denmark, 22-25 May 2000 (Grassland Science in Europe, Vol 5). pp. 378-380
Dissolved free amino acids in surface lateral drainage from grazed grassland
C2 - Non-edited contributions to conferences
Hawkins, J. M. B. and Scholefield, D. 1999. Dissolved free amino acids in surface lateral drainage from grazed grassland. Proceedings of the Tenth Nitrogen Workshop, Copenhagen, 1999. pp. 4pp
Use of a novel incubation technique to measure N2O/N2 following surface or injected application of slurry
C1 - Edited contributions to conferences/learned societies
Scholefield, D., Chadwick, D. R. and Hawkins, J. M. B. 1999. Use of a novel incubation technique to measure N2O/N2 following surface or injected application of slurry. Buchanan-Smith, J. G., Bailey, L. D. and McCaughey, P. (ed.) Grasslands 2000, Proceedings of the XVIII International Grassland Congress, Winnipeg, Manitoba, Saskatoon, Saskatchewan, Canada, 8-17 June 1997 (Vol 2). Canadian Forage Council, Can Soc Agron, Can Soc Anim Sci. pp. 20-3 - 20-4
The potential of amino acid distributions as diagnostics of soil quality
B - Book chapters etc edited externally
Hawkins, J. M. B., Scholefield, D. and Bol, R. 1998. The potential of amino acid distributions as diagnostics of soil quality. in: Nagy, G. and Peto, K. (ed.) Ecological Aspects of Grassland Management, Proceedings of the 17th General Meeting of the European Grassland Federation, Debrecen Agricultural University, Debrecen, Hungary, 18-21 May 1998 British Grassland Society (BGS) Hurley. pp. 555-558
Use of a flowing helium atmosphere incubation technique to measure the effects of denitrification controls applied to intact cores of a clay soil
A - Papers appearing in refereed journals
Scholefield, D., Hawkins, J. M. B. and Jackson, S. M. 1997. Use of a flowing helium atmosphere incubation technique to measure the effects of denitrification controls applied to intact cores of a clay soil. Soil Biology and Biochemistry. 29 (9-10), pp. 1337-1344. https://doi.org/10.1016/S0038-0717(97)00059-X
The extent and pathways of transfer of organic N from fertilised and unfertilised grassland
C2 - Non-edited contributions to conferences
Hawkins, J. M. B. and Scholefield, D. 1997. The extent and pathways of transfer of organic N from fertilised and unfertilised grassland. 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. 97-98
Development of a helium atmosphere soil incubation technique for direct measurement of nitrous oxide and dinitrogen fluxes during denitrification
A - Papers appearing in refereed journals
Scholefield, D., Hawkins, J. M. B. and Jackson, S. M. 1997. Development of a helium atmosphere soil incubation technique for direct measurement of nitrous oxide and dinitrogen fluxes during denitrification. Soil Biology and Biochemistry. 29 (9-10), pp. 1345-1352.
Determination of controls over denitrification using a flowing helium atmosphere system
B - Book chapters etc edited externally
Scholefield, D. and Hawkins, J. M. B. 1997. Determination of controls over denitrification using a flowing helium atmosphere system. in: Jarvis, S. C. and Pain, B. F. (ed.) Gaseous Nitrogen Emissions from Grasslands Wallingford, Oxon CAB International (CABI). pp. 27-36
Molybdate-reactive phosphorus losses in surface and drainage waters from permanent grassland
A - Papers appearing in refereed journals
Hawkins, J. M. B. and Scholefield, D. 1996. Molybdate-reactive phosphorus losses in surface and drainage waters from permanent grassland. Journal of Environmental Quality. 25 (4), pp. 727-732. https://doi.org/10.2134/jeq1996.00472425002500040012x
Long-term study on the transfer of phosphorus from grassland soil to surface waters
B - Book chapters etc edited externally
Hawkins, J. M. B., Haygarth, P. M., Jarvis, S. C. and Scholefield, D. 1996. Long-term study on the transfer of phosphorus from grassland soil to surface waters. in: Petchey, A. M., D'Arcy, B. J. and Trust, C. A. (ed.) Diffuse Pollution and Agriculture Scottish Agricultural College (SAC) Nevisprint Ltd. pp. 252-254
Use of a `flow-over' incubation technique without acetylene blocking to measure the effect of the factors controlling denitrification in a grassland soil
C2 - Non-edited contributions to conferences
Scholefield, D., Hawkins, J. M. B. and Jackson, S. M. 1994. Use of a `flow-over' incubation technique without acetylene blocking to measure the effect of the factors controlling denitrification in a grassland soil. Progress in Nitrogen Cycling, the Eighth Nitrogen Cycling Workshop, University of Ghent, Belgium, 5-9 September 1994.
Development of a `flow-over' technique to measure N2 and N2O fluxes during soil incubation
C2 - Non-edited contributions to conferences
Hawkins, J. M. B. and Scholefield, D. 1994. Development of a `flow-over' technique to measure N2 and N2O fluxes during soil incubation. Progress in Nitrogen Cycling, the Eighth Nitrogen Cycling Workshop, University of Ghent, Belgium, 5-9 September 1994.
The effects of nitrate, water content and temperature on denitrification in a grassland soil measured using a "flow-over" technique without acetylene blocking
C2 - Non-edited contributions to conferences
Scholefield, D., Hawkins, J. M. B. and Jackson, S. M. 1993. The effects of nitrate, water content and temperature on denitrification in a grassland soil measured using a "flow-over" technique without acetylene blocking. Fourth AFRC Meeting on Plant and Soil Nitrogen Metabolism, 15-17 December 1993, Silsoe, UK.
Nitrate leaching from grazed grassland lysimeters: effects of fertilizer input, field drainage, age of sward and patterns of weather
A - Papers appearing in refereed journals
Scholefield, D., Tyson, K. C., Garwood, E. A., Armstrong, A. C., Hawkins, J. M. B. and Stone, A. C. 1993. Nitrate leaching from grazed grassland lysimeters: effects of fertilizer input, field drainage, age of sward and patterns of weather. Journal of Soil Science. 44, pp. 601-613.
Measurement of nitrogen and nitrous oxide fluxes using a novel technique
C2 - Non-edited contributions to conferences
Hawkins, J. M. B. and Scholefield, D. 1993. Measurement of nitrogen and nitrous oxide fluxes using a novel technique. Fourth AFRC Meeting on Plant and Soil Nitrogen Metabolism, 15-17 December 1993, Silsoe, UK.
Final report on the AFRC-ADAS Drainage Experiment 1982-1992. North Wyke Research Station (28 pp.)
D1 - Technical reports: non-confidential
Tyson, K. C., Hawkins, J. M. B. and Stone, A. C. 1993. Final report on the AFRC-ADAS Drainage Experiment 1982-1992. North Wyke Research Station (28 pp.).
The North Wyke grassland drainage experiment
G - Articles in popular magazines and other technical publications
Tyson, K. C., Hawkins, J. M. B. and Stone, A. C. 1992. The North Wyke grassland drainage experiment. Grass Farmer . 42, pp. 21-23.
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