Phosphorus losses from arable land in England

A - Papers appearing in refereed journals

Catt, J. A., Howse, K. R., Farina, R., Brockie, D., Todd, A. D., Chambers, B. J., Hodgkinson, R., Harris, G. L. and Quinton, J. N. 1998. Phosphorus losses from arable land in England. Soil Use and Management. 14, pp. 168-174. https://doi.org/10.1111/j.1475-2743.1998.tb00636.x

AuthorsCatt, J. A., Howse, K. R., Farina, R., Brockie, D., Todd, A. D., Chambers, B. J., Hodgkinson, R., Harris, G. L. and Quinton, J. N.
Abstract

Concentrations and annual loadings of molybdate reactive P (MRP) and total (including particulate) P (TP) are reported from field drainage, catchment and erosion experiments in England. Annual losses through field drains and in catchment runoff were 0.035-0.74 kg MRP/ha and 0.35-2.64 kg TP/ha, but those in surface runoff from experimental plots measuring erosion were generally much greater (often > 3 kg MRP/ha and up to 32 kg TP/ha in a wet year). Amounts of TP in drainflow and catchment runoff depended upon factors influencing soil dispersibility, such as particle size distribution and calcium carbonate content. The results to date suggest that P losses in surface runoff and erosion from arable fields to water are best limited by: (a) maximizing crop cover, using minimal cultivation practices and where possible planting crop rows across rather than up and down the slope, (b) avoiding cultivation practices that result in dispersion of soil particles, and (c) avoiding application of P fertilizer to wet soils when rainfall is likely soon after application. Consideration should be given to maintaining field drains below peak efficiency to reduce subsurface P losses.

KeywordsSoil Science
Year of Publication1998
JournalSoil Use and Management
Journal citation14, pp. 168-174
Digital Object Identifier (DOI)https://doi.org/10.1111/j.1475-2743.1998.tb00636.x
Open accessPublished as non-open access
Funder project or code220
206
441
Project: 031232
Project: 141430
ISSN02660032
PublisherWiley

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