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Transport of nitrogen in soil water following the application of animal manures to sloping grassland

Parkinson, R. J. and Griffiths, P. and Heathwaite, A. L. (2000) Transport of nitrogen in soil water following the application of animal manures to sloping grassland. Hydrological Sciences Journal, 45 (1). pp. 61-73. ISSN 2150-3435

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Abstract

A field experiment was conducted on a sloping grassland soil in southwest England to investigate the downslope transport of nitrogen in soil water following the application of cattle manure, slurry and inorganic fertilizer. Transport of nitrogen (N) species was monitored on hydrologically isolated plots. Manure (50 t ha−1), slurry (50 m3 ha−1) and fertilizer (250 kg N ha−1) were applied in February/March 1992. Subsurface water movement, by both matrix and preferential flow, was the dominant flow route during the experiment. Subsurface and surface nutrient flow pathways were monitored by analysing soil water and surface runoff for NO3-N, NH4-N and total N. Subsurface flow chemistry was dominated by NO3-N, with concentrations usually between 2 and 5 mg NO3 −N dm−3. Differences between fertilizer and manure treatments and the untreated control were not significant. Significantly elevated NO3-N concentrations were observed in soil water in the buffer zone, indicating the importance of a buffer zone at least 10 m wide between manure spreading zones and an adjacent water course.

Item Type: Article
Journal or Publication Title: Hydrological Sciences Journal
Additional Information: Transport of nitrogen in soil water following the application of animal manures to sloping grassland
Subjects: UNSPECIFIED
Departments: Faculty of Science and Technology > Lancaster Environment Centre
ID Code: 49703
Deposited By: ep_importer_pure
Deposited On: 13 Sep 2011 13:51
Refereed?: Yes
Published?: Published
Last Modified: 09 Apr 2014 22:41
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/49703

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