Progress in studies of nitrate leaching from grassland soils

A - Papers appearing in refereed journals

Jarvis, S. C. 2000. Progress in studies of nitrate leaching from grassland soils. Soil Use and Management. 16 (Supplement), pp. 152-156.

AuthorsJarvis, S. C.
Abstract

The large input of research effort on aspects of nitrate leaching over the last two decades has produced many innovative scientific and practical results. The MAFF Nitrate Programme has enabled considerable progress to be made in unravelling much of the complexity of the grassland nitrogen (N) cycle, and identifying gaps as essential first stages in providing improved managements for N in grassland systems. From a practical standpoint, there have been key outputs which have allowed the identification of options for policy, and which should allow grassland farmers to increase the efficiency of N use throughout their farming system and thereby improve the sustainability of their enterprises. As well as quantifying N transformations, transfers and losses, other important outcomes have been the development of user-friendly models of N cycling (NCYCLE and variants) and an easy to use field kit to determine mineral N in pasture soils. The use of modelling to produce fertilizer recommendations with a Decision Support System and of new approaches developed within the Programme, in particular system synthesis desk studies, and 'farmlet' investigations to determine the consequences of modifying N flows and losses, have allowed us to produce solutions to satisfy the dual aims of meeting environmental and economic production targets.

KeywordsSoil Science
Year of Publication2000
JournalSoil Use and Management
Journal citation16 (Supplement), pp. 152-156
Open accessPublished as non-open access
Funder project or code1
Project: 2430 4009
Project: 2430 5163
Project: 2430 5106
Project: NT 1829
ISSN02660032
PublisherWiley

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