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Seasonal variation in soil mineral nitrogen (Previously NT0102) - NT1206

Practices need to be identified which maximise crop recovery of soil N and most effectively supplement these with fertiliser N, in order to improve guidelines for crop husbandry and efficient fertiliser use on arable crops over a range of soil types. This study will aim to produce such guidelines, on the basis of improved estimation of N levels in soils according to patterns of N applications in recent seasons, estimation of the N offtakes by recent crops, and estimation of the likely losses of N to drainage waters, soil and the atmosphere. A system will be developed for providing national intelligence on patterns of soil mineral N according to season, region and rotation; information obtained from this system will aid policy formulation and will support advice on N application. Data obtained will also be used to develop models of N cycling in arable agriculture.
Time-Scale and Cost
From: 1995

To: 1998

Cost: £278,778
Contractor / Funded Organisations
Fields of Study
Fertilisers and Nitrate Pollution