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Effect of crop rotation and management practice on nitrate leaching from a sandy soil (Previously NT0110) - NT1805

Long term data are required to assess effectiveness of husbandry changes aimed at reducing nitrate leaching, since resultant increases in soil nitrogen reserves could counteract the initial success of such measures in some cases. This study will aim to examine influences of crop rotation and management on nitrate leaching from a sandy soil. Short and medium-term effects of different management practices (e.g. cover cropping, earlier drilling of cereals, variation of harvest data of root crops, delayed cultivation, straw incorporation and reduction in nitrogen fertilizer use) on nitrate loss will be quantified during an intensive arable rotation. Effects of management practices on yields will also be examined, with resultant data being used to develop and validate models analysing effects of agricultural practice on N balance. Results of the study will be followed through in successive years so that both management and nitrate implications for farms can be evaluated. Data from the study will contribute to knowledge of typical nitrate losses under a range of husbandry, soil and climatic conditions required by hydrologists modelling nitrates in water sources. Data will also contribute to development of modelling of both nitrate leaching and transformations in soil. Repeated measurements on the same plots over several years will be valuable in developing models and understanding the behaviour of N residues in soils.
Project Documents
• Final Report : Effect of crop rotation and management practice on nitrate leaching from a sandy soil (Previously NT0110)   (408k)
Time-Scale and Cost
From: 1995

To: 1998

Cost: £351,503
Contractor / Funded Organisations
Fields of Study
Fertilisers and Nitrate Pollution