| Abstrakt: |
The MAFF Nitrate Programme has provided policy makers and the agricultural industry with a much improved understanding of soil nitrogen cycling, and the cost-effectiveness of a range of nitrate reduction strategies. This understanding has been disseminated as improved economically-based advice on fertilizer N inputs to arable and grass crops,and information on the N value of livestock manures as affected by timing and method of application. In addition, strategies for reducingnitrate losses have been developed, including the use of over-wintercover crops, the management of cultivations and crop residues, and the conversion of arable land to low-input grassland. A wide variety of information dissemination methods have been used, including face-to-face discussions, demonstrations, articles in the farming press, booklets aimed at farmers, technical information for advisers and consultants, recommendation reference books and computer-based fertilizer recommendation systems. [ABSTRACT FROM AUTHOR] |
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