Fertilizers and Environment Proceedings of the International Symposium “Fertilizers and Environment”, held in Salamanca, Spain, 26–29, September, 1994 / edited by Claudio Rodriguez Barrueco.
Food production remains the highest agricultural priority, subject to the constraint that it be done in harmony with nature, or at least with minimum environmental pollution. The amount of fertilizer applied can be controlled using modern application techniques, including soil and crop management, g...
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