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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, guaranteeing higher economic profit and lower environmental cost. It is in such a context that the present book addresses the efficient and rational use of mineral and organic fertilizers while preserving environmental quality. The book discusses the impact on surface and groundwaters, soils and crops, and experience of nitrate leaching, denitrification, ammonia volatilization, heavy metal pollution, agricultural and urban waste management, and international and national legislation.
Audience: Agronomists, environmentalists, soil and food chemists, ecologists, policy makers, and managers in the fertilizer industry concerned with the trend of public opinion.

Fertilizers and Environment: Proceedings of the International Symposium "Fertilizers and Environment", held in Salamanca, Spain, 26-29, September, 1994

Brief Preface. Opening speech; Excmo. D.F. Jambrina Sastre. Opening lecture; J.J. Mortvedt. Session I: Fertilizers for food production. Session II: Fertilizers for forest production. Session III: Nutrient cycling and sustainability. Session IVa: Mineral fertilizer management. Session IVb: Organic manure management. Session Va: Fertilizer impact on environment - water, air. Session Vb: Fertilizer impact on environment - soil, crops. Session VI: Code for agricultural practices.