The Importance of Biological Agriculture in a World of Diminishing Resources
Proceedings of the 5th IFOAM International Scientific Conference at the University of Kassel (Germany), August 27-30, 1984
Description:... In this proceedings articles are collected on: soil management, manures and fertilizers, biological agricultural systems, quality of foodstuffs, suitability of plants for low-external input systems, animal welfare and non chemical pest control
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