Alternative agriculture. Committee on the role alternative farming methods in modern production agriculture
1989
Robbins, G.J. (ed.)
In the 1930s, crop yields in the United States, England, India, and Argentina were essentially the same. Since the times, researchers, scientists, and a host of federal policies have helped U.S. farmers dramatically increase....
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Este registro bibliográfico ha sido proporcionado por Centro para el Desarrollo Agropecuario y Forestal