Natural Farming carries a simple but widely overlooked message: healthy soil makes healthy plants, which in turn make healthy animals and healthy people. The book explores the consequences in the soil of applications of superphosphate and other artificial fertilizers over decades, and explains soil chemistry in terms that every farmer can understand. It describes the exact role of each mineral and vitamin, both in the soil and in the body. And...
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Engineering Science Science & Math Science & Scientists Science & Technology Technology