Soil Fertility, Renewal and Preservation

Pfeiffer, Ehrenfried

Original publication date: 1947
Original publisher: London: Faber and Faber Ltd
Publication status: Out of print

With an introduction by Eve Balfour. Seminal book in the Bio-dynamic farming movement with statistical reports on impressive replicated studies on the effects of BD practices on health and yields. The discussions of BD preparations predates and superceeds the current fad of EM sprays and drenches.

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