Manas, 第 29 卷Manas Publishing Company, 1976 |
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第 1 到 3 筆結果,共 37 筆
第 6 頁
... organic " farms in the American Corn Belt with six- teen comparable conventional farms ( using chemical fer- tilizers and pesticides ) , finding that the value of their crops was about equal , while the organic farms used only one third ...
... organic " farms in the American Corn Belt with six- teen comparable conventional farms ( using chemical fer- tilizers and pesticides ) , finding that the value of their crops was about equal , while the organic farms used only one third ...
第 1 頁
... organic farming and gardening movement , but I wonder if you would talk more specifically about its work and how you got involved ? E.F.S .: In the Thirties Sir Albert Howard wrote An Agri- cultural Testament , a book which questioned ...
... organic farming and gardening movement , but I wonder if you would talk more specifically about its work and how you got involved ? E.F.S .: In the Thirties Sir Albert Howard wrote An Agri- cultural Testament , a book which questioned ...
第 6 頁
... Organic Agriculture Movements - bringing twenty - eight reports on progress around the world . The vigorous activities de- scribed add up to the struggle of a brave young David with the doped - up Goliath of chemical farming . Founded ...
... Organic Agriculture Movements - bringing twenty - eight reports on progress around the world . The vigorous activities de- scribed add up to the struggle of a brave young David with the doped - up Goliath of chemical farming . Founded ...
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