Ours soils and their management :
Donahue, Roy L.
Ours soils and their management : increasing production through environmental soil and water conservation Roy L. Donahue, Roy H. Follett and Rodney W. Tulloch - 4th ed. - U.S.A : The Interstate , 1976 - xvii, 794 p.
Soil acidity Soil management Soil science Tulloch Rodney W.
631.4 / DON/O
Ours soils and their management : increasing production through environmental soil and water conservation Roy L. Donahue, Roy H. Follett and Rodney W. Tulloch - 4th ed. - U.S.A : The Interstate , 1976 - xvii, 794 p.
Soil acidity Soil management Soil science Tulloch Rodney W.
631.4 / DON/O
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