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jerry v mannering
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Tillage methods to reduce runoff and erosion in the Corn Belt
Jerry V. Mannering · Agricultural Research Service, U.S. Department of Agriculture
14 sayfa · 1968
Tillage / Soil conservation
Yazar
1 cilt bulundu.
Jerry V. Mannering · Agricultural Research Service, U.S. Department of Agriculture
14 sayfa · 1968
Tillage / Soil conservation