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paul w unger
5 cilt bulundu.
Cilt sonuçları
Soil and water conservation handbook
Paul W. Unger · Food Products Press
266 sayfa · 2006
Soil conservation / Water conservation / Handbooks, manuals / Encyclopedias / TECHNOLOGY & ENGINEERING / Agriculture / General
Managing Agricultural Residues
Paul W. Unger · Lewis Publishers
448 sayfa · 1994
Agricultural wastes / Crop residue management / Conservation tillage
Tillage systems for soil and water conservation
Paul W. Unger · Food and Agriculture Organization of the United Nations
278 sayfa · 1984
Conservation tillage / Cropping systems / Soil conservation / Tillage / Water conservation
Dryland Agriculture
Gary A. Peterson, Paul W. Unger, William A. Payne · Wiley & Sons, Limited, John
Sayfa sayısı yok · 2015
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