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manning h becker
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Sprinkler irrigation
Manning H. Becker · Agricultural Experiment Station, Oregon State College
24 sayfa · 1953
Economic aspects / Economic aspects of Sprinkler irrigation / Sprinkler irrigation
Factors affecting farm earnings and organization
Manning H. Becker · Agricultural Experiment Station, Oregon State College
23 sayfa · 1949
Farm management / Farm income
Sprinkler irrigation costs for vegetable crops in the Willamette Valley, Oregon
Manning H. Becker · Agricultural Experiment Station, Oregon State College
20 sayfa · 1949
Economic aspects / Economic aspects of Sprinkler irrigation / Irrigation / Sprinkler irrigation / Vegetables