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Subjects
Cropping systems, Wheat, Green manuringPlaces
CaliforniaEdition | Availability |
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A comparison of annual cropping, biennial cropping, and green manures on the yield of wheat
1916, Agricultural Experiment Station
in English
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Feedback?February 14, 2012 | Edited by ImportBot | import new book |
February 10, 2012 | Created by ImportBot | import new book |