309 resultados para Soil conservation projects
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Mode of access: Internet.
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Mode of access: Internet.
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Prepared in cooperation with Kansas Agricultural Experiment Station.
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Mode of access: Internet.
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"This report has been published by the Maryland Chapter, Friends of the Land, P.O. Box 31, Frederick, Md. The professional services of Gaver & Winebrener, Baltimore, Md., who prepared the report, were donated in the interest of conservation."
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"A compilation of practical tried-and-proved methods which have been developed by state agricultural colleges and extension workers, U.S. soil conservation experts, and county agricultural agents."--p. [2] of cover.
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Bibliography: leaf 27.
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"Literature cited": p. 85.
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Shipping list no.: 89-212-P.
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Shipping list no.: 91-283-P.
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"October 1936."