6 resultados para Physical-chemical characteristics
em University of Michigan
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Mode of access: Internet.
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Mode of access: Internet.
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Includes index.
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"NOAA--S/T 77-2822."
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Vol. 1. Soils, formation, physical and chemical characteristics and methods of improvement, including tillage, drainage & irrigation -- v. 2. Manures, fertilizers & farm crops, including green manuring and crop rotation -- v. 3. Animal husbandry, including the breeds of live stock, the general principles of breeding, feeding animals; including discussion of ensilage, dairy management on the farm and poultry farming.
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Vol. 4-6 edited by William L. Nastuk.