Oklahoma State University
University of Nebraska Nutrient Management
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Soil Fertility Handbook, Oklahoma State University |
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Soil Fertility
Handbook, 2006 (Microsoft WORD file, click here or on book cover
below) |
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Soil
Fertility Handbook, 2000 (Microsoft WORD file, click here or on book
cover below)
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http://www.ianrpubs.unl.edu/sendIt/ec155.pdf University of Nebraska Nutrient Management |
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