Field Office Technical Guideefotg.sc.egov.usda.gov/references/public/CA/Agronomy...FERTILIZER...
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Field Office Technical Guideefotg.sc.egov.usda.gov/references/public/CA/Agronomy...FERTILIZER PLACEMENT FOR CEREAL ROOT; ACCESS Dr. Steven E. Petrie, agronomist for Unocal Chemicals