Browsing by Author "Schoper, R. P."
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Item Boron for Minnesota Soils (Revised 1980)(University of Minnesota. Agricultural Extension Service, 1980) Overdahl, C. J.; Schoper, R. P.Item Magnesium for Minnesota Soils(University of Minnesota. Agricultural Extension Service, 1978) Overdahl, C. J.; Schoper, R. P.Item Pocket guide to fertilizer recommendations(University of Minnesota. Agricultural Extension Service, 1978) Schoper, R. P.; Overdahl, C. J.; Simkins, C. A.Item Zinc for Minnesota Soils(University of Minnesota. Agricultural Extension Service, 1978) Overdahl, C. J.; Schoper, R. P.