Browsing by Subject "Crop yields"
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Item Nitrogen fertilizers help increase yields(1974) MacGregor, John M.; University of Minnesota, Agricultural Extension ServiceRevised 1974.Item Tillage practices in South Central Minnesota.(University of Minnesota, Agricultural Extension Service, 1979) University of Minnesota, Agricultural Extension Service; Bauder, J.w.; Randall, G.W.; Swan, J.B.; True, J.A.; Halsey, C.F.