University of Illinois Agricultural Experiment Station Bulletin No. 94: Nitrogen Bacteria and Legumes
With special reference to red clover, cowpeas, soy beans,
alfalfa, and sweet clover, on Illinois soils
Free

University of Illinois Agricultural Experiment Station Bulletin No. 94: Nitrogen Bacteria and Legumes With special reference to red clover, cowpeas, soy beans, alfalfa, and sweet clover, on Illinois soils

By Cyril G. Hopkins
Free
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