DETERMINATION OF TOTAL, ORGANIC, AND AVAILABLE FORMS OF PHOSPHORUS IN SOILS
Illinois Agricultural Experiment Station 2 Chief and associate, soil fertility, department of agronomy, respectively.
Illinois Agricultural Experiment Station 2 Chief and associate, soil fertility, department of agronomy, respectively.
Abstract Soil, leaf, and grain natural 15 N abundance was measured in corn ( Zea mays L.) and soybean ( Glycine max L.) plots which had received various rates of fertilizer N fo...
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