David O. Hosu
Effect of phosphorus (P) rates and weeding frequency on the growth and grain yield of extra early cowpea (Vigna unguiculata L. Walp) in the forest-savanna agro-ecological zone of southwest Nigeria
Department of Plant Physiology and Crop Production, Federal University of Agriculture, Abeokuta, Nigeria (1,2,3,5,6)
Department of Soil Science, Federal University of Agriculture, Abeokuta, Nigeria (4)
Abstract:
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