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Cowpea is an important cultivated grain legume pulse, vegetable and fodder crop of African origin. However, yields have been characteristically low as a result of both abiotic and biotic stresses. Among the abiotic stresses, yield losses due to phosphorus (P) deficiency is an important factor....

Maize productivity among the smallholder farmers in Zambia is generally low, resulting in average national grain yield of 2.3 tons per hectare. This challenge is mainly attributed to low and erratic rainfall, low soil fertility, and poor farming practices. This study was conducted to (i) evaluate...