Effects of organic and inorganic fertilizers on the vegetative and reproductive parts of some selected varieties of cowpea (Vigna unguiculata)

Abstract

This is an attempt to evaluate the effects of organic and inorganic fertilizer on yield of cowpea. The seeds of the selected cowpea varieties were sown in to a plastic pot of size six (6).The variety received the following treatments sandy soil {1104.379} organic manure {524.00g} and inorganic fertilizer {14.00g}, a combination of organic manure {1524.00g} and inorganic fertilizer {4.00g} and also combination of sandy soil and inorganic fertilizer {4.00}.The set up was randomized design (RBD) with three replicates and a control. Data for plant height (cm), stem circumference, leaf area, number of leaves per plant and number of pods per plant were taken at two weeks interval for a period of 10 weeks. The results showed that, the combination of organic manure and inorganic fertilizer yielded higher than either organic manure or inorganic fertilizer applied alone.