Poster / Presentation
Effect of phosphorus (P) application on nutrient uptake, biomass, pod and seed formation in cowpea (Vigna unguiculata (L.) Walp))
Abstract
Phosphorous (P) deficiency is a serious problem which limits the
productivity of cowpea in sub-Saharan Africa.
• P deficiency affects negatively the formation of nodule (1, 2) and the
symbiotic fixation of N2 by limiting growth and survival of rhizobia (1, 3)
in legume crops.
• According to our previous study, P and N uptake in cowpea are
significantly correlated (r = 0.817, P < 0.01) (4), that is, P uptake affects N
uptake strongly.
• Field experiment was conducted to elucidate the effects of P application
on P and N uptake, growth status, and yield of cowpea genotypes