Research Article
Growth and Yield Responses of Cowpea (Vigna unguiculata (L.) Walp) Genotypes to Nitrogen Fertilizer (NPK) Application in the Southern Guinea Savanna Zone of Nigeria
Department of Agronomy, University of Ilorin, P.M.B. 1515, Ilorin, Nigeria
T.V. Ajibade
Department of Agronomy, University of Ilorin, P.M.B. 1515, Ilorin, Nigeria
O.F. Sammuel
Department of Agronomy, University of Ilorin, P.M.B. 1515, Ilorin, Nigeria
B.F. Saadudeen
Department of Agronomy, University of Ilorin, P.M.B. 1515, Ilorin, Nigeria