@ARTICLE {EWANSIHA:2015b, title = {Response of cowpea to sowing date and maize plant population in a Sudan savannah environment}, author = {Ewansiha, S. U. * and Kamara, A. and Chiezey, U. F. * and Onyibe, J. E. *}, journal = {Tropical Agriculture}, year = {2015}, month = {January}, volume = {92}, number = {1}, pages = {80--91}, issn = {0041-3216}, note = {WAHub; CRP Grain Legumes; Cowpea; CRP Maize; Maize}, }