@ARTICLE {CARSKY:1995a, title = {Response of dry season sorghum to supplemental irrigation and fertilizer N and P on Vertisols in northern Cameroon}, author = {Carsky, R. and Ndikawa, R. and Singh, L. and Rao, M. R. }, journal = {Agricultural Water Management}, year = {1995}, volume = {28}, number = {1}, pages = {1--8}, issn = {0378-3774}, }