@ARTICLE {KAMARA:2011e, title = {Phosphorus effects on growth and yield of groundnut varieties in the tropical savannas of northeast Nigeria}, author = {Kamara, A. and Ekeleme, F. * and Kwari, J. * and Omoigui, L. * and Chikoye, D. }, journal = {Journal of Tropical Agriculture}, year = {2011}, volume = {49}, number = {1 and 2}, pages = {25--30}, issn = {0971-636X}, }