@INPROCEEDINGS {AJALA:2007, title = {Breeding strategies to improve maize for adaptation to low soil nitrogen in West and Central Africa}, author = {Ajala, S. and Menkir, A. and Kamara, A. and Alabi, S. * and Abdulai, M. S. *}, booktitle = {African Crop Science Conference Proceedings}, year = {2007}, volume = {8}, pages = {87--94}, publisher = {African Crop Science Society}, }