@INBOOK {ROING:2001, title = {Effect of fallow legumes on mineral N soil dynamics in the derived savanna zone}, author = {Roing, K. and Diels, J. and Vanlauwe, B. and Sanginga, P. }, year = {2001}, type = {Books of Abstracts of the Fifth Biennal Conference of the African Crop Sceince Society, 21-26 Oct, Lagos, Nigeria}, pages = {118}, }