@INPROCEEDINGS {ROÏNG:2002, title = {Gaseous N2O fluxes in tropical agriculture-effect of fertilizer and incorporated organic matter in soils of the derived savanna zone of Nigeria}, author = {Roing, K. and Goossens, A. and Diels, J. and Sanginga, P. and Andren, O. and Vanlauwe, B. }, booktitle = {Paper presented}, year = {2002}, location = {Accra, Ghana}, note = {Abstracts/proceedings of the 10th Congress of all African Biological Nitrogen Fixation, 28 OCtober-1 November}, }