@INPROCEEDINGS {ASADU:2007, title = {Soil nutrient and cassava yields variations under continuous cultivation of three-crop mixtures in eastern Nigeria}, author = {Asadu, C. * and Dixon, A. }, editor = {Kapinga, R. and Msabaha, M. and Ndunguru, J. * and Lemaga, B. and Tusiime, G. *}, booktitle = {Proceedings of the 13th ISTRC-Government symposium}, year = {2007}, pages = {240--247}, location = {Arusha, Tanzania}, note = {RTB; Root and Tuber; Cassava.; 10-14 November 2003}, }