@ARTICLE {OKOGUN:2003, title = {Can introduced and indigenous rhizobial strains compete for nodule formation by promiscuous soybean in the moist savanna agroecological zone of Nigeria?}, author = {Okogun, J. and Sanginga, N. }, journal = {Biology and Fertility of Soils}, year = {2003}, volume = {38}, pages = {26--31}, issn = {0178-2762}, note = {Published 14 May 2003}, url = {https://doi.org/10.1007/s00374-003-0611-8}, doi = {10.1007/s00374-003-0611-8}, }