@ARTICLE {SANGINGA:1989a, title = {Effectivity of indigenous rhizobia for nodulation and early nitrogen fixation with Leucaena leucocephala grown in Nigeria soils}, author = {Sanginga, N. and Mulongoy, K. and Ayanaba, A. }, journal = {Soil Biology and Biochemistry}, year = {1989}, volume = {21}, number = {2}, pages = {231--235}, }