Influence of biochar amendment on the effectiveness of elite Kenyan rhizobia nodulating common bean (Phaseolus vulgaris L.)
Understanding variability in soybean yield and response to P-fertilizer and rhizobium inoculants on farmers' fields in northern Nigeria
Evaluation of yield potential and management practices affecting soybean production in western Kenya MSc thesis, University of Eldoret, Kenya, partly supported by N2Africa