@ARTICLE {RONNER:2016, title = {Understanding variability in soybean yield and response to P-fertilizer and rhizobium inoculants on farmers' fields in northern Nigeria}, author = {Ronner, E. and Franke, A. C. * and Vanlauwe, B. and Dianda, M. and Edeh, E. and Ukem, B. and Bala, A. * and van Heerwaarden, J. and Giller, K. }, journal = {Field Crops Research}, year = {2016}, month = {February}, volume = {186}, pages = {133--145}, issn = {0378-4290}, note = {EAHub; WAHub; CRP Grain Legumes; Soybean; Available online 16 November 2015}, doi = {10.1016/j.fcr.2015.10.023}, }