@ARTICLE {ULZEN:2018a, title = {On-farm evaluation and determination of sources of variability of soybean response to Bradyrhizobium inoculation and phosphorus fertilizer in northern Ghana}, author = {Ulzen, J. * and Abaidoo, R. and Ewusi-Mensah, N. * and Masso, C. }, journal = {Agriculture, Ecosystems and Environment}, year = {2018}, month = {November}, volume = {267}, pages = {23--32}, issn = {0167-8809}, note = {WAHub; CAHub; Science Area; NRM; CRP Grain Legumes; Soybean; Available online 14 August 2018}, url = {https://doi.org/10.1016/j.agee.2018.08.007}, doi = {10.1016/j.agee.2018.08.007}, }