Original Research Published on 29 Nov 2016 Bradyrhizobium Inoculants Enhance Grain Yields of Soybean and Cowpea in Northern Ghana in Agroecology Jacob UlzenRobert C. AbaidooNana E. MensahCargele MassoAbdelAziz H. AbdelGadir Frontiers in Plant Science doi 10.3389/fpls.2016.01770 13,989 views 112 citations