INTRODUCTION
Market linkages have been identified as key to the successful integration of grain legumes into the smallholder farming systems of southern Africa (Chianu et al., 2009). Soybean (Glycine max) is a commodity with relatively higher prices and that has shown great potential to sustain production in smallholder farming systems due to its multiplicity of use. Soybean can be used as cash crop, as food and also as means of improving soil fertility through Biological Nitrogen Fixation (BNF). The net income benefits derived from soybean production depend on the extent to which farmers participate in output markets. According to IFAD (2003), market participation can be an effective route for rural smallholder farmers to move out of abject poverty and increase income.
