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In Nigeria, West Africa, soil degradation has been one of the most critical environmental problems for along time. Hence, there has been and still is an urgent need to develop effective soil resource managementsystems that can reverse the trend. Sustaining soil productivity will enhance food secu...
Weeds are a major biological yield reducing factor in most cropping systems in Africa. The annual cost of weed control has been estimated to be $4.3 billion in Africa. This figure is expected to increase as a result of climate change effects on weed species and ecological conditions for a range o...
Speargrass is a serious weed in many farming systems of West Africa. Participatory research and extension approaches were used to promote farmer testing of alternative speargrass management options in yam, cassava and soybean in Nigeria. Treatments were paired plots with a farmers' control and at...
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