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From:International Journal of Agronomy (Vol. 2020) Peer-ReviewedAphids (Aphis craccivora Koch) are an important vegetative stage pest of cowpea in Africa. The use of resistant cultivars is among the best management option for this pest, but the success of this strategy is influenced...
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From:International Journal of Agronomy (Vol. 2020) Peer-ReviewedGroundnut yields obtained by farmers in northern Ghana are generally low due to low soil fertility resulting from continuous cropping coupled with low use of external inputs. There is therefore the need to use systems'...