Effect of mycorrhizal inoculation and two pruning regimes in experimental alley cropping treatments on the leaf biomass and nutrient yield of sole and mixed Gliricidica septum (a modulating plant) ami Senna siamea (a non-nodulating plant) were investigated both in the greenhouse and in the field. The impact of the mixtures of these legumes as hedgerows on maize and one cultivar of cassava was also studied on the Held.