Carbon and nitrogen dynamics in ageing earthworm casts in grasslands of the eastern plains of Colombia
Biological nitrogen fixation by common beans (Phaseolus vulgaris L.) increases with bio-char additions
Arbuscular mycorrhizal fungi in the East African Highland banana cropping systems as related to edapho-climatic conditions and management practices : case study of Rwanda
Assessment of cowpea and groundnut contributions to soil fertility and succeeding sorghum yields in the Guinean savannah zone of Burkina Faso (West Africa)
