relate to groundnut yields. We distinguish agroforestry systems by (a) tree quantity per hectare, (b) tree species diversity … of increasing tree cover or tree species diversity and introducing or expanding certain tree species in established …

relate to groundnut yields. We distinguish agroforestry systems by (a) tree quantity per hectare, (b) tree species diversity … of increasing tree cover or tree species diversity and introducing or expanding certain tree species in established …