Atta - Krah , A.N. , y Sumberg , J.E. ( 1988 ) Studies with Gliricidia sepium for crop / livestock production systems in West Africa . Agroforestry Systems 6 : 97-118 . Baggio , A.J. , y Heuveldop , J. ( 1982 ) Implantacão , ma- nejo e ...

In many parts of Africa , cropping and livestock husbandry and ethnically and operationally separate enterprises ( Powell and Mohammed - Saleem , 1987 ) . Where efforts have been made to incorporate grazed fallows into the production ...

Presented at the Inter - regional Meeting on Agroforestry Research , Education and Development for Africa , Asia and Latin America , 3-7 May 1994 , ICRAF , Nairobi , Kenya . Landeck , J. , 1991. New age extension in farming systems re- ...