01470nam a2200397 a 450000100080000000500110000800800410001902000180006010000180007824500940009626000280019030000160021849000080023450001180024252004210036065000090078165000280079065000110081865000100082965000140083965000110085365000090086465300270087365300100090065300130091065300140092365300100093765300150094765300130096265300100097565300120098565300110099770000250100870000200103370000190105317859062008-08-14       1995    bl uuuu     u01u1 u    #d  a92-9053-291-21 aPOWELL, J. M.  aLivestock and sustainable nutrient cycling in mixed farming systems ofsub-saharan Africa.  aAddis Ababa: ILCAc1995  a55p.il. v.1  vv.1  aProceedings of an Internatinal Conference International Livestock Centre for Africa, 1993, Addis Ababa, Ethiopia.  aConference summary; Summary of plenary sessins; Opening session; Interactions between animals and plants; Interactions between animals and soils; Interactions between plant and soils; Nutrient cycling in mixed farming systems; Modelling nutrient cycles; Closing session; Summary of focus group sessions; Introduction; Animal-plant interactions; Animal-soil interacions; Socio-economic dimensions in nutrient cycling.  asoil  asustainable agriculture  aAnimal  aCampo  aNutriente  aPlanta  aSolo  aAgricultura sustentada  aCiclo  aCongress  aCongresso  aCycle  aInteiracao  aNutrient  aPlant  aSistema  aSystem1 aFERNANDEZ-RIVERA, S.1 aWILLIAMS, T. O.1 aRENARD, C. ed.