01311nam a2200397 a 450000100080000000500110000800800410001902000180006010000180007824500940009626000280019030000170021849000080023550001190024352002600036265000090062265000280063165000110065965000100067065000140068065000110069465000090070565300270071465300100074165300130075165300140076465300100077865300150078865300130080365300100081665300120082665300110083870000250084970000200087470000190089417859071995-08-28       1995    bl uuuu     u01u1 u    #d  a92-9053-294-71 aPOWELL, J. M.  aLivestock and sustainable nutrient cycling in mixed farming systems ofsub-saharan Africa.  aAddis Ababa: ILCAc1995  a560p.il. v.2  vv.2  aProceedings of an International Conference International Livestock Centre for Africa, 1993, Addis Ababa, Ethiopia.  aTechnical papers. Setting the scene. Interactions between animals and plants. Interactions between animals and soils. Interactions between plants and soils. Nutrient cycling in mixed farming systems. Modelling nutrient cycles in plant/animal/soil systems.  asoil  asustainable agriculture  aAnimal  aCampo  aNutriente  aPlanta  aSolo  aAgricultura sustentada  aCiclo  aCongress  aCongresso  aCycle  aInteiracao  aNutrient  aPlant  aSistema  aSystem1 aRIVERA-FERNANDEZ, S.1 aWILLIAMS, T. O.1 aRENARD, C. ed.