00952nam a2200361 a 450000100080000000500110000800800410001910000280006024500940008826000370018230000100021965000160022965000220024565000110026765000210027865000200029965000130031965000160033265000130034865000230036165000220038465000230040665300110042965300090044065300160044965300120046565300220047765300150049965300120051465300350052665300110056165300180057210905782014-02-27       1979    bl uuuu     u0uu1 u    #d1 aPALMA VALDERRAMA, V. F.  aFarming systems research at the brazilian national corporation for agricultural research.  aBrasília, DF: EMBRAPA-DDMc1979  a41 p.  aagriculture  aanimal production  aBrazil  acropping systems  afarming systems  aresearch  aAgricultura  aPesquisa  aPesquisa Agrícola  aProdução Animal  aSistema de Cultivo  aBrasil  aCrop  aCultivation  aCultivo  aRegiao de cerrado  aSemi-arido  aSistema  aSistema de exploracao agricola  aSystem  aTropico Umido