00635naa a2200217 a 450000100080000000500110000800800410001910000160006024500650007626000090014165300250015065300220017565300190019765300230021665300230023970000140026270000210027670000190029770000250031677300760034110260152003-07-29       2002    bl uuuu     u00u1 u    #d1 aBETTIOL, W.  aSoil organisms in organic and conventional cropping systems.  c2002  aAgricultura organica  aImpacto ambiental  aMicroartropodo  aMicrobiota do solo  aSistema de cultivo1 aGHINI, R.1 aGALVAO, J. A. H.1 aLIGO, M. A. V.1 aMINEIRO, J. L. de C.  tScientia Agricola, Piracicabagv. 59, n. 3, p. 565-572, jul;/set. 2002.