00638naa a2200217 a 450000100080000000500110000800800410001910000150006024501370007526000090021265000120022165000230023365000090025670000170026570000150028270000150029770000180031270000230033070000130035377300540036615593872008-02-05       2007    bl uuuu     u00u1 u    #d1 aMALTAS, A.  aLong-term effects of continuous direct seeding mulch-based cropping systems on soil nitrogen supply in the Cerrado region on Brazil.  c2007  aCerrado  aMatéria Orgânica  aSolo1 aCORBEELS, M.1 aSCOPEL, E.1 aOLIVER, R.1 aDOUZET, J.-M.1 aSILVA, F. A. M. da1 aWERY, J.  tPlant and Soilgv. 298, n. 1/2, p. 161-173, 2007.