00618naa a2200217 a 450000100080000000500110000800800410001910000150006024501070007526000090018265000120019165000160020365000190021965000090023865300200024770000170026770000150028470000130029970000230031277300650033515722632010-02-24       2009    bl uuuu     u00u1 u    #d1 aMALTAS, A.  aCover crop and nitrogen effects on maize productivity in no-tillage systems of the Brazilian Cerrados.  c2009  aCerrado  aNitrogênio  aPlantio Direto  aSolo  aPreparo do solo1 aCORBEELS, M.1 aSCOPEL, E.1 aWERY, J.1 aSILVA, F. A. M. da  tAgronomy Journal, Madisongv. 101, n. 5, p. 1036-1046, 2009.