00665naa a2200229 a 450000100080000000500110000800800410001910000200006024501120008026000090019265000220020165000090022365000140023265000160024665000090026265300140027165300140028565300230029970000170032270000170033977300790035618015632017-04-20       1986    bl ---       0--  u    #d1 aDAVIDSON, E. A.  aDistinguishing between nitrification and denitrification as sources of gaseous nitrogen production in soil.  c1986  anitrogen fixation  asoil  aAcetileno  aEcossistema  aSolo  aAcetilene  aEcosystem  aNitrogenio fixacao1 aSWANK, W. T.1 aPERRY, T. O.  tApplied and Environmental Microbiologygv.52, n.6, p.1280-1286, Dec. 1986.