00655naa a2200241 a 450000100080000000500110000800800410001910000180006024501260007826000090020465000120021365000260022565000170025165000120026865000160028065000090029665000090030565300080031465300150032265300080033770000170034577300510036216160531995-06-27       1992    bl uuuu     u00u1 u    #d1 aRARIVOSON, G.  aIsotope 15N enrichment of soil-ammonium N as a reference to estimate N2 fixation by stem and root-inoculated S. rostrata.  c1992  aAmônia  aDiluição Isotópica  aInoculação  aMétodo  aNitrogênio  aRaiz  aSolo  a15N  aEFICIENCIA  aFBN1 aLADHA, J. K.  tBiol. Fertil. Soilsgv.13, n.2, p.74-78, 1992.