00496naa a2200157 a 450000100080000000500110000800800410001910000200006024501340008026000090021465000260022365000120024965300080026165300130026977300560028216067311995-06-27       1986    bl uuuu     u00u1 u    #d1 aDANSO, S. K. A.  aReview. Estimation of N2-fixation by isotope dilutionban appraisal of techniques involving 15N enrichment and their application.  c1986  aDiluição Isotópica  aMétodo  a15N  aRevisão  tSoil Biol. Biochem.gv. 18, n. 3, p. 243-244, 1986.