00610naa a2200193 a 450000100080000000500110000800800410001910000180006024501890007826000090026765000260027665000120030265300080031465300120032265300080033465300120034270000170035477300450037116158791995-06-27       1992    bl uuuu     u00u1 u    #d1 aBODDEY, R. M.  aCalculations and assumptions involved in the use of the "A-value" and 15N isotope dilution techniques for the estimation of the contribution of plant-associated biological N2 fixation.  c1992  aDiluição Isotópica  aMétodo  a15N  aA VALUE  aFBN  aUAPNPBS1 aURQUIAGA, S.  tPlant Soilgv.145, n.1, p.151-155, 1992.