01427naa a2200241 a 450000100080000000500110000800800410001910000210006024501580008126000090023950001560024852005330040465300310093765300120096865300330098070000250101370000220103870000200106070000200108070000170110070000180111777300500113521172112019-12-18       2019    bl uuuu     u00u1 u    #d1 aARAUJO, K. E. C.  aNatural abundance of 15N of N derived from the atmosphere by different strains of Bradyrhizobium in symbiosis with soybean plants.h[electronic resource]  c2019  aTítulo em Português: Abundância natural de 15N do N derivado da atmosfera por diferentes estirpes de Bradyrhizobium em simbiose com plantas de soja.  aTo quantify the BNF contribution to legumes using the 15N natural abundance technique, it is important to know the abundance of 15N of the plants grown entirely dependent on BNF (value ?B?). The aim of the study was to determine the 15N natural abundance of N2 fixed by different Bradyrhizobium strains in symbiosis with one soybean cultivar. Treatments consisted of soybean plants cultivated with and without inoculation with ten Bradyrhizobium strains, in five replicates planted in Leonard jars in a sand/vermiculite mixture.  a15N Isotopic fractionation  aB Value  aBiological nitrogen fixation1 aTORRES JUNIOR, C. V.1 aGUIMARÃES, A. P.1 aSILVA, M. A. da1 aALVES, B. J. R.1 aURQUIAGA, S.1 aBODDEY, R. M.  tCiência Ruralgv. 49, n.12, e20180265, 2019.