00702naa a2200205 a 450000100080000000500110000800800410001910000220006024501250008226000090020765300240021665300400024065300220028065300060030265300220030870000250033070000220035570000280037777300910040511241952015-08-04       2015    bl uuuu     u00u1 u    #d1 aMARTINS, J. C. R.  aNitrogen symbiotically fixed by cowpea and gliricidia in traditional and agroforestry systems under semiarid conditions.  c2015  aAbundância natural  aFixação biológica do nitrogênio  aGliricidia sepium  aN  aVigna unguiculata1 aFREITAS, A. D. S. de1 aMENEZES, R. S. C.1 aSAMPAIO, E. V. de S. B.  tPesquisa Agropecuária Brasileira, Brasília, DF.gv. 50, n. 2, p. 178-184, fev. 2015.