00827naa a2200289 a 450000100080000000500110000800800410001910000190006024500990007926000090017865300400018770000180022770000200024570000210026570000200028670000170030670000180032370000180034170000180035970000180037770000150039570000170041070000160042770000260044370000180046977300500048716306622015-03-16       2009    bl ---       0--  u    #d1 aPEOPLES, M. B.  aThe contributions of nitrogen-fixing crop legumes to the productivity of agricultural systems.  c2009  aFixação biológica de nitrogênio1 aBROCKWELL, J.1 aHERRIDGE, D. F.1 aROCHESTER, I. J.1 aALVES, B. J. R.1 aURQUIAGA, S.1 aBODDEY, R. M.1 aDAKORA, F. D.1 aBHATTARAI, S.1 aMASKEY, S. L.1 aSAMPET, C.1 aRERKASEM, B.1 aKHAN, D. F.1 aHAUGGAARD-NIELSEN, H.1 aJENSEN, E. S.  tSymbiosis, Philadelphiagv. 48, p. 1-17, 2009