00747naa a2200241 a 450000100080000000500110000800800410001910000170006024501540007726000090023165300210024065300390026170000150030070000180031570000190033370000160035270000170036870000190038570000220040470000200042670000180044677300410046419081852015-01-27       2011    bl ---       0--  u    #d1 aURQUIAGA, S.  aEvidence from field nitrogen balance and 15 N natural abundance data for the contribution of biological N2 fixation to Brazilian sugarcane varieties.  c2011  aCana-de-açúcar  aFixaçao biológica de nitrogênio1 aXAVIER, R.1 aMORAIS, R. F.1 aBATISTA, R. B.1 aSCHULTZ, N.1 aLEITE, J. M.1 aBARBOSA, K. F.1 aRESENDE, A. S. de1 aALVES, B. J. R.1 aBODDEY, R. M.  tPlant and Soil Online, 22 oct. 2011.