00551naa a2200205 a 450000100080000000500110000800800410001910000170006024500930007726000090017065000170017965000220019665000100021865300060022865300080023465300170024270000200025970000190027977300470029814582781999-01-15       1991    bl ---       0--  u    #d1 aTCHAN, Y. T.  aNitrogen fixation in para- nodules of wheat roots by introduced free-living diazotrophs.  c1991  aAzospirillum  anitrogen fixation  awheat  a2  a4-D  apara-nodules1 aZEMAN, A. M. M.1 aKENNEDY, I. R.  tPlant and Soilgv.137, n.1, p.43-47, 1991.