00668naa a2200229 a 450000100080000000500110000800800410001910000190006024501830007926000090026265000080027165000140027965000120029365000100030565000120031565000160032765000090034365000090035265300110036170000150037277300510038716091261995-06-27       1983    bl uuuu     u00u1 u    #d1 aVAN BERKUM, P.  aInteraction of combined nitrogen with the expression of root-associated nitrogenase activity in grasses and with the development of N2 fixation in soybean (Glycine max Merr. L.).  c1983  aAra  aGramínea  aMétodo  aMilho  aNitrato  aNitrogênio  aRaiz  aSoja  aAarroz1 aSLOGER, C.  tPlant Physiol.gv. 72, n. 3, p. 741-745, 1983.