00572naa a2200217 a 450000100080000000500110000800800410001910000180006024500930007826000090017165000260018065000120020665000160021865300080023465300100024265300080025270000170026070000160027770000170029377300440031016083401995-06-27       1982    bl uuuu     u00u1 u    #d1 aMILLER, J. C.  aThe influence of available nitrate levels on nitrogen fixation in 3 cultivars of cowpea.  c1982  aDiluição Isotópica  aNitrato  aNitrogênio  a15N  aCaupi  aFBN1 aSCOTT, J. S.1 aZARY, K. W.1 aOHAIR, S. K.  tAgron. J.gv. 74, n. 1, p. 14-18, 1982.