00599naa a2200169 a 450000100080000000500110000800800410001910000160006024502020007626000090027865000160028765300210030365300250032470000170034970000190036677300440038516049991995-06-27       1983    bl ---       0--  u    #d1 aHOPMANS, P.  aSymbiotic N2 fixation by legumes growing in pots. II. Uptake of 15N-labelled NO3, C2H2 reduction and H2 evolution by Trifolium subterraneum L., Medicago truncatula Gaertn. and Acacia dealbata Link.  c1983  aNitrogênio  aAVALIACAO DE FBN  aLEGUMINOSA TEMPERADA1 aCHALK, P. M.1 aDOUGLAS, L. A.  tPlant Soilgv.74, n.3, p.333-342, 1983.