00606naa a2200193 a 450000100080000000500110000800800410001910000170006024501060007726000090018365000080019265000190020065300260021965300180024565300080026365300120027170000170028377301120030016131391995-06-27       1990    bl ---       0--  u    #d1 aROGER, P. A.  aEstimation of biological N2 fixation and its contribution to nitrogen balance in wetland rice fields.  c1990  aAra  aArroz Inundado  aBALANCO DE NITROGENIO  aCIANOBACTERIA  aFBN  aREVISAO1 aLADHA, J. K.  tIn: Transactions 14th International Congress of Soil Science, Kyoto, Japan. Vol. III.gv., p.128-133, 1990.