00447naa a2200169 a 450000100080000000500110000800800410001910000140006024500570007426000090013165000180014065000140015865000100017265000230018270000170020577300550022216005801995-06-27       1978    bl ---       0--  u    #d1 aSAITO, M.  aOrganic matter production in rice field flood water.  c1978  aCyanobacteria  aAgronomia  aArroz  aMatéria Orgânica1 aWATANABE, I.  tSoil Sci. Plant Nutr.gv.24, n.3, p.427-440, 1978.