00468naa a2200157 a 450000100080000000500110000800800410001910000120006024501090007226000090018165000180019065000130020865000140022170000170023577300580025216039551995-06-27       1986    bl uuuu     u00u1 u    #d1 aALI, S.  aResponse of Azolla to P,K and Zn in different wetland rice soils in relation to chemistry of floodwater.  c1986  aCyanobacteria  aFósforo  aPotássio1 aWATANABE, I.  tSoil Sci. Plant Nutr.gv. 32, n. 2, p. 239-253, 1986.