00463naa a2200157 a 450000100080000000500110000800800410001910000190006024500980007926000090017765000240018665000140021065000210022470000160024577300440026116059151995-06-27       1985    bl ---       0--  u    #d1 aVAN LIEROP, W.  aComparative potassium levels removed from soils by electro-ultrafiltration and some chemical.  c1985  aFertilidade do Solo  aPotássio  aQuímica do Solo1 aTRAN, T. S.  tCan. J. Soil Sci.gv.65, p.25-34, 1985.