00481naa a2200181 a 450000100080000000500110000800800410001910000150006024500560007526000090013165000150014065000090015565000130016465000140017765000090019165300130020077300860021318084502017-04-06       1992    bl ---       0--  u    #d1 aCOX, F. R.  aRange in soil phosphorus critical levels with time.  c1992  aphosphorus  asoil  aFósforo  aNutriente  aSolo  aNutrient  tSoil Science Society of America Journalgv.56, n.5, p.1504-1509, Sept./Oct. 1992.