00653naa a2200253 a 450000100080000000500110000800800410001910000190006024500640007926000090014365000110015265000120016365000150017565000120019065000120020265000250021465000140023965300110025365300210026465300220028570000170030770000170032477300580034115509411996-02-27       1982    bl ---       0--  u    #d1 aRITCHEY, K. D.  aCalcium deficiency in clayey B Horizons of savanna oxisols.  c1982  aBrazil  acalcium  aFerralsols  aCálcio  aCerrado  aDeficiência do Solo  aLatossolo  aBrasil  aDistrito Federal  aSoil deficiencies1 aSILVA, J. E.1 aCOSTA, U. F.  tSoil Science, Baltimoregv.133, n.6, p.378-382, 1982.