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Soil Science Society of America Journal Abstract -

Effect of Phosphate Adsorption on the Cation-Exchange Capacity of Volcanic Ash Soils1


This article in SSSAJ

  1. Vol. 38 No. 3, p. 539-540
    Received: Dec 21, 1973
    Accepted: Feb 18, 1974

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  1. E. B. Schalscha,
  2. P. F. Pratt and
  3. D. Soto2



The CEC of five subsoils derived from volcanic ash (Trumao soils) in southern Chile was measured following treatment with phosphate solutions with concentrations ranging from 0.0042 to 0.416 moles KH2PO4/liter. The average ratio of increase in CEC to P reacted was 0.6 with only small variations among soils.

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