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This article in SSSAJ

  1. Vol. 30 No. 1, p. 15-17
    Received: May 13, 1965
    Accepted: July 29, 1965

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Estimating Soil and Saturation Extract Composition by a Computer Method1

  1. J. L. Paul,
  2. K. K. Tanji and
  3. W. D. Anderson2



Five soil samples were salinized with NaCl and CaSO4.2H2O. They were extracted at 1:1 and saturation moisture content, and the chemical composition of the soils and extracts was determined. Exchange constants, for Na-Ca and Mg-Ca exchange, in combination with chemical data derived from samples at 1:1 moisture content were used in a computer program to predict soil and extract composition at saturation. The computer procedure, developed by Dutt, proved very satisfactory in estimating chemical makeup at saturation.

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