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This article in SSSAJ

  1. Vol. 27 No. 6, p. 627-630
    Received: Dec 6, 1962
    Accepted: Jan 8, 1963

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Predicting the Solute Composition of the Saturation Extract from Soil Undergoing Salinization1

  1. Gordon R. Dutt and
  2. Lloyd D. Doneen2



A procedure utilizing a 1620 IBM computer was developed to predict the concentrations of Ca2+, Mg2+, and Na+ in saturated extracts from soils undergoing salinization with waters containing Cl- and SO42- salts of one or more of the above cations. This procedure was used to predict the concentration in saturated extracts for soils to be salinized with various mixtures of salts. These predicted values were in agreement with experimentally determined values both in systems where the salts remained in solution and where gypsum was precipitated. This procedure lends itself to routine analysis, and it should be possible to extend it to include other ions and slightly soluble salts that frequently are found in nature.

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