A computer land reclamation model was developed and applied to a field leaching study of moderately salt‐affected profiles. Leaching was accomplished by ponding 15 cm of water intermittently in 3 m by 3 m basins every 1 to 2 weeks. Computer predictions on the degree of reclamation were compared with measured changes in soluble salts, soluble boron, and SAR to soil depths of 274 cm. The differences between computed and measured field data were no more than the horizontal variations found in salt‐affected lands in this area and elsewhere. Also reported are predicted drainage water quality and a method for computing gypsum requirements of sodium‐affected profiles.

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