Effects of Exchangeable Soil Sodium on Implement Draft
ABSTRACT Relationships were developed between a sodic soil's physical and chemical parameters to examine the feasibility of reclamation. Data were collected during July 1986 and 1987 on a sodium-affected silt loam that had been amended with gypsum, fly ash and sulfur. Several significant relationships were determined. The analysis indicated that draft (D) decreased as exchangeable sodium percentage (ESP) decreased. Applying the gypsum amendment resulted in a 40% (1986), 20% (1987) and 30% (1986 and 1987 combined) decrease in the draft requirement for the tillage operation of this experiment.