Evaluation of Captor for Management of Sodic Soils

February 2, 2006

Summary: In a replicated field trial conducted on a Bermudagrass fairway with a history of high sodium levels, the product Captor was evaluated for its ability to improve turf quality by reducing sodium levels in the soil. Key results include:

• Following three applications of Captor, no significant differences in turf quality were observed when data was analyzed at the P<0.05 level. However, using a less stringent P of <0.10, a significant improvement in turf quality was observed on the last sampling date only, for a treatment of Captor at 88 oz/1000 square feet (30 gallons per acre).
• Reduced rates of Captor (88 oz/1000 square feet for the initial application, followed by 30 oz/1000 square feet for subsequent applications) had no significant effect on turf quality when compared to the non-treated check.
• No phytotoxicity was observed, even when the rate of Captor was doubled to simulate spray overlap.

Full print version of report (77 KB)

Investigators: Wendy Gelernter, Ph.D. and Larry J. Stowell, Ph.D., CPPP, CPAg

Cooperator: Ron Nolf, Vista Valley Country Club

Sponsor: Roy Hardison, Best Sulfur Products