PACE Turf - Turfgrass Information Center

Water

Turfgrass Research at Fairbanks Ranch Country Club

Fairbanks Ranch Country Club was the site of a multi-year study evaluating the impact of poor quality irrigaiton water and various overseeding management practices on Tifway II bermuda and SeaIsle I paspalum performance.  The publications below were prepared from this research.  The trial utilized native soils at Fairbanks Ranch and installation of a salinity gradient irrigation system that utilized the poor quality well water, good quality domestic water and a combiantion of these two water sources. 

Turfgrass varieties evaluated include:  Tifway II bermudagrass, SeaIsle I paspalum, Brightstar II ryegrass, Charger II ryegrass, 2 SLX ryegrass, Bonsai tall fescue, Tomahawk E tall fescue.

October 9, 2000 Status Report

January 30, 2001 Status Report

May 30, 2001 Update

Progress in warm season turf management

Plot Plan

Principal investigators:  Wendy Gelernter, Ph.D. and Larry Stowell, Ph.D., CPAg

Cooperators:  Brian Darrock, Mike Ashworth, Jose Guzman, Brian Sandland, Fairbanks Ranch Country Club

Sponsors:  Fairbanks Ranch Country Club, Southern California GCSA, San Diego GCSA, Hi-Lo GCSA, California State GCSA

Spring, seed or sod from: Ronnie Duncan, Ph.D. University of Georgia, West Coast Turf, Palm Desert, CA, John Rector, Turf-Seed Inc.

Runoff water monitoring at Dove Canyon Country Club

Summary: Irrigation water and runoff water was monitored for three years at Dove Canyon Country Club to evaluate the impact of the golf course on down-stream water quality. When compared to the reclaimed irrigation water used throughout the development and the golf course, the runoff water was significantly lower in nitrates, total phosphorus, and total organic halogens. Oil and grease, total organic carbon, pH, and electrical conductivity of the runoff water were significantly higher than the irrigation water. There was no significant difference in the concentration of ammonia, nitrites, total Kjeldahl nitrogen in the irrigation and runoff waters. These results support the value of turfgrasses in capturing nitrogen and phosphorus, two key nutrients that can lead to eutrophication of waterways. The origin of the oil and grease, organic carbon, elevated pH and inceased salinity may be the golf course or the surrounding community that also drains into the same streams.

Printable version of full report

Principal Investigator: Larry Stowell, Ph.D.

Cooperator: Eric Lover, Dove Canyon Country Club

Sponsor: Dove Canyon Country Club

Effect of Primer Applications on Nutrient Leaching in Turfgrass Greens

Summary: A replicated experiment was designed to evaluate the effect of Primer on the leaching of nutrients on a Poa annua golf course green. Following six monthly applications of Primer at 6 oz/1000 square feet, analyses conducted on soil samples from 1, 2 and 4 inches depths revealed no significant differences between treated and untreated plots in levels of over 20 nutrients including, sodium, magnesium, calcium, total salts, and even the highly leachable potassium. In addition, no phytotoxicity and no effects on turf quality were observed in areas treated with Primer. On the basis of these results, multiple applications of Primer to turfgrass do not increase leaching of nutrients in the soil.

Full print version of report (123 KB)

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

Cooperator: Mark Schaer, San Luis Rey Downs

Sponsor: Stan Kostka, Aquatrols

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