Effects of Nitrogen, Growth Regulators, andMowing Height on Ball Lie in TifSportBermudagrass

摘要

Two separate field studies were conducted to determine the effects of mowingheight, nitrogen rates, and plant growth regulator use on golf ball lie in ‘TifSport’hybrid bermudagrass (Cynodon dactylon × C. transvalensis). The first experimentwas conducted at the University of Georgia, Coastal Plain Experiment Stations,Tifton, GA. Factors at the Tifton location were nitrogen application rate (0.5, 1.0,and 1.5 lbs per 1,000 ft~2 per month) applied with and without trinexapac-ethyl(TE) or TE plus flurprimidol, and mowing height (0.5, 1.0, and 1.5 inches). Thesecond project was conducted at the University of Arkansas Agricultural Researchand Extension Center, Fayetteville, AR. Factors at the Fayetteville locationincluded nitrogen application rate and mowing height (utilizing the rates andheights described above), as well as TE application frequency (monthly, everyother week, and a control). Results from these two studies suggest that a 0.5-inchmowing height will improve ball lie in TifSport bermudagrass. The Georgiaresearch determined that 1.0 lb of N per 1,000 ft~2 per month in combination withTE will improve ball lie, while maintaining acceptable TifSport quality. On one datacollection date, the Arkansas research observed improved ball lie values when TEwas applied every other week or monthly to TifSport bermudagrass maintained ata 1.5-inch mowing height.