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understood. The application of PGRs has become a conventional golf course turf management practice for the regulation of turfgrass growth; suppression of certain weeds; reduction in mowing frequency and clipping yield; and enhancement of turfgrass color

, etc.) was dependent on sulfur, polymer content, or both in coated fertilizers. The thickness and nature of polymer-coatings affect N-release properties ( Carrow, 1997 ). Slow-release N sources may reduce clipping yields compared with quick

significant for plots fertilized at a rate of 48 kg N/ha/year. Over the course of the experiment, clipping yields from these plots did not differ significantly from the NF control ( Fig. 1 ). Fig. 1. Mean (n = 4) grass clipping production on four dates for

clipping yield and potential nitrate leaching. Low N availability can lead to N deficiency and limit plant growth ( Hull and Liu, 2005 ). Therefore, efficient use of N has been a major goal in turfgrass management and understanding the physiology of N

chamber for at least 3 weeks before initiation of treatments. Although no formal measurements were recorded, growth rate and clipping yield of grasses were similar when grown in the greenhouse and growth chamber. Grasses were not cut for 3 d before

indicated return of clippings could increase long-term C sequestration up to 25% ( Qian et al., 2003 ). Yet, similar clipping yields between CMB and fertilizer-grown sod, which equaled 25% of increases of SOC in the present study, indicated other C sources

WUE during drydown was associated with less leaf firing and wilting tendency in kentucky bluegrass ( Poa pratensis ), but the WUE measured as clipping yield-to-water loss ratio may not always be a reliable predictor of turf performance under drought

hybrid bermudagrass for PB only refers to the effects on clipping yield, root mass, root length, and shoot density of dwarf types ( McCullough, 2005a , 2005b ). Chlormequat chloride also belongs to the group of GA inhibitors but is currently labeled for

clipping yield, turfgrass quality, and color ( Burner and West, 2010 ; Cockerham et al., 2002 ; Feldhake et al., 1985 ; Lin et al., 1999 ; Watson et al., 1984 ; Wood, 1968 ). In cool-season grasses, clipping biomass production has been shown to

turfgrass wear tolerance Agron. J. 67 211 215 Trappe, J.M. Karcher, D.E. Richardson, M.D. Patton, A.J. 2011 Bermudagrass and zoysiagrass cultivar selection: Part 1, clipping yield, scalping tendency, and golf ball lie Appl. Turfgrass Sci. 8 1 12 Turgeon, A