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Travis C. Teuton, John C. Sorochan, Christopher L. Main, Thomas J. Samples, John M. Parham, and Thomas C. Mueller

establishment and use than traditional species. The objectives of this experiment were to determine if N levels affected turfgrass color, quality, clipping yield, and disease incidence of ‘Apollo’ Kentucky bluegrass, ‘Dura Blue’ and ‘Thermal Blue’ hybrid

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Xiaoya Cai, Laurie E. Trenholm, Jason Kruse, and Jerry B. Sartain

( Poa pratensis L.). Fitzpatrick and Guillard (2004) noted that kentucky bluegrass showed inconsistent response to K fertilization. Across varying N rates and clipping management, K application had no effect on clipping yields and turf quality

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Matthew J. Koch and Stacy A. Bonos

and the second in the fall of 2006. Plant measurements included visual percent green ratings taken weekly, clipping yields taken biweekly, and shoot and root weights, which were taken at the conclusion of the 10-week study. Visual percent green ratings

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Yu Huang, John E. Kaminski, and Peter J. Landschoot

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

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Antonio Pompeiano, Nicola Grossi, and Marco Volterrani

maintenance costs ( Fry et al., 2008 ). Differences in divot injury recovery were investigated among zoysiagrass cultivars ( Karcher et al., 2005 ; Trappe et al., 2011b ), shade and traffic tolerance ( Trappe et al., 2011a ), as well as clipping yield

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Richard O. Carey, George J. Hochmuth, Christopher J. Martinez, Treavor H. Boyer, Vimala D. Nair, Michael D. Dukes, Gurpal S. Toor, Amy L. Shober, John L. Cisar, Laurie E. Trenholm, and Jerry B. Sartain

, 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

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Chenping Xu, Zhongchun Jiang, and Bingru Huang

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

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Joseph C. Fetter, Rebecca N. Brown, and José A. Amador

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

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Mark J. Howieson and Nick Edward Christians

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

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Xiaoyan Dai, Donald M. Vietor, Frank M. Hons, Tony L. Provin, Richard H. White, Thomas W. Boutton, and Clyde L. Munster

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