Full TGIF Record # 290372
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Web URL(s):https://scisoc.confex.com/crops/2017am/webprogram/Paper108783.html
    Last checked: 10/13/2017
Publication Type:
i
Report
Content Type:Abstract or Summary only
Author(s):Unruh, J. Bryan; Shaddox, Traivs W.; Moon, Phillip H.
Author Affiliation:Unruh: Agronomy Department, West Florida Research and Education Center, University of Florida, Jay, FL; Shaddox: Fort Lauderdale Research and Education Center, University of Florida, Ft. Lauderdale, FL; Moon: West Florida Research and Education Center, University of Florida, Jay, FL
Title:Evaluation of methods for quantifying thatch accumulation in zoysiagrass
Section:C05 Turfgrass Science
Other records with the "C05 Turfgrass Science" Section

Turf management and ecology (includes student competition)
Other records with the "Turf management and ecology (includes student competition)" Section
Meeting Info.:Tampa, Florida: October 22-25, 2017
Source:ASA, CSSA and SSSA International Annual Meetings. 2017, p. 108783.
Publishing Information:[Milwaukee, Wisconsin]: [American Society of Agronomy and the Entomological Society of America]
# of Pages:1
Keywords:TIC Keywords: Analytical methods; Evaluations; Loss on ignition; Mass balance; Measurement; Thatch accumulation; Thatchmeter; Zoysia
Abstract/Contents:"In the absence of regular management, zoysiagrass (Zoysia spp.) thatch can be problematic and result in unacceptable turf quality. At least three methods of measuring thatch are used in turfgrass science including: percent organic matter (OM) by weight-loss-on-ignition (WLOI), depth by ruler, and mass by balance. The objective of this study was to determine if the faster Volk 'thatchmeter' instrument accurately measured thatch and correlated to the three aforementioned methods. The four methods were evaluated as part of a field study designed to determine the influence of fertility and cultural management practices on thatch development of five zoysiagrass cultivars. Treatments were verticutting, topdressing, and fertilization arranged in a split-split-plot design with four replications. Treatments and thatch measurements were conducted for three years in Jay, FL. The thatchmeter resulted in lower F-values on Z. japonica than on Z. matrella cultivars indicating the instrument had reduced sensitivity on the higher cut Z. japonica cultivars. Linear regression of the thatchmeter and the WLOI, ruler, and mass measurements resulted in 80% of the R2 values being less than 0.1. The increase in turf leaf blades likely contributed to the reduced sensitivity of the thatchmeter on Z. japonica cultivars. Although the thatchmeter sensitivity increased on the Z. matrella cultivars, the instrument still failed to accurately measure and correlate to WLOI, ruler, or mass measurements."
Language:English
References:0
Note:This item is an abstract only!
"105-7"
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Unruh, J. B., T. W. Shaddox, and P. H. Moon. 2017. Evaluation of methods for quantifying thatch accumulation in zoysiagrass. Agron. Abr. p. 108783.
Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=290372
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    Last checked: 10/13/2017
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