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| Web URL(s): | https://scisoc.confex.com/scisoc/2018am/meetingapp.cgi/Paper/113516
Last checked: 11/12/2018 |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | O'Brien, Daniel P.;
Karcher, Douglas E.;
Richardson, Michael D. |
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| Author Affiliation: | O'Brien: Department of Horticulture, University of Arkansas, Fayetteville, AR; Karcher and Richardson: University of Arkansas, Fayetteville, AR |
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| Title: | Evaluating putting green firmness in terms of moisture, maintenance, and playability |
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| Section: | C05 turfgrass science
Other records with the "C05 turfgrass science" Section
Golf turf management I: Cultural practices, physiology, and water oral (includes student competition)
Other records with the "Golf turf management I: Cultural practices, physiology, and water oral (includes student competition)" Section
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| Meeting Info.: | Baltimore, Maryland: November 4-7, 2018 |
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| Source: | ASA, CSSA and SSSA International Annual Meetings. 2018, p. 113516. |
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| Publishing Information: | [Madison, Wisconsin]: [American Society of Agronomy, Crop Science Society of America, and Canadian Society of Agronomy] |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Cultural methods; Firmness; Golf green surface; Playability; Volumetric water content
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| Abstract/Contents: | "Surface firmness is an important component of putting green performance and overall quality. Properly interpreting firmness measurements is necessary for guiding maintenance practices. While firmness is generally desired, the underlying factors associated with it are managed in different ways. Firmness may be influenced by volumetric water content (VWC), organic matter (OM), and bulk density (BD), and consequently, managed through irrigation, aerification, topdressing, verticutting, and rolling. Understanding the extent to which firmness measurements reflect each of these underlying factors may allow superintendents to improve the efficiency and precision by which they manage firmness. The objectives of this research were to i) examine relationships between firmness measurements and ground-truth data for VWC, OM, and BD; and ii) compare variability among measurement devices. Firmness was measured using the Clegg Impact Soil Tester (Lafayette Instruments), and FieldScout TruFirm Turf Firmness Meter (Spectrum Technologies); the FieldScout TDR350 Moisture Meter (Spectrum Technologies) was used for estimating VWC. The experimental area was a creeping bentgrass (Agrostis stolonifera L cv. Penn A1) green, with USGA sand-based rootzone. A combination of irrigation, rolling, and cultural practices were used to create individual plots. For objective one, extracted samples at the site of each measurement were used to calculate ground-truth values for VWC, OM, and BD. For objective two, adjacent measurements with each device were collected on 0.3 by 0.3 m spacing, within established plots. Initial year results were that all devices had significant linear relationships (P ā¤ 0.05) with VWC, OM, and BD; Clegg and TDR350 exhibited strongest correlation with VWC (r2 = 0.78 and 0.95 respectively), while TruFirm was correlated closest with BD (r2 = 0.73). These results indicated that while firmness measurements were significantly influenced by VWC, devices for measuring firmness lacked the precision of moisture meters." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only!
"27-5" |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
O'Brien, D. P., D. E. Karcher, and M. D. Richardson. 2018. Evaluating putting green firmness in terms of moisture, maintenance, and playability. Agron. Abr. p. 113516. |
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Last checked: 11/12/2018 |
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