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| Web URL(s): | https://scisoc.confex.com/scisoc/2018am/meetingapp.cgi/Paper/111644
Last checked: 11/14/2018
Requires: JavaScript |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Henry, Gerald M.;
Bowling, William;
Tucker, Kevin;
Shilling, Ross |
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| Author Affiliation: | Henry: University of Georgia-Athens, Athens, GA; Bowling and SChilling: Crop and Soil Sciences, University of Georgia, Athens, GA; Tucker: Crop and Soil Sciences, University of Georgia-Athens, Athens, GA |
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| Title: | Comparing conventional aerification practices to the core recycler |
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| Section: | C05 turfgrass science
Other records with the "C05 turfgrass science" Section
Turfgrass science - I poster
Other records with the "Turfgrass science - I poster" 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. 111644. |
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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: Aerification; Comparisons; Core collectors; Organic matter; Recycling; Topdressing
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| Abstract/Contents: | "Conventional aerification practices consist of removing soil cores through hollow tine aerification followed by sand topdressing. The removal of organic matter and replacement with sterile sand topdressing may decrease both microbial activity and fertilizer efficacy. Recycling cores back into the soil profile instead of removing them may reduce sand topdressing amounts, maintain organic matter content, increase fertilizer efficacy, and increase bermudagrass recovery. Research was conducted on a 'MiniVerde' ultradwarf bermudagrass putting green established on a USGA spec soil profile at the University of Georgia Golf Course during the summer of 2017. Treatments were initiated on June 9, 2017 and consisted of a 2 x 3 factorial design with 4 replications. The main factor was aerification method (conventional aerification or core recycler) and the sub-factor was fertility treatment (0.5x, 0.75x, or 1x rate). The putting green was split in half (split block). One side was aerified to a depth of 7.6 cm with a hollow tine aerifier using 1.3 cm tines on a 2.5 x 2.5 cm spacing. Topdressing sand (USGA spec) was applied at a rate of 237 m3 ha-1. The second half of the putting green was also aerified (cores not removed) and topdressed at 118 m3 ha-1 (50% of conventional topdressing rate). The core recycler was operated over the surface. Aerification practices were conducted on June 9, 2017 and August 2, 2017. Fertility plots (1.5 x 3 m) were arranged in a randomized complete block within each side of the green and consisted of 7.3 kg N ha-1 wk-1 (0.5x rate), 11 kg N ha-1 wk-1 (0.75x rate), or 14.7 kg N ha-1 wk-1 (1x rate). Fertility treatments were initiated on June 9, 2017 after aerification practices were conducted. At trial initiation, four 2.5-cm diameter cores were removed to determine organic matter (OM) content and root biomass (g). Cores were removed one day after aerification events to detect changes in OM content. Cores were removed the day before aerification event B and at trial termination to detect root response over time. Turfgrass quality, turfgrass color, and NDVI ratings were recorded at trial initiation and weekly throughout the duration of the trial. Carbon efflux (mol m-2 s-1) measurements were recorded with a LiCor device 2 to 4 d after aerification treatments to determine microbial activity within the soil. Organic matter content (June 10, 2017) was generally greater following the use of the core recycler (1.3 to 1.425%) compared to conventional aerification (1.025 to 1.35%). However, the organic matter content in the conventionally aerified treatment at the 1x fertility rate was higher than the core recycler (1x fertility), but this was not a result of the fertility treatment. On June 13, 2017, carbon efflux measurements were similar between aerification treatments, but dissimilar with respect to fertilizer treatment. As fertilizer treatment went up, carbon efflux measurements went up. Aerification treatment affected turfgrass color. Core recycler practices resulted in greater turf color at all fertility rates when compared to the conventional aerification practices. This trend lasted for approximately two weeks after aerification event A and B. Root biomass was also affected by aerification treatment. Root biomass was greater for core recycler treatments (approx. 7 weeks after aerification event A and 6 weeks after aerification event B) compared to conventional aerification, regardless of fertility rate." |
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| Language: | English |
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| References: | 0 |
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| See Also: | Updated version appears in International Turfgrass Society Research Journal, 14(1) June 2022, p. 548-554, R=321297. R=321297 |
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| Note: | This item is an abstract only!
"232"
"Poster Number: 1281" |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Henry, G. M., W. Bowling, K. Tucker, and R. Shilling. 2018. Comparing conventional aerification practices to the core recycler. Agron. Abr. p. 111644. |
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Last checked: 11/14/2018
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