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| Web URL(s): | https://listings.lib.msu.edu/iowat/1988.pdf#page=74
Last checked: 01/12/2017
Requires: PDF Reader |
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| Publication Type:
| Report |
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| Author(s): | Agnew, M. L.;
Christians, N. E.;
Moore, R. W. |
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| Author Affiliation: | Agnew: Assistant Professor; Christians: Professor; and Moore: Turfgrass Graduate Student and Research Associate, Iowa State University |
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| Title: | Cultivation intensity study |
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| Source: | 1988 Iowa Turfgrass Research Report. 1988, p. 69-71. |
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| Publishing Information: | Ames, Iowa: Iowa State University Extension |
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| # of Pages: | 3 |
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| Series: | FG-454 |
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| Keywords: | TIC Keywords: Coring; grooving; Poa pratensis
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| Abstract/Contents: | "In the spring of 1986, a cultivation study was initiated on two areas, a one-year-old stand of Midnight Kentucky bluegrass and a four-year-old stand of Premium Sod Blend. The purpose of this study is to investigate the effects of core cultivation and grooving on thatch preventive and thatch removal. The turfgrass is maintained at a 2-inch mowing height with clippings returned to the soil. The area is fertilized with 4 lb N/1000 ft2/growing season using sulfur coated urea. Thatch depth was measured on May 23, 1987. Measurements were taken by pulling a 6-inch diameter core from each plot. The thatch was compressed using a 1 kg weight and the depth was measured in mm. Two 7.5 cm diameter samples of the thatch layer were collected, and dry and ash weights were determined. The organic component was calculated as the percentage of the thatch layer that is organic matter [dry wt - ash wt/ash wt) x 100]. Visual quality and weed counts were made on September 17, 1987. Quality is based on a scale of 1 to 9, with 9 = best quality, 6 = acceptable quality, and 1 = dead turf. After one full year of treatments, compressed thatch depth was measured on May 23, 1987. For Midnight Kentucky bluegrass, only grooving on May, September, and on May, July, September reduced or prevented an accumulation of thatch while there was no difference in thatch accumulation in Premium Sod Blend. Quality ratings were affected by treatments for both turfgrass areas. It should be noted that the grooving treatment was more severe than what normally would have been used. The intent was to remove thatch, unfortunately, the turfgrass was severely thinned. By the spring of 1988, the turfgrass in the grooved areas had not filled back in completely. Thatch determination will be done in May 1988. Grooving decreased the quality of Midnight Kentucky bluegrass by as much as 50 percent and Premium Sod Blend by as much as 30 percent. Multiple grooving decreased quality the most. In addition, grooving caused an increase in weed invasion." |
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| Language: | English |
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| References: | 0 |
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| Note: | "July, 1988"
Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Agnew, M. L., N. E. Christians, and R. W. Moore. 1988. Cultivation intensity study. Iowa Turfgrass Res. Rep. p. 69-71. |
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| Web URL(s):
https://listings.lib.msu.edu/iowat/1988.pdf#page=74
Last checked: 01/12/2017
Requires: PDF Reader |
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MSU catalog number: SB 433 .A1 I55 |
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