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| Web URL(s): | https://scisoc.confex.com/crops/2015am/webprogram/Paper94180.html
Last checked: 11/17/2015 |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Schmid, Charles J.;
Murphy, James A.;
Clarke, Bruce B. |
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| Author Affiliation: | Rutgers University, New Brunswick, NJ |
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| Title: | Effect of soil pH on annual bluegrass quality and color |
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| Section: | C05 turfgrass science
Other records with the "C05 turfgrass science" Section
Golf course management and cultural practices
Other records with the "Golf course management and cultural practices" Section
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| Meeting Info.: | Minneapolis, Minnesota: November 15-18, 2015 |
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| Source: | ASA, CSSA and SSSA International Annual Meetings. 2015, p. 94180. |
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| Publishing Information: | [Milwaukee, Wisconsin]: [American Society of Agronomy and the Entomological Society of America] |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Color; Growth analysis; Growth rate; Poa annua; Soil pH; Turfgrass quality
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| Abstract/Contents: | "The effect of soil pH on turfgrass growth varies depending species; however, most turfgrasses are adapted to slightly acid soil conditions (pH 6 - 7). In general, annual bluegrass [Poa annua L. f. reptans (Hausskn) T. Koyama; ABG] is considered intolerant of low or high soil pH; however, it is unclear what the optimum soil pH is for ABG growth and quality under field conditions. The objectives of this field study were to quantify the responses of annual bluegrass over a range of soil pH and determine a critical level for ABG growth and quality. The trial was initiated in 2011 on ABG turf that had an initial pH value of 5.3 in the 0- to 60-mm mat layer. Five limestone (CaCO3) rates were applied on 12 Dec. 2011 and 1 Apr. 2014 based on target pH levels of 5.8, 6.3, 6.8, 7.3, and 7.8 in the mat-thatch layer. Elemental sulfur was applied at a rate of 24 and 49 kg S ha-1 on 12 Dec. 2011 and at a rate of 12 and 24 kg S ha-1 on 3 Apr. 2014 to decrease pH. Linear plateau regression analysis was used to determine a critical soil pH level with respect to turfgrass quality, color, NDVI, and chlorophyll index. Turfgrass quality and color data from 2013 and 2014 suggest a critical value for soil pH of 5.8 (R2 = 0.70 and 0.71, respectively). Additionally, few differences in quality and color were seen between different soil pH levels during the spring of each year; however, low soil pH (< 5.8) caused a significant decrease in turfgrass quality and color during the summer. It is likely that environmental stresses such as heat and drought are required for ABG to exhibit a negative response to low soil pH." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only!
"239-6" |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Schmid, C. J., J. A. Murphy, and B. B. Clarke. 2015. Effect of soil pH on annual bluegrass quality and color. Agron. Abr. p. 94180. |
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Last checked: 11/17/2015 |
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