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Web URL(s): | https://archive.lib.msu.edu/tic/its/articles/2013jou649.pdf Last checked: 07/06/2015 Requires: PDF Reader |
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Publication Type:
| Refereed |
Author(s): | Raley, R. B.;
Landschoot, P. J.;
Brosnan, J. T. |
Author Affiliation: | Raley: Agrium Advanced Technologies, Grantsville, MD; Landschoot: Dept. of Plant Science, Pennsylvania State University, University Park, PA; Brosnan: Dept. of Plant Sciences, University of Tennessee, Knoxville, TN |
Title: | Influence of phosphorus and nitrogen on annual bluegrass encroachment in a creeping bentgrass putting green |
Section: | Weed science Other records with the "Weed science" Section
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Meeting Info.: | Beijing, China: July 14-19, 2013 |
Source: | International Turfgrass Society Research Journal. Vol. 12, 2013, p. 649-655. |
Publishing Information: | Madison, Wisconsin: International Turfgrass Society |
# of Pages: | 7 |
Keywords: | TIC Keywords: Agrostis stolonifera; Mehlich-3 test; Phosphorus; Poa annua control; Weed control
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Cultivar Names: | Penn A-4 |
Abstract/Contents: | "Annual bluegrass (Poa annua L.) encroachment into newly established creeping bentgrass (Agrostis stolonifera L.) putting greens is a concern for golf course turfgrass managers attempting to maintain uniform and consistent putting surfaces. A 2-yr field study was conducted at the Joseph Valentine Turfgrass Research Center (University Park, PA USA) on a 2-yr-old sand-based 'Penn A-4' creeping bentgrass putting green to determine the influence of phosphorus (P) on changes in annual bluegrass cover and to identify soil and tissue P concentrations associated with limited annual bluegrass encroachment. Treatments were the factorial combination of four nitrogen (N) rates (195, 293, 391, and 488 kg N ha-1) and four P rates (0, 43, 86, and 129 kg P ha-1 yr-1). Treatments >= 43 kg P ha-1 yr-1 resulted in an increase in annual bluegrass cover compared to treatments with no P applied, but annual bluegrass cover was not affected as rates of P increased above 43 kg P ha-1 yr-1. Annual bluegrass cover in 0 kg P ha-1 yr-1 plots decreased by 2% over the 2-yr experiment; whereas, cover increased from ~3 to 7 % in plots receiving 43 to 129 kg P ha-1 yr-1. After 2-yr of treatments, soil Mehlich 3-P concentrations were positively correlated with changes in annual bluegrass cover; treatments producing concentrations >=13 mg kg-1 had greater annual bluegrass cover than those measuring < 13 mg kg-1. Tissue P concentrations were significantly correlated with changes in annual bluegrass cover on all evaluation dates during this 2-yr study. Treatments producing tissue P concentrations ranging from 4.0 to 5.5 g P kg-1 had less annual bluegrass cover than treatments producing tissue concentrations > 5.5 g P kg-1. Nitrogen had no effect on annual bluegrass encroachment and no N-by-P treatment interaction occurred during the study." |
Language: | English |
References: | 30 |
Note: | Partial reprint appears in Carolinas Green, September/October 2013, p. 12 Tables |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Raley, R. B., P. J. Landschoot, and J. T. Brosnan. 2013. Influence of phosphorus and nitrogen on annual bluegrass encroachment in a creeping bentgrass putting green. Int. Turfgrass Soc. Res. J. 12:p. 649-655. |
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| MSU catalog number: b2394179 |
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