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| Web URL(s): | https://scisoc.confex.com/scisoc/2023am/meetingapp.cgi/Paper/153446
Last checked: 12/01/2023 |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Kowalewski, Alexander R.;
McDonald, Brian;
Wang, Ruying;
Schmid, Charles J.;
Braithwaite, Emily T. |
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| Author Affiliation: | Kowalewski: Presenting Author and Horticulture, Oregon State University, Corvallis, OR; McDonald: Oregon State Universtiy, Corvallis, OR; Wang and Schmid: Horticulture, Oregon State University, Corvallis, OR; Braithwaite: Horticulture, Oregon State University, Salem, OR |
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| Title: | Irrigation frequencies and reference evapotranspiration replacement affecting weed encroachment in tall fescue in Western Oregon |
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| Section: | Turfgrass water conservation and management oral (includes student competition)
Other records with the "Turfgrass water conservation and management oral (includes student competition)" Section
C05 turfgrass science
Other records with the "C05 turfgrass science" Section
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| Meeting Info.: | St. Louis, Missouri: October 29-November 1, 2023 |
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| Source: | ASA, CSSA, SSSA International Annual Meeting. 2023, p. 153446. |
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| Publishing Information: | [Madison, Wisconsin]: [American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America] |
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| # of Pages: | 1 |
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| Abstract/Contents: | "Annual bluegrass (Poa annua L.) encroachment may increase when turfgrass is maintained with excessive irrigation; however, with proper deficit irrigation, annual bluegrass germination may be suppressed while desirable turfgrass is sustained. Previous research conducted on perennial ryegrass (Lolium perenne L.) determined that irrigation once per week reduced annual bluegrass populations but was also detrimental to perennial ryegrass quality compared to irrigation applied several times per week. Considering these results infrequent irrigation may be a potential weed management tool for turfgrass species with greater drought tolerance. Therefore, the goal of this project was to determine the optimal irrigation regime for suppressing annual and perennial weeds in tall fescue (Festuca arundinacea Schreb) stands during the summer months. Factors in this experiment included two irrigation frequencies (once or 4 times a week) and two reference evapotranspiration (ETref) replacement rates (45% and 80%) compared to a control treatment (no irrigation). The control treatment was able to sustain acceptable turfgrass quality for most of the year, with the exception being late August and September in 2021 and 2022. The control treatment also produced substantial reductions in weed populations (annual bluegrass, spotted spurge, wood sorrel and perennial broadleaf weeds). Results also found that tall fescue will remain visually acceptable when soil volumetric water content is maintained around 15% or greater in a silty clay loam. The 80% ET replacement rates resulted in the greatest turf quality, followed closely by the 45% ET replacement treatment." |
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| Language: | English |
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| References: | 0 |
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| Note: | "39-10"
This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Kowalewski, A. R., B. McDonald, R. Wang, C. J. Schmid, and E. T. Braithwaite. 2023. Irrigation frequencies and reference evapotranspiration replacement affecting weed encroachment in tall fescue in Western Oregon. Agron. Abr. p. 153446. |
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| Web URL(s):
https://scisoc.confex.com/scisoc/2023am/meetingapp.cgi/Paper/153446
Last checked: 12/01/2023 |
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