Full TGIF Record # 302076
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Web URL(s):https://scisoc.confex.com/scisoc/2018am/meetingapp.cgi/Paper/112397
    Last checked: 11/14/2018
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Publication Type:
i
Report
Content Type:Abstract or Summary only
Author(s):Li, Luqi; Gaussoin, Roch E.
Author Affiliation:Li: Agronomy and Horticulture, University of Nebraska-Lincoln, Lincoln, NE; Gaussoin: University of Nebraska - Lincoln, Lincoln, NE
Title:Interference between Kentucky bluegrass (Poa pratensis) and yellow nutsedge (Cyperus esculentus) in a home lawn
Section:C05 turfgrass science
Other records with the "C05 turfgrass science" Section

Turf ecology and management I: Physiology, irrigation, and abiotic stress oral (includes student competition)
Other records with the "Turf ecology and management I: Physiology, irrigation, and abiotic stress oral (includes student competition)" Section
Meeting Info.:Baltimore, Maryland: November 4-7, 2018
Source:ASA, CSSA and SSSA International Annual Meetings. 2018, p. 112397.
Publishing Information:[Madison, Wisconsin]: [American Society of Agronomy, Crop Science Society of America, and Canadian Society of Agronomy]
# of Pages:1
Keywords:TIC Keywords: Comparisons; Cyperus esculentus; Poa pratensis; Species evaluation; Species profile; Weed control
Geographic Terms:Nebraska
Abstract/Contents:"Yellow nutsedge (Cyperus esculentus L.) is one of the most widely distributed and troublesome weeds in the world and has been an increasing problem in Nebraska. Most home lawns that experienced yellow nutsedge invasion were cool season (C3) turf, whereas yellow nutsedge is a warm season (C4) perennial weed. The objective of this study was to evaluate the effects of common lawn maintenance practices, irrigation, and fertility, on the development of yellow nutsedge in established Kentucky bluegrass (Poa pratensis L.) lawn, and interference between the two species. The hypothesis was that C4 yellow nutsedge is more competitive than C3 Kentucky bluegrass at typical home lawn setting. The study was initiated in May 2017, yellow nutsedge emerged from a single tuber was either growing as a monoculture or growing within Kentucky bluegrass turf as a polyculture. Irrigation levels were no irrigation, 80% ET replacement or 42 L water per plot. Fertility levels were no additional fertility, 97, or 195 kg N/ha/year. The area was mowed at 7.6 cm weekly with yellow nutsedge shoot tissue collected before mowing. Yellow nutsedge and surrounding Kentucky bluegrass turf in a 20.3 cm diameter and 20.3 cm depth were extracted monthly. Monoculture yellow nutsedge produced as many as 5100 tubers in one growing season, whereas 32 tubers were produced in polyculture plots under the same conditions. Cumulative yellow nutsedge shoot productions were 30 times higher in monoculture compared to polyculture. In contrast, Kentucky bluegrass shoot productions were not affected by the presence of yellow nutsedge. Results suggested maintaining a healthy turf is the key to reduce the invasiveness of yellow nutsedge. In addition, irrigation based on ET and applying an optimal amount of fertilizer based on the expectation of turf quality will help further reduce infestation."
Language:English
References:0
Note:This item is an abstract only!
"142-4"
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Li, L., and R. E. Gaussoin. 2018. Interference between Kentucky bluegrass (Poa pratensis) and yellow nutsedge (Cyperus esculentus) in a home lawn. Agron. Abr. p. 112397.
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    Last checked: 11/14/2018
    Requires: JavaScript
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