Full TGIF Record # 310240
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Web URL(s):https://scisoc.confex.com/crops/2019am/meetingapp.cgi/Paper/120571
    Last checked: 01/31/2020
Publication Type:
Content Type:Abstract or Summary only
Author(s):Carr, Tyler Q.; Karcher, Douglas E.; Richardson, Michael D.
Author Affiliation:University of Arkansas, Fayetteville, AR
Title:Determining the water requirements of Kentucky bluegrass as affected by deficit irrigation and soil texture
Section:C05 turfgrass science
Other records with the "C05 turfgrass science" Section

Turf ecology and management oral II: Soil, water, plant nutrition, and biotic stress (includes student competition)
Other records with the "Turf ecology and management oral II: Soil, water, plant nutrition, and biotic stress (includes student competition)" Section
Meeting Info.:San Antonio, Texas: November 10-13, 2019
Source:ASA, CSSA and SSSA International Annual Meetings. 2019, p. 120571.
Publishing Information:[Madison, Wisconsin]: [American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America]
# of Pages:1
Keywords:TIC Keywords: Cultivar evaluation; Cultivar variation; Deficit irrigation; Evapotranspiration; Irrigation frequency; Irrigation requirements; Lysimeters; Poa pratensis; Soil texture
Cultivar Names:Mallard; Geronimo
Abstract/Contents:"Turfgrasses provide many functional, environmental, and aesthetic benefits, but many people perceive lawns as only a visual benefit that requires significant water inputs. The use of drought tolerant grasses and deficit irrigation practices can reduce water use without sacrificing lawn quality, but a lawns irrigation requirement may vary by soil texture or irrigation frequency. The objective of this study was to determine the irrigation requirement of Kentucky bluegrass (Poa pratensis L.), as affected by cultivar, irrigation frequency, and soil texture. Two Kentucky bluegrass cultivars (Mallard and Geronimo), two soil textures (silt loam and loamy sand), two irrigation frequencies (1 and 3x weekly), and two irrigation volumes (40 and 80% reference evapotranspiration) were evaluated in a complete factorial field lysimeter experiment. Lysimeters were weighed prior to irrigation, and actual evapotranspiration was calculated between successive lysimeter weighing events.The experiment was conducted over three runs: late summer 2018, and early and late summer 2019. Lawn quality was determined by evaluating green turf coverage weekly. Lysimeters irrigated to replace 40% reference evapotranspiration and containing loamy sand resulted in less green coverage than those grown in silt loam. Lysimeters replacing 80% reference evapotranspiration averaged 1.8x more water use than 40% reference evapotranspiration over the three experimental runs. Water use was significantly affected by soil texture only during the late summer 2018 experimental run, with lysimeters containing silt loam and loamy sand using 23.8 and 22.5 mm per week, respectively. These results imply that, under prolonged drought stress, soil texture has minimal effect on water consumption."
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Carr, T. Q., D. E. Karcher, and M. D. Richardson. 2019. Determining the water requirements of Kentucky bluegrass as affected by deficit irrigation and soil texture. Agron. Abr. p. 120571.
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    Last checked: 01/31/2020
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