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Improvement of Green-up of Zoysiagrass and Cool-season Grass during Early Spring in Korea  

Lee Jae-Pil (KVbio Inc.)
Kim Doo-Hwan (Dept. of Molecular Biology, Konkuk University)
Publication Information
Asian Journal of Turfgrass Science / v.19, no.2, 2005 , pp. 103-113 More about this Journal
Abstract
This study was conducted to improve the green up of zoysiagrass(2. japonica) and cool-season grass($80\%$ Kentucky bluegrass+$20\%$ Perennial ryegrass) during early spring in Korea. Treatments fur zoysiagrass were control, Polyethylene film, Black screen, Black screen+polyethylene film, Green screen+polyethylene film, Polyethylene film+Black screen, Polyethylene film+Green screen, low mowing height(1.5-2cm) and homing. For cool-season grass, non-punched Polyethylene film, punched Polyethylene film treatments were included. Application dates of covering with Polyethylene film were Feb. 22, Feb. 28, March 7, and March 14. Green up was evaluated by visual color rating. The results are as follows; 1. The best method for improving green up of zoysiagrass were Polyethylene film and optimal covering day for zoysiagrass was on Feb. 22. 2. Low mowing height(1.5-2cm) and burning of zoysiagrass showed the faster greening 1$\sim$weeks before than control. .3 Non-punched Polyethylene film covering was best to improve green up of cool-season grass. More time of covering time with cool-season grass induces rapid green up.
Keywords
Burning; cool-season to turfgass; covering material; covering time; early spring; green up; low mowing height; zoysiagrass;
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