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Establishment Efficiency of 'Zenith' Zoysiagrass by Plugging  

Cho, Yun-Sik (College of Bio-resources Science, Dankook University)
Ahn, Sang-Hyun (College of Bio-resources Science, Dankook University)
Yang, Geun-Mo (College of Bio-resources Science, Dankook University)
Choi, Joon-Soo (College of Bio-resources Science, Dankook University)
Publication Information
Asian Journal of Turfgrass Science / v.21, no.1, 2007 , pp. 9-21 More about this Journal
Abstract
Research was initiated to examine establishment efficiency of zoysiagrass by plugging. Zoysiagrass is known to be a slowly establishing turfgrass species. Properly-treated zoysiagrass seed can speed up the establishment rate, while initial irrigation practice is intensively required after seeding. A planting method with small plugs($2.5{\times}2.5cm$) from seeding can overcome initial watering requirement. Establishment speed, however, can vary with planting dates, planting spaces, and plastic film cover in early stage. Establishment characteristics were investigated for two years by planting dates that were April 5, May 18, July 13, August 24 and October 29 in 2004 and April 6 in 2005. They were also compared with three different spaces($20{\times}20,\;25{\times}25,\;and\;30{\times}30cm$) and three different fertilizer levels(15, 30, and $45g\;N{\cdot}m^{-2}$). Ground coverage reached to 90% in plugs of 'Zenith' zoysiagrass planted on April 5. It increased suddenly in period of July to August, resulting in about 50% of full establishment rate. Establishment rates were significantly faster over 9% in plugs spaced at $20{\times}25cm$ than in those at $30{\times}30cm$. No significant differences were observed on the stolen number and stolen length in the study. Survival rate in zoysiagrass plug was over 90% at all plantings. These results demonstrated that zoysiagrass establishment using small plug from seeding is considered to be a safe and efficient method.
Keywords
establishment speed; planting date; planting space; plugging; zoysiagrass;
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