The Effects of Biological Control using the Composted Liquid Manure on Large Patch in Zoysiagrass (Zoysia japonica)

  • Ryu, Ju Hyun (Department of Horticultural Science & Biotechnology, Seoul National University) ;
  • Shim, Gyu Yul (Korea Turfgrass Research Institute) ;
  • Lee, Sang-Kook (Department of Biotechnology, Hoseo University) ;
  • Kim, Ki Sun (Department of Horticultural Science & Biotechnology, Seoul National University)
  • Received : 2014.11.21
  • Accepted : 2014.12.15
  • Published : 2014.12.31


This study was conducted to investigate whether several composted liquid manures (CLMs) are useful for biological control of large patch on zoysiagrass and investigate the chemical and biological factors to suppress large patch in soil treated with CLMs. The CLMs were produced at 4 different facilities for livestock excretion treatments located in Korea. Field experiments were carried out at 5 golf courses located near each facility. CLM and Chemical fertilizer (CF: water soluble fertilizer, 20-20-20) were applied four and three times with N at $12g\;m^{-2}$ per year, respectively. There was significant increase of concentration of K, Na, and Cu of soil treated with CLM compared to CF treatment. Among experimental plots, CN and GG2 plot sites were shown significant higher effect of biological control 80% and 50% respectively against large patch disease. The number of bacteria, Actinomycetes, and fungi in soil at these sites significantly increased and fluorescein diacetate hydrolytic activity was enhanced, while the soil was treated with CLM. The results of this study demonstrated that CLM application has effect on soil to suppress large patch and reduce the use of fungicide in environment-friendly turf management.


Compost;Fluorescein diacetate;Suppressive soil;Sustainable management


Supported by : Rural Development Administration


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