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Soil Properties and Growth Characteristics by Production Periods of Zoysiagrass Sods

뗏장 재배기간에 따른 Zoysiagrass의 생육과 토양의 특성

  • Han, Jeong-Ji (Southern Forest Resources Research Center, Korea Forest Research Institute) ;
  • Lee, Kwang-Soo (Southern Forest Resources Research Center, Korea Forest Research Institute) ;
  • Choi, Su-Min (Southern Forest Resources Research Center, Korea Forest Research Institute) ;
  • Park, Yong-Bae (Southern Forest Resources Research Center, Korea Forest Research Institute) ;
  • Bae, Eun-Ji (Southern Forest Resources Research Center, Korea Forest Research Institute)
  • 한정지 (국립산림과학원 남부산림자원연구소) ;
  • 이광수 (국립산림과학원 남부산림자원연구소) ;
  • 최수민 (국립산림과학원 남부산림자원연구소) ;
  • 박용배 (국립산림과학원 남부산림자원연구소) ;
  • 배은지 (국립산림과학원 남부산림자원연구소)
  • Received : 2015.05.04
  • Accepted : 2015.09.08
  • Published : 2015.09.30

Abstract

In order to establish the efficient sod production and soil management, there is a need to perform research on the growing condition of zoysiagrass on soil environments. With an attempt to identify the growth of zoysiagrass and the chemical characteristics of soil according to different growing seasons, this study was carried out in separate areas where zoysiagrass has been grown for 1 year, 10 years, 20 years, and 30 years. As the growing season became longer, bulk density of the soil was increased, porosity and gaseous phase were decreased. The level of pH was highest in the area where zoysiagrass has been produced for 30 years, whereas total nitrogen and organic matters were found to be the greatest in where zoysiagrass has been produced for 1 year. Accordingly, the chemical properties of soil were deteriorated more in the area with continuous cropping than in the area with 1 year of cropping. As the time period of producing zoysiagrass became longer, growth of shoot and root were decreased. In this study, it is required to produce zoysiagrass through soil improvement in areas that have been used for production for over 10 years.

잔디 뗏장의 효율적인 생산과 토양 관리 시스템을 구축하고 재배방법을 개선하기 위한 기초 데이터를 제공하기 위해, 토양환경에 따른 잔디의 생육상태에 대한 연구를 수행 할 필요가 있다. 본 연구는 뗏장 생산의 재배기간에 따른 잔디의 생육과 토양 화학적 특성을 조사하기 위해 뗏장 재배기간이 1년, 10년, 20년, 그리고 30년 된 지역을 각각 조사하였다. 재배기간이 장기화됨에 따라, 토양 용적밀도는 증가하였고, 공극률과 기상은 감소하였다. pH는 30년 동안 재배된 곳에서 가장 높았고, 전질소와 유기물의 함량은 1년 동안 재배된 토양에서 가장 높았다. 결과적으로, 토양 화학적 특성은 1년 재배된 토양에서보다 계속적인 재배 토양에서 악화되었다. 잔디의 재배기간이 길어짐에 따라 지상부와 지하부의 생육이 감소하였다. 그러므로 계속적인 잔디 뗏장 생산 재배로 인한 토양 악화가 잔디의 품질과 생장을 감소시키므로, 10년 이상 연작된 지역에서는 토양 갱신을 통해 잔디생육을 향상시켜야 한다.

Keywords

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