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Suitability Classes for Italian Ryegrass (Lolium multiflorum Lam.) Using Soil and Climate Digital Database in Gangwon Province

강원도에서 토양과 기후 데이터베이스를 이용한 이탈리안 라이그라스의 재배 적지 구분

  • Kim, Kyung-Dae (Gangwondo Agricultural Research and Extension Services) ;
  • Sung, Kyung-Il (Dept. of animal Life System, Kangwon National University) ;
  • Jung, Yeong-Sang (Dept. of biological Environment, Kangwon National University) ;
  • Lee, Hyun-Il (Dept. of biological Environment, Kangwon National University) ;
  • Kim, Eun-Jeong (Dept. of animal Life System, Kangwon National University) ;
  • Nejad, Jalil Ghassemi (Dept. of animal Life System, Kangwon National University) ;
  • Jo, Mu-Hwan (Foundation for the Rural Youth) ;
  • Lim, Young-Chul (National Institute of Animal Science)
  • 김경대 (강원도농업기술원) ;
  • 성경일 (강원대학교 동물생명시스템학과) ;
  • 정영상 (강원대학교 바이오자원환경학과) ;
  • 이현일 (강원대학교 바이오자원환경학과) ;
  • 김은정 (강원대학교 동물생명시스템학과) ;
  • ;
  • 조무환 (농어촌청소년육성재단) ;
  • 임영철 (국립축산과학원)
  • Received : 2012.11.07
  • Accepted : 2012.12.03
  • Published : 2012.12.31

Abstract

As a part of establishing suitability classification for forage production, use of the national soil and climate database was attempted for Italian ryegrass (Lolium multiflorum Lam., IRG) in Gangwon Province. The soil data base were from Heugtoram of the National Academy of Agricultural Science, and the climate data base were from the National Center for Agro-Meteorology, respectively. Soil physical properties including soil texture, drainage, slope available depth and surface rock contents, and soil chemical properties including soil acidity and salinity, organic matter content were selected as soil factors. The crieria and weighting factors of these elements were scored. Climate factors including average daily minimum temperature, average temperature from March to May, the number of days of which average temperature was higher than $5^{\circ}C$ from September to December, the number of days of precipitation and its amount from October to May of the following year were selected, and criteria and weighting factors were scored. The electronic maps were developed with these scores using the national data base of soil and climate. Based on soil scores, the area of Goseong, Sogcho, Gangreung, and Samcheog in east coastal region with gentle slope were classified as the possible and/or the proper area for IRG cultivation in Gangwon Province. The lands with gentle or moderate slope of Cheolwon, Yanggu, Chuncheon, Hweongseong, Pyungchang and Jeongsun in west side slope of Taebaeg mountains were classified as the possible and/or proper area as well. Based on climate score, the east coastal area of Goseong, Sogcho, Yangyang, Gangreung and Samcheog could be classified as the possible or proper area. Most area located on west side of the Taebaeg mountains were classified as not suitable for IRG production. In scattered area in Chuncheon and Weonju, where the scores exceeded 60, the IRG cultivation should be carefully managed for good production. For better application of electronic maps.

Keywords

Suitability class;Soil factor;Climate factor;Italian ryegrass;Gangwon Province

Acknowledgement

Grant : 양질의 조사료 생산을 위한 맵핑시스템 구축

Supported by : 농촌진흥청

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