The Korean Journal of Pesticide Science (농약과학회지)

The Korean Society of Pesticide Science (한국농약과학회)
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Residual Characteristics and Behavior of Azoxystrobin in Ginseng by Cultivation Conditions

인삼 중 azoxystrobin의 재배방법별 잔류특성 및 행적

  • Lee, Jae Yun (Department of Environmental and Biological Chemistry, College of Agriculture, Life and Environmental Sciences, Chungbuk National University) ;
  • Noh, Hyun Ho (Department of Environmental and Biological Chemistry, College of Agriculture, Life and Environmental Sciences, Chungbuk National University) ;
  • Park, Hyo Kyoung (Department of Environmental and Biological Chemistry, College of Agriculture, Life and Environmental Sciences, Chungbuk National University) ;
  • Kim, Jin Chan (Department of Environmental and Biological Chemistry, College of Agriculture, Life and Environmental Sciences, Chungbuk National University) ;
  • Jeong, Hye Rim (Department of Environmental and Biological Chemistry, College of Agriculture, Life and Environmental Sciences, Chungbuk National University) ;
  • Jin, Me Jee (Department of Environmental and Biological Chemistry, College of Agriculture, Life and Environmental Sciences, Chungbuk National University) ;
  • Kyung, Kee Sung (Department of Environmental and Biological Chemistry, College of Agriculture, Life and Environmental Sciences, Chungbuk National University)
  • 이재윤 (충북대학교 농업생명환경대학 환경생명화학과) ;
  • 노현호 (충북대학교 농업생명환경대학 환경생명화학과) ;
  • 박효경 (충북대학교 농업생명환경대학 환경생명화학과) ;
  • 김진찬 (충북대학교 농업생명환경대학 환경생명화학과) ;
  • 정혜림 (충북대학교 농업생명환경대학 환경생명화학과) ;
  • 진미지 (충북대학교 농업생명환경대학 환경생명화학과) ;
  • 경기성 (충북대학교 농업생명환경대학 환경생명화학과)
  • Received : 2015.03.27
  • Accepted : 2015.03.30
  • Published : 2015.03.31
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Abstract

To determine residual characteristics of azoxystrobin in ginseng under different cultivation conditions such as use of straw mat on cultivation soil and filling gap between ginseng stem and soil surface and also to elucidate its approximate behavior after spraying, 20% azoxystrobin suspension concentrate solution was sprayed 4 times onto 5-year-old ginseng with 10 days interval at a application rate of about 200 L/10 a and then residues in samples were analyzed. The residue level was lower in case of use of straw mat and filling the gap with soil than in case of no use of straw mat and no filling the gap, representing that use of straw mat and filling the gap with soil were contributed to decrease of pesticide residues in ginseng. A large portion of the test pesticide distributed onto ginseng leaf with a higher specific surface area. The amounts of azoxystrobin residues decreased in ginseng leaf, while increased on soil surface, as close to harvest. About 0.1% of azoxystrobin sprayed was distributed in ginseng root and 12.7-20.4% (mean 16.6%) of azoxystrobin could be decreased for dietary intake by removing of rhizome from ginseng root before intake.

인삼의 재배환경에 따른 잔류특성을 조사하고 살포 농약의 행적을 알아보기 위하여 5년근 인삼포에 덮개 유무와 인삼 줄기의 움직임으로 생긴 구멍을 흙으로 메우는 방법 여부의 서로 다른 조건에서 azoxystrobin (20% SC)을 안전사용기준의 기준량과 배량농도로 수확 7일전까지 10일 간격으로 4회 살포하였으며, 행적 구명 시험을 위해서는 기준량을 1회 살포한 후 분석시료를 채취하였다. 재배기간 중 덮개를 설치하고 구멍을 막은 경우가 잔류량이 낮아 덮개 설치와 구멍 메우기가 잔류량 감소에 기여하는 것으로 판단되었다. 인삼에 살포한 azoxystrobin은 비표면적이 큰 잎에 가장 많이 분포하였으며, 살포시기가 인삼의 수확기에 근접할수록 잎 중 잔류량은 감소하였으나 토양표면의 검출량은 증가하였다. 뇌두를 포함한 인삼 뿌리 중 시험농약의 분포율은 약 0.1%이었으며, 인삼 섭취 시 뇌두를 제거할 경우 12.7-20.4%(평균 16.6%)의 잔류농약 섭취를 감소시키는 효과가 있었다.

Keywords

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