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Dissipation Pattern of Amisulbrom in Cucumber under Greenhouse Condition for Establishing Pre-harvest Residue Limit

생산단계 잔류허용 기준 설정을 위한 시설 재배 오이 중 살균제 Amisulbrom의 잔류특성 연구

  • Hwang, Kyu-Won (Department of Plant Life and Environmental Sciences, Hankyong National University) ;
  • Kim, Tae Wan (Department of Plant Life and Environmental Sciences, Hankyong National University) ;
  • Yoo, Jae-Hong (Agricultural Microbiology Division, National Academy of Agricultural Science, NAAS, RDA) ;
  • Park, Byeoung-Soo (Nanotoxtech Co., Research Station) ;
  • Moon, Joon-Kwan (Department of Plant Life and Environmental Sciences, Hankyong National University)
  • 황규원 (한경대학교 식물생명환경과학과) ;
  • 김태완 (한경대학교 식물생명환경과학과) ;
  • 유재홍 (농촌진흥청 국립농업과학기술원 농업미생물과) ;
  • 박병수 ((주)나노톡스텍) ;
  • 문준관 (한경대학교 식물생명환경과학과)
  • Received : 2012.11.05
  • Accepted : 2012.12.03
  • Published : 2012.12.31

Abstract

The dissipation patterns of amisulbrom in cucumber under a greenhouse condition was investigated to establish biological half-life and pre-harvest residue limit (PHRL). Amisulbrom residue in/on cucumber on the day of application under standard application condition was $0.15mg\;kg^{-1}$ and decreased to $0.06mg\;kg^{-1}$ after 5 days after treatment, so that biological half-life calculated 3.6 day, while initial concentration of amisulbrom twice application 3 days interval under standard application condition was $0.35mg\;kg^{-1}$ and decreased to $0.09mg\;kg^{-1}$ after same period and the biological half-life calculated 2.4 day. PHRL was suggested by prediction curve calculated from the decay constant of amisulbrom at standard rate. For example, $1.83mg\;kg^{-1}$ at 5 days before harvest and $1.03mg\;kg^{-1}$ at 2 days before harvest were suggested.

실내 재배 오이 중 살균제 amisulbrom의 생물학적 반감기 및 생산단계 잔류허용기준을 제안하고자 약제를 살포하고 재배기간 동안 잔류량을 확인하였다. Amisulbrom 1회 살포시 초기 잔류 농도는 $0.15mg\;kg^{-1}$이었으며 살포 5일 후 $0.06mg\;kg^{-1}$으로 감소되어 반감기는 3.6일이었다. 3일 간격으로 기준량 2회 살포시 초기 잔류량은 $0.35mg\;kg^{-1}$이었으며 살포 5일 후 $0.09mg\;kg^{-1}$으로 감소되어 반감기는 2.4일 이었다. 1회 처리 시의 잔류감소 회귀식을 이용한 생산단계 잔류허용 기준(PHRL)은 수확 5일 전 $1.83mg\;kg^{-1}$ 또는 2일 전 $1.03mg\;kg^{-1}$ 등으로 제안하였다. Amisulbrom 액상 수화제를 안전사용 기준에 따라 1회 살포, 또는 3일 간격 2회 살포 시 모두 살포 직후 잔류량은 오이 중 농약잔류 허용기준 보다 낮았다.

Keywords

References

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