농약과학회지 (The Korean Journal of Pesticide Science)

  • 제8권1호
  • /
  • Pages.46-53
  • /
  • 2004
  • /
  • 1226-6183(pISSN)
  • /
  • 2287-2051(eISSN)
한국농약과학회 (The Korean Society of Pesticide Science)
권호 표지

살균제 hexaconazole의 홉착 및 용탈 특성

Adsorption and leaching characteristics of fungicide hexaconazole

  • 경기성 (농업과학기술원 농산물안전성부) ;
  • 이병무 (농업과학기술원 농산물안전성부) ;
  • 임양빈 (농업과학기술원 농산물안전성부) ;
  • 이영득 (대구대학교 농화학과) ;
  • 한성수 (원광대학교 농화학과) ;
  • 최주현 (농업과학기술원 농산물안전성부) ;
  • 김진화 (농업과학기술원 농산물안전성부) ;
  • 류갑희 (농업과학기술원 농산물안전성부) ;
  • 이재구 (충북대학교 농화학과)
  • Kyung, Kee-Sung (Department of Crop Life Safety, National Institute of Agricultural Science & Technology) ;
  • Lee, Byung-Moo (Department of Crop Life Safety, National Institute of Agricultural Science & Technology) ;
  • Ihm, Yang-Bin (Department of Crop Life Safety, National Institute of Agricultural Science & Technology) ;
  • Lee, Young-Deuk (Division of Life Resources, Daegu University) ;
  • Han, Seong-Soo (Department of Agricultural Chemistry, Wonkwang University) ;
  • Choi, Ju-Hyeon (Department of Crop Life Safety, National Institute of Agricultural Science & Technology) ;
  • Kim, Jin-Hwa (Department of Crop Life Safety, National Institute of Agricultural Science & Technology) ;
  • Ryu, Gab-Hee (Department of Crop Life Safety, National Institute of Agricultural Science & Technology) ;
  • Lee, Jae-Koo (Department of Agricultural Chemistry, Chungbuk National University)
  • 발행 : 2004.03.30
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초록

살균제 hexaconazole의 용탈 가능성을 평가하기 위하여 토양 흡착과 담수토양중 용탈을 시험하였다. 토양홉착성은 Fretmdlich 홉착등온식에 부합하였으며, Kf값은 10.56-18.01로써 토양 용탈성은 매우 낮은 것으로 예측되었다. Hexaconazole의 용탈량은 숙성잔류물 함유 토양보다는 신생잔류물 함유 토양에서, 벼 무 재배구보다는 벼 재배구에서 높게 나타났으며, 컬럼 표토에 처리한 방사능의 대부분 약 86-99%가 표토로부터 5cm 부위에 분포하였다. 이상의 결과와 $K_{oc}$값이 1,400-1,552이고 Grotmdwater Ubiquiy Score (GUS) index가 1.25-1.35인 점을 고려할 때 hexaconazole은 비용탈성 농약(improbable leacher)으로 분류되어 수도재배지에서의 용탈 가능성은 매우 낮은 것으로 평가되었다.

Adsorption and leaching characteristics of hexaconazole were investigated to estimate the mobility potential of the compound in the soil environment. As well fitted to Freundlich adsorption isotherm, adsorptivity of hexaconazole, ranged 10.56-18.01 of Kf values, seemed high enough to be immobile in soil. This chemical leached more faster from fresh soil with rice plants. Most of $^{14}C$ (86-99% of originally applied $^{14}C$) was distributed within 5 cm soil depth from surface. Considering Koc values of 1,400-1,552 and Groundwater Ubiquity Score (GUS) indices of 1.25-1.35 as well as results from leaching experiment with soil column, hexaconazole falls into the category of improbable leacher, suggesting little mobility in soil.

키워드

참고문헌

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