Adsorption and leaching characteristics of fungicide hexaconazole

살균제 hexaconazole의 홉착 및 용탈 특성

  • 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)
  • 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)
  • Published : 2004.03.30

Abstract

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.

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