Korean Journal of Environmental Agriculture (한국환경농학회지)
- Volume 16 Issue 1
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- Pages.72-79
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- 1997
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- 1225-3537(pISSN)
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- 2233-4173(eISSN)
Leaching and Adsorption of Flupyrazofos(KH-502) in the Soil
Flupyrazofos(KH-502)의 토양 중 용탈 및 흡착
- Yang, Jae-E (Dept. of Agric. Chem. Kangwon National University) ;
- Cho, Boo-Yeon (Sung-Bo Chemicals Co., Ltd. Research Institute) ;
- You, Kyoung-Youl (Sung-Bo Chemicals Co., Ltd. Research Institute)
- Published : 1997.03.31
Abstract
Adsorption, leaching, and retention of the Flupyrazofos(KH-502), a new active ingredient for insecticide, in the soils under laborarory and field conditions were investigated to provide the basic data for the safety use and to assess a secondary impact of this insecticide on soil and water environments. A significant power function relation was found between the adsorbed KH-502 and time, representing that 45% of the added KH-502 was adsorbed within 30 min. but a quasiequilibrium was reached after 6 to 12 hr with a slower adsorption. Adsorption phenomena followed th first-order kinetics and time required for 50% adsorption was 5.8 hr. The equilibrium adsorption isotherm was explained by the Freundlich equation and was classified as S-type. The amounts of KH-502 leached through the soil column (C) as compared to initial conc. (
신규 활성물질인 Flupyrazofos(KH-502)의 토양에서의 흡착성, 용탈성 및 잔류성을 실내조건과 포장조건하에서 연구하여 본 공시약제의 안전사용을 위한 기초자료를 제공하고 토양-수질환경에 미칠 영향을 예측 평가하기 위한 목적으로 수행한 연구결과는 다음과 같다. 1. Flupyrazofos의 흡착량과 시간과의 사이에는 유의성있는 power function 관계가 있어서, 흡착이 빨리 일어나서 반응 30분 후에 45%가 흡착되고,
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