Korean Journal of Environmental Agriculture (한국환경농학회지)
- Volume 2 Issue 2
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- Pages.59-64
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- 1983
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- 1225-3537(pISSN)
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- 2233-4173(eISSN)
Persistence of 2,4-D and MCPP in Soil
토양중(土壤中) 2,4-D와 MCPP의 잔류특성(殘留特性)
- Lee, Young-Deuk (Agricultural Chemicals Research Institute,ORD) ;
- Lee, Hae-Keun (Agricultural Chemicals Research Institute,ORD) ;
- Park, Young-Sun (Agricultural Chemicals Research Institute,ORD)
- Published : 1983.12.30
Abstract
A study was undertaken to investigate the persistence of 2,4-D and MCPP in two different Suweon soils under field conditions. MCPP was extracted from soil with aqueous calcium hydroxide solution and then derivatized to pentafluorobenzyl ester to enhance the electron capture sensitivity. Total recovery of MCPP from soil was 85.6% and the detection limit for 20g sample was 0.02 ppm. Ethyl ester of 2,4-D applied to soil was rapidly hydrolysed to 2,4-D with the half-life of less than 1 day. Half-life of total 2,4-D ethyl ester, including 2,4-D, incorporated into soils at a rate of 0.045 ㎏ a.i./10a was
수원소재(水原所在) 2개토양(個土壤)에서 2,4-D ethyl ester 및 MCPP의 토양중(土壤中) 잔유소장(殘油消長)을 조사(調査)한 결과(結果)는 다음과 같다. 1) 살포(撒布)한 2,4-D ethyl ester는 토양중(土壤中)에서 신속(迅速)히 가수분해(加水分解)되어 2,4-D를 생성(生成)하였다. 2) 포장조건하(圃場條件下)에서 2,4-D 잔유분(殘留分)을 포함한 총(總) 2,4-D ethyl ester의 반감기(半減期)는
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