农药学学报2011，Vol.13Issue(2)：169-173,5.DOI:10.3969/j.issn.1008-7303.2011.02.12
烯酰吗啉顺反异构体在土壤中的降解动态研究
Study on degradation dynamics of Z- and E-isomers of dimethomorph in soils
摘要
Abstract
The degradation of dimethomorph in three kinds of soils including Jilin black soil, Henan cinnamon soil and Jiangxi red soil were investigated in laboratory conditions. The results indicated that the degradation half-life of dimethomorph were 69 d, 69 d and 462 d in Jilin black soil, Henan cinnamon soil and Jiangxi red soil, respectively. Dimethomorph was classified into middle or difficultly degradation of pesticide. The degradation half-life in Jilin black soil, Henan cinnamon soil and Jiangxi red soil were 89 d, 126 d and 533 d for Z-isomer and 53 d, 29 d and 408 d for E-isomer. The degradation rates of Z-isomer are slower than E-isomer in all three kinds of soils tested. The ratios of E-isomer to Z-isomer changed obviously during degradation process in Henan cinnamon soil. The degradation rate of dimethomorph in laboratory condition is lower than that of in field condition abviously.关键词
烯酰吗啉/土壤/降解/半衰期/顺式异构体/反式异构体Key words
dimethomorph/ soil/ degradation/ half-life/ Z-isomer/ E-isomer分类
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朴秀英,陶传江,姜辉,王晓军..烯酰吗啉顺反异构体在土壤中的降解动态研究[J].农药学学报,2011,13(2):169-173,5.
