摘要
在湖南和浙江采用田间试验方法,研究了苯醚甲环唑在西瓜和土壤中的消解动态。结果表明:苯醚甲环唑在西瓜全果中的消解速度明显快于在西瓜地土壤中的消解速度,而在湖南黄红土壤中的消解速度比在浙江灰潮土中慢;在西瓜全果中的消解半衰期为5.12～5.60 d,在土壤中的消解半衰期为9.36～11.95 d。按照《化学农药环境安全评价实验准则》中划分的标准,可知苯醚甲环唑为低残留、易降解的农药。
The degradation dynamic of difenoconazole in watermelon and soil was studied through field trials in Hunan and Zhejiang,respectively.The results showed that difenoconazole degraded more rapidly in watermelon than that in soil,but it degraded more rapidly in calcareous alluvial soil in Zhejiang than that in yellow-red soil in Hunan.The half-life of difenoconazole was 5.12～5.60 d in watermelon and 9.36～11.95 d in soil.In accordance with the division standards from the Experimental Criteria of Environmental Safety Evaluation for Chemical Pesticides,it could be known that the difenoconazole is a kind of low residual and easily degraded pesticide.
出处
《湖南农业科学》
2010年第10期81-83,共3页
Hunan Agricultural Sciences
关键词
苯醚甲环唑
消解
西瓜
土壤
difenoconazole
degradation
watermelon
soil
