摘要
在湖南长沙进行田间试验,研究10%精噁唑禾草灵.氰氟草酯乳油(商品名:百除)在稻田水、土壤及水稻植株中的消解与残留动态。结果表明:百除中2种有效成分精噁唑禾草灵和氰氟草酯在稻田环境中的消解均符合一级动力学方程。精噁唑禾草灵在稻田水、土壤及水稻植株中的半衰期分别为3.51、1.63和2.14 d,氰氟草酯的半衰期分别为3.18、1.61和2.05 d。在推荐使用剂量下,收获稻谷中精噁唑禾草灵和氰氟草酯的残留量低于美国、韩国或日本残留限量标准,因此本试验条件下收获的稻谷食用是安全的。
A HPLC method was used to explore degradation behavior and environmental safety of 10% fenoxaprop-pethyl · cyhalofop-butyl EC （Baichu） in rice. Results indicate that 1 ） degradation of fenoxaprop-p-ethyl and cyhalofop-butyl in paddy water, soil and rice plant all accorded with the one-level dynamic equation; 2） the half-life of fenoxaprop-pethyl in paddy water, soil and rice plant were 3.51, 1.63 and 2.14 d, respectively; 3 ） the half-life of cyhalofop-butyl in paddy water, soil and rice plant were 3.18, 1.61 and 2.05 d, respectively; and 4） when Baichu was applied at the recommended dose, residues of the two effective components were both lower than MRL.
出处
《生态与农村环境学报》
CAS
CSSCI
CSCD
北大核心
2008年第1期51-54,共4页
Journal of Ecology and Rural Environment
基金
农业部药检所合作项目(2005630)
