摘要
本文进行了灭多威在油菜而上壤中残留与降解的动态研究。按推荐量施药,灭多威在油菜和土壤中降解较迅速,降解半衰期分别为5.54天和5.o4天,施药后15天,灭多威在油菜和上壤中的降解率分别钩95.6%和97.7%。按不同浓度施药,灭多威在油菜和土壤中的残留量与施药量是正相关。本文还以降解速度、残留量,并参考国外残留标准,评价了灭多威对蔬菜、土壤的污染程度。结果表明,按推荐量施药,灭多威对蔬菜。
Residue and degradation of rnethomyl in rapes andsoils were studied.Applying at recommended rates,methornylwas degraded rapidly. The half-lives of degradation in rapesand soils were 5.54 days and 5.04 days respectively. In 15days, he degraded rates of methomyl in rapes and soils were95.6%and 97.7%respectively. Residues of rnethorrJyl wereincreased with increasing of the amount of used methomyl.The degree of methomyl pollution was evaluated with thespeed of degradation,residues and U.S.tolerances ofmethomyl in vegetables.
出处
《农药》
CAS
北大核心
1995年第5期31-32,42,共3页
Agrochemicals
关键词
灭多威
残留量
降解
油菜
土壤
methomyl, residue,half-life, degradation.