期刊论文

Degradation Dynamic of Iodosuifuron-methyl-sodium in Soil and Wheat

中文

农药

1006-0413

2010

49

6

426-428

10.16820/j.cnki.1006-0413.2010.06.011

环境保护部公益基金（200809093）；

本校为第一机构

在长沙市马坡岭和北京市通县开展了碘甲磺隆钠盐在小麦植株和土壤中的残留降解动态试验。两地试验结果表明:在施药剂量为28.2ga.i./hm2时,长沙市马坡岭试验点碘甲磺隆钠盐在小麦植株和土壤中的半衰期分别为4.1、7.4d,北京市通县试验点碘甲磺隆钠盐在小麦植株和土壤中的半衰期分别为5.4、22d,碘甲磺隆钠盐在小麦茎叶和土壤中都能迅速降解,其中在小麦植株中的降解更快。6.25%碘甲磺隆钠盐水分散粒剂用于小麦田除草,施药剂量分别为18.8、28.2ga.i./hm2时,施药1次,收获期小麦籽粒、麦秆及土壤中的残留均低于0.003mg/kg。

In order to prove the residue degradation rules after being used in wheat field and assess the security of iodosuifuron-methyl-sodium(IMS),a field-supervised experiment was conducted to reveal the degradation dynamics of IMS in soil and wheat in Changsha and Beijing,respectively.When the applied concentration of this herbicide was 28.2 g a.i./ha,the half-lives of IMS in wheat and soil was 4.1 and 7.4 d in Changsha,respectively,that was 5.4 and 22 d in...