河南农业科学2012，Vol.41Issue(1)：87-91,5.
烟嘧磺隆在玉米和土壤中的残留及消解动态研究
Residues and Dissipation Dynamics of Nicosulfuron in Corn and Soil
摘要
Abstract
Dissipation dynamics and residues of 75% nicosulfuron WDG in corn,corn plant and soil were studied under field conditions. The nicosulfuron was determined by UPLC-MS. The fortified recoveries in corn,corn plant and soil at 0. 05 - 0. 2 mg/kg were 78. 32% - 98. 84% ,with the relative standard deviation of 1. 73% -5. 98%. The detection limit of the analytical method was 0. 005 ng at a signal-to-noise ratio of 3,and the limit of quantification was 0. 002 5 mg/kg in corn,corn plant and soil. The dissipation dynamics of nicosulfuron in the field trials in Henan and Hei-longjiang province were investigated in 2009 and 2010. The results showed that the half-life period of nicosulfuron was 0. 58 - 1. 45 d in corn plants, and 9. 63 -13. 59 d in soil. The final residues of nicosulfuron in corn,corn plant and soil were all not detected. No residue detected and short half-life in corn,corn plant and soil suggested that nicosulfuron was an easily dissipated and low residue pesticide,so it could be safely used on corn crops when the dosage below 90 g. A. I. /ha.关键词
除草剂/烟嘧磺隆/玉米/土壤/消解动态/最终残留量Key words
herbicide/nicosulfuron/corn/soil/dissipation dynamics/final residues分类
农业科技引用本文复制引用
吴绪金,钟红剑,马朝旺,张军锋..烟嘧磺隆在玉米和土壤中的残留及消解动态研究[J].河南农业科学,2012,41(1):87-91,5.基金项目
农业部农药登记残留试验项目(2009H0100) （2009H0100）
