镉对苄嘧磺隆在水稻土中降解动力学特性的影响  

Effects of Cd on the Degradation Dynamics of Bensulfuron-Methyl in a Paddy Soil

作　　者：谢晓梅[1] 胡洲[1] 

机构地区：[1]浙江大学环境与资源学院实验教学中心,浙江杭州310029

出　　处：《实验室研究与探索》2005年第1期21-22,86,共3页Research and Exploration In Laboratory

摘　　要：通过土壤培养实验,研究了不同浓度重金属镉与苄嘧磺隆的交互作用对土壤中苄嘧磺隆降解动力学特性的影响,结果表明镉的存在对苄嘧磺隆的降解有一定的抑制作用,降解半衰期(DT50)从8.52天(0×10-6镉处理)增加到11.09天(100×10-6镉处理),同时所有镉处理水稻土中的降解均符合一级反应动力学方程。Effects of Cd on the degradation dynamics of Bensulfuron-methyl in a paddy soil was studied by a series of soil incubation experiment. The results show that bensulfuron-methyl degradation is definitely inhibited in the soil treated with Cd. The DT(50) of bensulfuron-methyl is increased to 11.09 days (100×10^(-6) Cd treatment) from 8.52 days (0×10^(-6) Cd treatment). While the bensulfuron-methyl de)ll treatment.

关 键 词：苄嘧磺隆 镉 降解 土壤 

分 类 号：S481.8[农业科学—农药学]