单嘧磺隆在土壤中的归趋及其残留的生物测定  

The Research of Bioassay on the Tencdency and Residue in Soil of Monosulfuron

作　　者：叶非[1] 王征[1] 

机构地区：[1]东北农业大学理学院,哈尔滨150030

出　　处：《中国农学通报》2008年第4期394-397,共4页Chinese Agricultural Science Bulletin

基　　金：黑龙江省自然科学基金项目"新型ALS酶抑制除草剂安全剂的结构优化及生物活性研究"(B200602);哈尔滨市科技创新人才研究专项资金项目"新型ALS酶抑制除草剂的安全剂创制"(2006RFXXN005);黑龙江省教育厅科学技术研究项目"新型二氮杂二环类除草剂安全剂的创制"(11521038)

摘　　要：通过生物测定方法研究了单嘧磺隆在土壤中的淋溶、吸附和残留分析。结果表明:单嘧磺隆在不同土壤中的淋溶与与吸附土壤特性有关。在土壤pH值为6.1～7.9、有机质含量相差小于1.0的条件下,粘粒含量对单嘧磺隆淋溶的最大浓度深度贡献率为98.70%,对单嘧磺隆的吸附系数贡献率为99.81%;单嘧磺隆在黑土中的残留量随着残留天数的增加而下降,在黑土中的半衰期为12.1d。The leaching, adsorption and residue analysis in the soil of monosulfuron was researched by bioassay method. The result showed that： The leaching and adsorption of Monosulfuron is decided by different characteristics soil. When the soil pH 6.1～7.9, the content of organic matter less than 1.0, the clay content on the Monosulfuron of leaching contribution to the depth of maximum concentration was 98.70%, and the adsorption coefficient contribution rate was 99.81%. Monosulfuron residues in the soil increased with the increase in the number of days residual declined, and the half life of Monosulfuron in the black soil is 12.1 days.

关 键 词：单嘧磺隆 淋溶 吸附 残留 

分 类 号：S481.8[农业科学—农药学]