异丙甲草胺在大豆田土壤中的残留动态  

Study on Residual Dymanics of Metolachlor in Soybean Field Soil

作　　者：张浩[1] 刘伊玲[1] 徐威 

机构地区：[1]吉林农业大学农商学院

出　　处：《吉林农业大学学报》1997年第3期68-71,共4页Journal of Jilin Agricultural University

摘　　要：用气相色谱法测定了异丙甲草胺在大豆田土壤中的残留动态及残留量，建立了该药剂在土壤中的残留分析方法。研究结果表明，异丙甲草胺在土壤中的消解速度因气候及土壤而异。山东试验点降解较快，半衰期为１０～１２ｄ，吉林试验点降解较慢，半衰期为１６～１７ｄ。在施用７２％异丙甲草胺乳油２５０５ｍＬ／ｈｍ２和４９９５ｍＬ／ｈｍ２的条件下，收获时土壤中均未检出异丙甲草胺。Residue and degration of metolachlor in soybean field soil were studied The results showed that the degration of metolachlor in Shandong was faster than in Jilin The half life was 10～12 days in Shandong, and that 16～17 days in Jilin, with the recommended dosage and timing of application The terminal residues in soil were less than the detectable limits (0005　mg/kg)

关 键 词：异丙甲草胺 半衰期 土壤 残留量 大豆田 

分 类 号：S482.4[农业科学—农药学] S451.224[农业科学—植物保护]