氟铃·辛硫磷20%乳油在棉花上的残留与消解动态  

Residue Decline Study of 20% Hexaflumuron · phoxim EC in Cotton

作　　者：刘进玺[1] 王亚平[2] 钟红舰[1] 董小海[1] 吴绪金[1] 

机构地区：[1]河南省农业科学院 农业质量标准与检测技术研究所,河南郑州450002 [2]郑州职业技术学院,河南郑州450121

出　　处：《农药科学与管理》2013年第10期33-37,共5页Pesticide Science and Administration

摘　　要：为了评价辛硫磷在棉花上使用的安全性,建立其使用规范.于2010-2012年在杭州和商丘两地进行了氟铃·辛硫磷20％乳油在棉花上的消解动态和最终残留实验.消解动态试验结果表明：在植株和土壤中半衰期分别为0.62～0.81d和2.4～2.8d.最终残留试验表明：氟铃·辛硫磷20％乳油按300g a.i./ha和450g a.i./ha施药,虫害发生期施药3次和4次,末次施药后7、15、21d采集土壤样品和棉花样品,土壤和棉籽中辛硫磷的残留量均＜0.05mg/kg.In order to evaluate the safety and regular use of phoxim in cotton field.,field trail for 20％ Hexaflumuron·phoxim EC were conducted in cotton of Hangzhou and Shangqiu between year 2010～2012.The results from field experiment of degradation dynamic indicated that the half-lives of phoxim in cotton plant and soil are 0.62～0.81 d,2.4～2.8 d,respectively.The final residue indicated that when pest occurred sprayed 3 times and 4 times with 20％ Hexaflumuron·phoxim EC in the dosage of 300g a.i./ha and 450g a.i./ha,and made sample 7,15,21 days after the last spraying,The total residue of phoxim in cotton seed and soil were less than 0.05 mg/kg.

关 键 词：辛硫磷 棉花 消解动态 残留 

分 类 号：S481.8[农业科学—农药学] S482.3[农业科学—植物保护]