38%丙草胺·草酮微乳剂对水稻田主要杂草的防除及田间养分的影响  

Effect on Main Weed Control of Rice Field and Nutrient by 38%Microemulsion Mixed Pretilachlor and Oxadizon

作　　者：涂爱萍[1] 李林[2] 安斌[1] 

机构地区：[1]湖北生物科技职业学院,武汉430070 [2]湖北省农业科学院植保土肥研究所,武汉430064

出　　处：《湖北农业科学》2015年第12期2907-2909,共3页Hubei Agricultural Sciences

基　　金：国家"十一五"科技支撑计划项目(2006BAD08A09)

摘　　要：研究了38%丙草胺·噁草酮微乳剂对水稻移栽田稗草（Echinochloa crusgalli）、异型莎草（Cyperus difformis）、鸭舌草（Monochoria vaginalis）等的防除效果,并测定了该除草剂对杂草氮、磷、钾和水分吸收的影响以及对水稻产量的影响。结果表明,38%丙草胺·噁草酮微乳剂对水稻移栽田的主要杂草具有良好的防治效果,有效成分用量为513-1 140 g/hm^2的38%丙草胺·噁草酮微乳剂综合密度防效和综合鲜重防效分别为89.93%-98.90%、90.52%-98.66%。38%丙草胺·噁草酮微乳剂施用后,减少了杂草对田间养分和水分的吸收,有效改善了作物的光照和水肥条件,水稻增产效果显著。Control effect of 38% microemulsion mixed with pretilachlor and oxadizon were conducted on controlling Echinochloa crusgalli,Cyperus difformis,Monochoria vaginalis etc in transplanted rice field. And the effect of Weeds herbicide to nitrogen, phosphorus, potassium and water absorption and effects on rice yield were determined. The results indicated that the 38% microemulsion mixed with pretilachlor and oxadizon had a good control efficacy against the main weeds in transplanted rice field. The overall density control effect and overall fresh weight control effect of pretilachlor and oxadizon at513 -1 140 g / hm^2 applied were 89.93% -98.90% and 90.52% -98.66% respectively. The application of 38% microemulsion mixed with pretilachlor and oxadizon reduced the amounts of nutrient and moisture abosorded by weeds and significantly improved the light, water and fertilizer conditions of crop and dramatically increased tice yield.

关 键 词：丙草胺·噁草酮 杂草防效 养分 湿度 水稻产量 

分 类 号：S451.21[农业科学—植物保护]