乙氧磺隆防除水稻直播田鸭舌草和莎草的效果  

Effects of Ethoxysulfuron for Control of Monochoria vaginalis and Cyperus difformis in Direct-seeded Rice Field

作　　者：朱文达[1] 李玮 吴红渠[1] 陈耕[3] 

机构地区：[1]湖北省农业科学院,武汉430064 [2]浙江泰达作物科技有限公司,杭州310013 [3]四川省西昌市农业局,四川西昌615000

出　　处：《湖北农业科学》2012年第8期1577-1579,共3页Hubei Agricultural Sciences

基　　金：国家"十一五"科技支撑计划项目(2006BAD08A09)

摘　　要：试验研究15%乙氧磺隆WG防除水稻直播田鸭舌草[Monochoria vaginalis(Burm.F.)]和异型莎草(Cyperus difformis L.)的效果,并测定杂草防除对田间杂草氮、磷、钾、水分吸收及水稻产量的影响。结果表明,15%乙氧磺隆WG 11.25～31.50 g(a.i)/hm2对直播稻田鸭舌草的防效为90.31%～100.00%,对异型莎草的防效为89.24%～100.00%。施用15%乙氧磺隆WG能有效降低杂草对氮、磷、钾和水分的吸收,改善田间的光照和水肥条件,水稻增产效果显著。Trials were conducted to evaluate the effects of 15% ethoxysulfuron WG for control of Monochoria vaginalis（Burm.F.） and Cyperus difformis L.,as well as the absorption of nitrogen,phosphorus,kalium,moisture and crop yield.The results showed that 15% ethoxysulfuron WG at the dose of 11.25～31.5 g/hm2 had good control of the main weeds in direct-seeded rice field.The control effect against M.vaginalis was 90.31%～100.00%,and against C.difformis was 89.24%～100.00%.The application of 15% ethoxysulfuron WG significantly reduced the weeds absorption of nutrient and water,resulting in prominent yield enhancing.

关 键 词：乙氧磺隆 杂草防效 养分 水分 产量 

分 类 号：S451.21[农业科学—植物保护]