熊忠华，李娟，石绪根，等.鼠氟草酯与双草瞇混剂防治稻田禾本科杂草田间药效试验[J].生物灾害科2017,40(1):1-7.氧氟草酯与双草醛混剂防治稻田禾本科杂草田间药效试验熊忠华I,李娟2,石绪根匚张前锋I(1..江西农业大学农学院，江西南昌330045；2.江西农业大学国土资源与环境学院，江西南昌330045)摘要：为探明孰氟草酯•双草酬混用对稻山杂草的防治效果、适宜用量及其对水稻的安全性，进行•了出间药效试验。结果表明，氛氟草酯与双草醯混剂120ga.i./hm2以上剂量对水稻移栽FT1稗草、千金子防效突出，H以氛氟草酯+双草醛(160+40)ga.i./hm2处理的效果最佳；药后30d其对稗草、千金子和稗草与千金子总体的株防效分别为100.00%、96.26%和97.78%。虽然訊氟草酯与双草瞇混用造成訊氟草酯对千金子的株防效显著下降，但二者混用未明显影响録氟草艇对稗草的防效，且对千金子防效较双草隧单剂显著提奇。此外，氤氟草酯与双草瞇混剂处理增产效果显著，并对水稻安全。关键词：獗氟草酯；双草醸；混用；移栽水稻；禾本科朵草；防效：安全性ControlEfficacyofMixtureofCyhalofop-butylandBispyribac-sodiumAgentAgainstGramineousWeedsXIONGZhong-hua1,LIJuan2,SHIXu-gen1*,ZHANGQian-feng1(1.CollegeofAgronomy,JiangxiAgriculturalUniversity,Nanchang330045,China；2.CollegeofLandResourceandEnvironment,JiangxiAgriculturalUniversity,Nanchang330045,China)Abstract：Inordertoinvestigatethecontroleffectsandappropriatedosageofcyhalofop-butylandbispyribac-sodiummixtureonpaddyweeds,andthesafetyonriceaswell,thefieldefficacytrialswerecarriedout.Theresultsshowedthatwhenthecyhalofop-butylandbispyribac-sodiummixturewasatadoseofmorethan120ga.i./hm^,ithadaprominentcontroleffectonEchinochloacrus^alliandLeptochloachinensisintransplantedricefields,andthebesttreatmenteffectresultedfrom(160+40)ga.i./hm2ofcyhalofop-butyl+bispyribac-sodiummixture.After30dtreatment,plantcontroleffectsofthemixtureonEchinochloacrus^alli,厶eptochloachinensisandthetotalofEchinochloacrusgalliandLeptochloachinensiswere100.00%,96.26%and97.78%.Althoughthemixtureofcyhalofop-butylandbispyribac-sodiummixtureresultedinasignificantdecreaseintheplantcontroleffectofcyhalofop-butylsolelyagainstLeptochloachinensis.themix-updidnotsignificantlyaffectthecontroleffectofcyhalofop-butylonEchinochloacrusgalli,andthemixturehadabettercontroleffectagainstLeptochloachinensisthanthatofthesingleagentofbispyribac-sodium.Inaddition,thecyhalofop-butylandbispyribac-sodiummixtureimprovedtheyieldsignificantly,andhadnodamagetoricesafety.Keywords:bispyribac-sodium;cyhalofop-butyl;mixture;ricetransplanting;gramineousweeds;controlefficacy;safety稻HI杂草是当前威胁水稻生产的一大类生物灾害，对造成严重减产甚至颗粒无收，而有效控制农m草害已成为水稻高产稳产的关键技术之一山役过去60多年，化学除草因防效显著、省时省力，已成为中图分类号:文献标志码：A文章编号:全球现代农业生产的重要组成部分⑶。............................................................................................为了明确氧氟草酯与双草瞇混用对江西稻区杂草的控制效果、适宜用量以及对供试水稻的安全性，于2015年7—11月进行了氤氟草酯与双草醯混用防除水稻移栽皿杂草皿间药效试验。1材料与方法1.1试验对象、作物和品种的选择以稗草(Echlnochloacmsgalli)和「金子(.Leptochloachinensis)为供试靶标，试验时稗草2~7叶期、千金子2〜5叶期。试验作物为水稻，品种为深两优5814,一季晚稻，人工栽种。1.2试验地点及作物栽培、环境条件试验在江西省弋阳县旭光乡张湾分场稻田进行。试验地为典型的稻作田，田间地势平坦、肥力均匀、排灌方便。土壤为粘壤土，pH值约为6.1,有机质含量为1.8%,肥水管理等措施良好一致。2结果与分析2.1对水稻的安全性供试药剂试验剂量下对水...