氯氟吡啶酯与敌稗茎叶处理对水稻产量及田间杂草防治效果的影响  

Effects of Mixed Stem and Leaf Treatment with Florpyrauxifen and Propanil on Rice Yield and Weeds Control in Rice Fields

作　　者：刘洋[1] 赵秀梅[1] 王立达[1] 李青超[1] 刘悦 兰英 韩业辉[1] 刘颖[2] LIU Yang;ZHAO Xiumei;WANG Lida;LI Qingchao;LIU Yue;LAN Ying;HAN Yehui;LIU Ying(Qiqihar Branch,Heilongjiang Academy of Agricultural Sciences,Qiqihar 161006,China;Qiqihar Agricultural Technology Extension Center,Qiqihar 161006,China)

机构地区：[1]黑龙江省农业科学院齐齐哈尔分院,黑龙江齐齐哈尔161006 [2]齐齐哈尔市农业技术推广中心,黑龙江齐齐哈尔161006

出　　处：《黑龙江农业科学》2023年第11期67-71,共5页Heilongjiang Agricultural Sciences

基　　金：中国科学院战略性先导科技专项子课题(XDA281-30504);黑龙江省省属科研院所科研业务费项目(CZKYF2023-1-B012);齐齐哈尔市科学技术计划重点项目(ZDGG-202207)。

摘　　要：为了明确氯氟吡啶酯+敌稗桶混茎叶处理对水稻的安全性及对杂草的防治效果,2022年进行了田间小区探索试验。结果表明,移栽稻田杂草2~4叶期,氯氟吡啶酯(有效成分用量20.0~50.0 g·hm^(-2))+敌稗(有效成分用量1600.0~4000.0 g·hm^(-2))桶混在试验剂量范围内安全性较好;氯氟吡啶酯(有效成分用量25.0~50.0 g·hm^(-2))+敌稗(有效成分用量2000.0~4000.0 g·hm^(-2))桶混,对移栽水稻田稻稗、野慈菇的防治效果均在95%以上,可以有效防治移栽水稻田禾本科及阔叶杂草,尤其是可以有效防治当地难防抗性杂草稻稗、野慈茹。适宜施药剂量为氯氟吡啶酯有效成分用量25.0~30.0 g·hm^(-2)+敌稗有效成分用量2000.0~3000.0 g·hm^(-2)桶混,杂草基数或叶龄小的地块用低量,杂草基数或叶龄大的地块用高量。In order to confirm the safety to rice and control effect to weeds on florpyrauxifen and propanil barrels mixed,exploratory experiments of field plots was done in 2022.The results showed that,2-4 leaf stage of transplanting weeds in rice fields,florpyrauxifen(active ingredients dosage 20.0-50.0 g·ha^(-1))and propanil(active ingredients dosage 1600.0-4000.0 g·ha^(-1))barrels mixed,security was very good in the dose range of test.Florpyrauxifen(active ingredients dosage 25.0-50.0 g·ha^(-1))and propanil(active ingredients dosage 2000.0-4000.0 g·ha^(-1))barrels mixed.The control effect was above 95%to Echinochloa oryzicola Vasing and Sagittaria trifolia L.in transplanting rice fields.It can effectively control Poaceae and broadleaf weeds in transplanted rice fields,especially effective in controlling locally difficult to control resistant weeds such as Echinochloa oryzicola Vasing.,Sagittaria trifolia L.The suitable dosage was florpyrauxifen(active ingredients dosage 25.0-30.0 g·ha^(-1))and propanil(active ingredients dosage 2000.0-3000.0 g·ha^(-1))barrels mixed,low usage for plots with small weed base or leaf age,high usage for plots with large weed base or leaf age.

关 键 词：氯氟吡啶酯 敌稗 桶混 移栽水稻 防治效果 

分 类 号：S451.21[农业科学—植物保护]