二甲戊灵、扑草净与丙炔氟草胺的配比筛选及在油莎豆田的应用效果  

Proportion screening and control effect of the combined pendimethalin,prometryn and flumioxazin against weeds in tigernut field

作　　者：王义生[1] 刘佳遥 黄淑敏[2] 白雪 贾娇[1] 牟忠生[1] 苏前富[1] WANG Yisheng;LIU Jiayao;HUANG Shumin;BAI Xue;JIA Jiao;MU Zhongsheng;SU Qianfu(Jilin Academy of Agricultural Sciences,Key Laboratory of Integrated Pest Management on Crops in Northeast,Ministry of Agriculture and Rural Affairs,Gongzhuling 136100,China;Jingyu County Agricultural Technology Promotion Center of Jilin Province,Baishan 135200,China)

机构地区：[1]吉林省农业科学院,农业农村部东北作物有害生物综合治理重点实验室,公主岭136100 [2]吉林省靖宇县农业技术推广中心,白山135200

出　　处：《植物保护》2024年第2期350-355,共6页Plant Protection

基　　金：吉林省重大科技专项(192480NY010366768)。

摘　　要：为探索和论证二甲戊灵、扑草净与丙炔氟草胺三者复配的合理性及三者复配制剂对油莎豆Cyperus esculentus var.sativus田杂草的防效和对油莎豆的安全性,本试验依据除草剂室内活性测定标准并借鉴除草剂防治大豆田杂草田间药效试验准则,进行了一系列试验。结果表明,二甲戊灵、扑草净与丙炔氟草胺三者联合作用对稗草Echinochloa crus-galli、苘麻Abutilon theophrasti、藜Chenopodium album 3种杂草表现为相加或增效作用,当三者混配比例为30∶30∶1时联合作用为增效,为最佳比例。此比例下的36.6%二甲戊·扑·丙炔SC对油莎豆田一年生杂草有较好的防效,试验有效剂量在1647.0~1921.0 g/hm^(2)范围内,对油莎豆出苗、生长较安全;施药后40 d对一年生杂草的防效为91.3%~97.7%。由此可见,二甲戊灵、扑草净与丙炔氟草胺三者联合研制新药剂具有可行性,能扩大杀草谱和应用范围,可用于油莎豆田杂草防控,适宜用量1647.0~1921.0 g/hm^(2)。In order to evaluate the rationality and the control effect of pendimethalin,prometryn and flumioxazin in combination on weeds and safety to Cyperus esculentus var.sativus,a series of trials were conducted based on the pesticides guidelines for laboratory bioactivity test and guidelines for the efficacy trials of herbicides against weeds in soybean field.It was found that the combined effect of pendimethalin,prometryn and flumioxazin presented to be additive or synergistic against three weeds,Echinochloa crus-galli,Abutilon theophrasti and Chenopodium album.When the mixing ratio of the three was 30∶30∶1,the combined effect was synergistic.At this ratio,pendimethalin·prometryn·flumioxazin 36.6%SC had good control effect on annual weeds in C.esculentus var.sativus field,and the test dose was within the range of 1647.0-1921.0 g/hm^(2),which was safer than the others for the emergence and growth of C.esculentus var.sativus.The control efficacy on annual weeds 40 days after application was 91.3%-97.7%.Thus,it is feasible to research and develop new herbicides by the combination of pendimethalin,prometryn and flumioxazin,which could expand the herbicidal spectrum and the application scope,and could be used for weed control in C.esculentus var.sativus field at the recommended dosage of 1647.0-1921.0 g/hm^(2).

关 键 词：杂草防除 油莎豆 二甲戊灵 扑草净 丙炔氟草胺 

分 类 号：S482.4[农业科学—农药学]