四川地区水稻旱直播田除草剂筛选试验  

Screening Test of Herbicides in Dry Direct-seeding Rice Field of Sichuan

作　　者：伏荣桃[1,2] 王剑[1,2] 卢代华[1,2] 陈诚[1,2] 林乾[3] 龚学书[1,2] 

机构地区：[1]四川省农业科学院植物保护研究所,成都610066 [2]农业部西南作物有害生物综合治理重点实验室,成都610066 [3]西南大学植物保护学院,重庆400715

出　　处：《农学学报》2017年第8期20-24,共5页Journal of Agriculture

基　　金：四川省农业科学院青年基金项目"水稻稻曲病预测预报技术研究"(2015JSCX-017);四川省科技厅农业公益项目"主要粮经作物农残综合防控关键技术研究与示范"(2015NZ0028)

摘　　要：为了筛选适宜四川地区水稻旱直播田有效除草剂,本试验选用了噁唑酰草胺、氯氟吡氧乙酸、氟吡磺隆、双唑草腈、苄嘧磺隆、丁草胺和丁·苄复配剂进行防除杂草的筛选试验,通过调查旱直播田杂草种类和数量,研究这7种除草剂的除草效果。结果表明:10%噁唑酰草胺乳油+20%氯氟吡氧乙酸乳油、1.8%双唑草腈水分散剂和35%丁·苄复配可湿性粉剂防除禾本科及阔叶类杂草总防效较好,30天总杂草的株防效和鲜重防效都达91%以上,并且对水稻苗安全性好,可在四川地区水稻旱直播田推广应用。因此,10%噁唑酰草胺乳油+20%氯氟吡氧乙酸乳油、1.8%双唑草腈水分散剂和35%丁·苄复配可湿性粉剂3种除草剂在四川水稻旱直播田有较好的推广应用前景。To screen effective herbicides which are suitable for dry direct-seeding rice field in Sichuan, thisexperiment selected metamifop, fluroxypyr-meptyl, flucetosulfuron, pyraclonil, bensulfuron, butachlor andbenzyl-butyl to screen effective herbicides, and through the investigation of weed species and quantity to studythe weed control effect of the seven herbicides. The results showed that 10% metamifop＋ 20% fluroxypyr-meptyl EC, 1.8% pyraclonil SP and 35% benzyl-butyl WP had a good control effect on the gramineous weedsand broadleaf weeds. At 30 days, the controlling effect reached above 91% for each plant and fresh weight.Furthermore, they had better safety for rice seedling, and could be popularized and applied in dry direct-seeding rice field in Sichuan. Therefore, 10% metamifop＋ 20% fluroxypyr-meptyl EC, 1.8% pyraclonil SP and 35% benzyl-butyl WP have wide prospect in dry direct-seeding rice field in Sichuan.

关 键 词：水稻旱直播田 除草剂筛选 禾本科杂草 阔叶类杂草 防效 

分 类 号：S482.4[农业科学—农药学]