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当前位置: 首页 > 文章 > 菊花田苗后除草剂品种筛选及安全性评价 杂草学报 2020 (3) 38-44
Position: Home > Articles > Efficacy and Selectivity Screening of Post-Emergence Herbicides in Chrysanthemum Fields Journal of Weed Science 2020 (3) 38-44

菊花田苗后除草剂品种筛选及安全性评价

作  者：
孙兰兰;薛飞;王佩雯;徐洪乐;苏旺苍;鲁传涛;吴仁海
单  位：
河南省农业科学院植物保护研究所/河南省农作物病虫害防治重点实验室/农业农村部华北南部作物有害生物综合治理重点实验室
关键词：
菊花;杂草防除;苗后除草剂;防效;安全性;咪唑乙烟酸;甲咪唑烟酸
摘  要：
通过室内外试验评估24种苗后除草剂对菊花的安全性和除草效果。盆栽试验结果表明,24种苗后除草剂单剂处理中咪唑乙烟酸、硝磺草酮甲咪唑烟酸、草除灵、扑草净等对菊花相对安全,这几种药剂不同剂量下对菊花的药害级别均低于或等于2级。田间试验测定甲咪唑烟酸、咪唑乙烟酸对菊花的安全性及杂草防除效果表明,67.5、90.0 g/hm~2 5%咪唑乙烟酸AS对各种杂草的防效较好,但药后26 d对菊花的生长抑制率为30%左右,药害严重。108 g/hm~2 24%甲咪唑烟酸AS处理条件下,对菊花生长无显著抑制作用,对反枝苋、牛筋草、马泡瓜等杂草均具有较好的防治效果,对马齿苋、醴肠、稗草、马唐、藜等杂草具有中等防效。表明108 g/hm~2 24%甲咪唑烟酸AS是较为理想的菊花田苗后除草剂。
译  名：
Efficacy and Selectivity Screening of Post-Emergence Herbicides in Chrysanthemum Fields
作  者：
SUN Lan-lan;XUE Fei;WANG Pei-wen;XU Hong-le;SU Wang-cang;LU Chuan-tao;WU Ren-hai;Institute of Plant Protection,He'nan Academy of Agricultural Sciences/He'nan Key Laboratory of Crop Pest Control/IPM Key Laboratory in Southern Part of North China,Ministry of Agriculture and Rural Affairs;
关键词：
Chrysanthemum;;weed control;;post-emergence herbicide;;control effect;;safety
摘  要：
The efficacy and selectivity of 24 pots-emergence herbicides in Chrysanthemum was evaluated by in-situ and laboratory tests. A pot experiment showed that the single pots-emergence herbicides,imazethapyr,imazapic,thifensulfuron,benazolin-ethyl,and prometryne were relatively safe to Chrysanthemum,inflicting damage levels lower than grade 2 at different doses. Field experiments were conducted to determine the selectivity and weed control efficacy of imazapic and imazethapyr on Chrysanthemum. Imazethapyr 5% AS provided good weed control at 67.5～90 g/hm~2 but inhibited Chrysanthemum growth by up to 30%,a damage level considered as serious. Methimazole 24% AS at 108 g/hm~2 had no significant inhibitory effect on Chrysanthemum growth,but was effective on Amaranthus retroflexus,Achyranthes sinense and Cucumis melo agrestis,and provided moderate control of Portulaca oleracea,Eclipta prostrata,Echinochloa crus-galli,Digitaria sanguinalis and Chenopodium album,making it a suitable post-emergence herbicide for weed control in Chrysanthemum fields.

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