不同茎叶处理除草剂对铁苋菜的防除效果OA
Control Efficacy of Different Post-Emergence Herbicides Against Acalypha australis
为了筛选对铁苋菜防除效果好的除草剂,采用盆栽试验比较了 11种茎叶处理除草剂对铁苋菜的防效.结果表明,本研究条件下25％氟磺胺草醚可溶液剂、20％氯氟吡氧乙酸乳油、38％莠去津悬浮剂对2～3叶期铁苋菜的防效为100％,对6叶期铁苋菜鲜重防效在93％以上.25％辛酰溴苯腈乳油对2～3叶期的铁苋菜防效为100％,对6叶期铁苋菜防效差.10％硝磺草酮可分散油悬浮剂、30％苯唑草酮悬浮剂、8％环磺酮可分散油悬浮剂、84％氯酯磺草胺水分散粒剂对2～3叶期铁苋菜有很好的抑制作用,鲜重防效90％以上,对6叶期铁苋菜防治效果差.40 g·L-1烟嘧磺隆可分散油悬浮剂、480 g·L-1麦草畏水剂、480g·L-1灭草松水剂不能有效防除铁苋菜.
In order to screen the suitable herbicides for control Acalypha australis,the efficacy of 11 post-emergence herbicides were compared by pot experiment.The results showed that,at the doses set in this experiment,25％fomesafen AS,20％fluroxypyr EC and 38％atrazine SC achieved 100％control efficacy against A.australis at 2-leaves-3-leaves,their fresh weight control efficacy against A.australis at the 6-leaves exceeded 93％.The 25％bromoxynil octanoate EC also reached 100％control efficacy against A.australis at 2-leaves-3-leaves,but exhibited poor control efficacy against the 6-leaves weeds.In addition,10％mesotrione OD,30％topramezone SC,8％tembotrione OD and 84％cloransulam-methyl WG exerted a good inhibitory effect on A.australis at 2-leaves-3-leaves,with the fresh weight control efficacy higher than 90％,while their control efficacy against the 6-leaves weeds were unsatisfactory.40 g·L-1 nicosulfuron OD,480 g·L-1 dicamba AS and 480g·L-1 bentazone AS could not effectively control A.australis.
王宇;郭玉莲;罗婵;丛克强;郭小桐
黑龙江省农业科学院植物保护研究所,黑龙江哈尔滨 150086黑龙江省农业科学院植物保护研究所,黑龙江哈尔滨 150086黑龙江省农业科学院植物保护研究所,黑龙江哈尔滨 150086黑龙江省农业科学院植物保护研究所,黑龙江哈尔滨 150086黑龙江省农业科学院植物保护研究所,黑龙江哈尔滨 150086
铁苋菜除草剂防除效果
Acalypha australisherbicidescontrol efficacy
《黑龙江农业科学》 2026 (5)
32-37,6
黑龙江省农业科技创新跨越工程-农业关键技术科技创新重点攻关项目(CX23GG14).
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