【摘要】 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。40g·L^-1烟嘧磺隆可分散油悬浮剂、480g·L^-1麦草畏水剂、480g·L^-1灭草松水剂不能有效防除铁苋菜。更多还原

【Abstract】 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.40g·L^-1 nicosulfuron OD,480g·L^-1 dicamba AS and 480g·L^-1 bentazone AS could not effectively control A.australis.更多还原