60%氧氟·丁噻隆WG防除甘蔗田杂草药效试验  

Effects of Tebuthiuron ·Oxyfluorfen 60% WG on Controlling Weeds in Sugarcane Field

作　　者：易芬远 赖开平 韦茂春 马就庆 方峰 

机构地区：[1]广西壮族自治区化工研究院,南宁530001

出　　处：《农药》2015年第11期855-858,共4页Agrochemicals

基　　金：桂科转(14125004-31);桂科攻(14122005-31);桂科合(14125007-2-15);20135227

摘　　要：【目的】探讨60％氧氟·丁噻隆WG防除甘蔗田杂草的可行性。【方法】采用等效线法评价丁噻隆与乙氧氟草醚对马唐和反枝苋的联合作用。采用芽前封闭试验测定60％氧氟·丁噻隆WG对杂草防效及甘蔗安全性。【结果】丁噻隆与乙氧氟草醚按有效成分5：1比例混配，对马唐和反枝苋的协同增效作用明显。药后60d，60％氧氟·丁噻隆WG（600-1200ga．i/hm2）对杂草防效大于82％，对甘蔗安全。【结论】60％氧氟·丁噻隆WG防除甘蔗田杂草具有防效好、杀草谱广、对甘蔗安全等特点。[Aims] The study aims to investigate the feasibility oftebuthiuron oxyfluorfen 60% WG to control weeds in sugarcane field. [Methods] The synergism oftebuthiuron and oxyfluorfen on Digitaria sanguinalis （L.） Scop. and A maranthus retroflexus L. was evaluated by isoboles. The control effects and safety of soil-applied herbicide to sugarcane were studied. [Results] The results showed that significant synergism was observed in the mixture of tebuthiuron and oxyfluorfen on D. sanguinalis （L.） Scop. and A. retroflexus L., with the proportion ration of 5：1 showing the highest synergism. The results of field experiment showed that the control efficacy of tebuthiuron oxyfluorfen 60% WG in dose range of 600-1 200 g a.i./ha was more than 82% after 60 d of spraying, and they were safety to sugarcane. [Conclusions] Tebuthiuron-oxyfluorfen 60% WG has advantages of high efficacy, broad-spectrum and safety.

关 键 词：60%氧氟·丁噻隆WG 甘蔗 杂草 防效 

分 类 号：S451.223[农业科学—植物保护]