2.4-D丁酯与百草敌复配防除麦田杂草试验

Control Experiment of Compounding 2.4-D Butylate and Banvel on Weeds in Wheat Field

[目的]更好地防治麦田各类杂草。[方法]设计48%百草敌与72%2.4-D丁酯复配、单用48%百草敌和72%2.4-D丁酯、清水对照4个处理,研究2.4-D丁酯与百草敌复配防除麦田杂草的效果。[结果]药后15 d,2.4-D丁酯与百草敌混用对麦田杂草的株防效达59.7%,药后30 d的株防效达73.8%。药后15 d,百草敌和2.4-D丁酯单用的株防效分别为56.2%和54.7%,药后30 d的株防效分别为66.2%和69.3%。药后45 d,2.4-D丁酯与百草敌混用对问荆、节裂角茴香、薄蒴草、遏蓝菜、猪殃殃的鲜重防效分别为70.6%、71.5%、69.2%、65.3%、67.8%。2.4-D丁酯与百草敌混用的增产率最高,达19.2%。[结论]2.4-D丁酯与百草敌复配防治麦田杂草的效果很好,在大田生产中具有推广价值。

[Objective] The aim of the research was to control all kinds of weeds in wheat field better.[Method] Four treatments of compounding 48% banvel with 72% 2.4-D butylate,48% banvel,72% 2.4-D butylate and clean water（as CK） were set up to study the control effects of compounding 2.4-D butylate and banvel on weeds in wheat field.[Result] When the compound of 2.4-D butylate and banvel was sprayed for 15 d,its control effect reached 59.7% for each plant and it reached 73.8% after 30 d.When the drugs were used for 15 d,the control effects of banvel and 2.4-D butylate were 56.2% and 54.7% resp.and their control effects were 66.2% and 69.3% resp.after 30 d.When the drugs were used for 45 d,their control effects of compounding 2.4-D butylate and banvel on the fresh weight of Eqisetum arvense L.,Herba hypecoi,Lepyrodiclis holosteoides,Thlaspi arvense L.and Calium aparine were 70.6%,71.5%,69.2%,65.3% and 67.8% resp.The yield increasing rate of compounding 2.4-D butylate and banvel was highest and reached 19.2%.[Conclusion] The control effect of compounding 2.4-D butylate and banvel on weeds in wheat field was better and it had the popularization value in the field production.