松香助剂对烟嘧磺隆防除夏玉米田杂草的减量增效作用  

The Influence of Reduction Doesage and Enhancement Effect of Rosin Adjuvants on Nicosulfuron against Summer Corn Field Weeds

作　　者：杨娟[1] 臧会巧 乔欣 张利辉[1] 董金皋[1] 

机构地区：[1]河北农业大学河北省植物生理与分子病理学重点实验室,河北保定071001 [2]威县林业局,河北邢台054700

出　　处：《农药》2018年第3期225-227,共3页Agrochemicals

基　　金：国家现代农业(玉米)产业技术体系(CARS-02);研究生创新项目(CXZZBS2017062)

摘　　要：[目的]研究松香助剂对烟嘧磺隆防除夏玉米田常见杂草的减量增效作用。[方法]通过温室盆栽法结合田间试验,定期调查的方法评价了其对烟嘧磺隆防除马唐、狗尾草、反枝苋、马齿苋效果的影响。[结果]40 g/L烟嘧磺隆油悬浮剂使用量分别为60、30 g a.i./hm^2(30 g a.i./hm^2+松香助剂)时,施药后14 d,对杂草的株防效分别达85.38%、60.76%、75.43%;施药后28 d,对杂草的株防效和鲜重防效分别为83.42%、47.59%、68.45%和80.00%、54.16%、78.83%,30 g a.i./hm^2+松香助剂处理14 d株防效和28 d鲜重防效均优于30 g a.i./hm^2处理的防效。[结论]松香助剂对烟嘧磺隆防除夏玉米田杂草具有减量增效作用且对玉米安全。[Aims] This paper aims to study the reduction doesage and enhancement effect of rosin on nicosulfuron. [Methods] Pot-culture in the greenhouse and field trials were carried out. The reduction and enhancement effect of rosin on nicosulfuron which controlled Digitaria sanguinalis L, Setaria viridis L., A maranthus retroflexus L., Portulaca oleraceaL, was evaluated by regular survey. [Results] When the dose of nicosulfuron 40 g/L of was 60, 30 g a.i./ha and 30 g a.i./ha＋rosin, the control efficacy on the number of weeds was 85.38, 60.76 and 75.43% after 14 d, respectively. Moreover, the efficacy on the number and fresh weight of weeds were 83.42, 47.59, 68.45% and 80.00, 54.16, 78.83% after 28 d, respectively. The control efficacy on the number after 14 days and fresh weight after 28 days of weeds by 30 g a.i. /ha＋rosin were higher than that of 30 g a.i./ha nicosulfuron. [Conclusions] Rosin adjuvant has reduction and enhancement effect on nicosulfuron, which plays an important role in controlling weeds in summer corn field.

关 键 词：松香 烟嘧磺隆 减量增效 杂草 

分 类 号：S482.4[农业科学—农药学]