喷雾助剂对烟嘧磺隆药液特性及减施除草活性的调节作用  

Effects of Adjuvants on the Solution Characteristics and Dose-reduced Herbicidal Activity of Nicosulfuron

作　　者：韩玉军[1] 王月超 孙莹 高红 陶波[1] 戴长春[1] 马红[1] HAN Yujun;WANG Yuechao;SUN Ying;GAO Hong;TAO Bo;DAI Changchun;MA Hong(College of Plant Protection,Northeast Agricultural University,Harbin 150030,China;Crop Resources Institute of Heilongjiang Academy of Agricultural Sciences,Harbin 150086,China)

机构地区：[1]东北农业大学植物保护学院,哈尔滨150030 [2]黑龙江省农业科学院作物资源研究所,哈尔滨150086

出　　处：《中国生物防治学报》2023年第4期842-850,共9页Chinese Journal of Biological Control

基　　金：国家自然科学基金(32072434);黑龙江省自然科学基金(LH2023C009);东北农业大学“学术骨干”项目(19XG02)。

摘　　要：为了评价喷雾助剂对除草剂减量施用下的增效调节作用,采用仪器分析和田间试验的方法研究了7种助剂对烟嘧磺隆的药液特性和除草活性的调节作用。结果表明,7种助剂均能显著降低药液的表面张力、接触角,增加药液铺展直径。杰效利对药液表面张力和接触角的降低作用和药液铺展直径的增加作用好于其他助剂,添加杰效利0.05%~0.2%后烟嘧磺隆药液的表面张力降低了41.52%~47.69%,接触角降低了49.87%~66.23%,铺展直径增加了59.94%~150.13%;渗透者、倍创和迈丝可以显著延长液滴干燥时间,与未添加助剂相比干燥时间分别增加了3.84%~36.69%、17.20%~23.57%、3.02%~18.01%;田间试验结果表明,渗透者和迈丝对烟嘧磺隆的增效作用好于其他助剂,能够降低烟嘧磺隆使用量达25%~40%,可以作为烟嘧磺隆的有效助剂选择使用。The effects of seven adjuvants on the solution characteristics and herbicidal activity of nicosulfuron were investigated through laboratory analyses and field trials for the synergistic effect of adjuvants on herbicide in the dose-reduced application.The results showed that the seven adjuvants significantly reduced the surface tension and contact angle and expanded the spread of pesticide droplet.Among the seven adjuvants,Jiexiaoli had higher reduction of surface tension and contact angle and expansion of spread of the droplets than the other adjuvants.With addition of Jiexiaoli 0.05%―0.2%,the surface tension and contact angle of nicosulfuron droplets were reduced by 41.52%―47.69%and 49.87%―66.23%,respectively,and the spread of the droplets was increased by 59.94%―150.13%.In contrast,addition of Shentouzhe,Beichuang and Maisi prolonged the drying time of the droplets significantly by 3.84%―36.69%,17.20%―23.57%and 3.02%―18.01%,respectively,over that of the control droplets.The results of field trials showed that Maisi and Shentouzhe had better synergistic effects on nicosulfuron than the other adjuvants,reducing the application dose of nicosulfuron by 25%―40%.Maisi and Shentouzhe can be applied as effective adjuvants with nicosulfuron.

关 键 词：减量施用 烟嘧磺隆 喷雾助剂 药液特性 增效作用 

分 类 号：S481.9[农业科学—农药学]