作　　者： ; ; ;

机构地区： 仲恺农业技术学院农业与园林学院植保系

出　　处： 《仲恺农业技术学院学报》 2003年第4期42-45,共4页

摘　　要： 就2,4-D丁酯和氟草烟对草坪假芫荽(Hydrocotylesibthorpioides)的毒杀活性和田间药效进行了研究,结果表明,用药处理后7d,2,4-D丁酯和氟草烟对假芫荽的EC50分别为249 42和106 19mg/L;处理后14d,两者的EC50分别为150 95和76 34mg/L;处理后30d,0 15、0 12和0 09ml/m2的2,4-D丁酯对假芫荽的防治效果分别为97 90%、93 79%和82 65%;0 09、0 075和0 06ml/m2的氟草烟对假芫荽的防治效果分别为96 83%,90 85%和79 05%. Bio-activities of 2,4-D butylate and flruoxypyr against Hydrocotyle sibthorpioides were investigated in the paper. EC_(50) of 2,4-D butylater and flruoxypy were 249.42 and 106.19 mg/L 7 d after treatment, and were 150.95 and 76.34 mg/L 14 d after treatment, respectively. 30 d after treatment, rates of control effect of 2,4-D butylater against H. sibthorpioides were 97.90,93.79 and 82.65% with the concentration of 0.15, 0.12 and 0.09 ml/m^2, respectively. Rates of control effect of flruoxypyr were 96.83, 90.85 and 79.05% with the concentration of 0.09, 0.075 and 0.06 ml/m^2, respectively.

关 键 词： 除草剂 丁酯 氟草烟 草坪杂草 假芫荽 毒杀活性 田间药效试验

领　　域： [农业科学] [农业科学] [农业科学]