越冬之星苜蓿苗期除草剂筛选及杂草防除

Herbicides Selection and Weeds Control for Seedling of Winter Star Alfalfa

[目的]筛选出对越冬之星苜蓿苗期生长安全的除草剂,并确定其防除效果,为苜蓿田杂草的防治提供依据。[方法]选用9种除草剂对苗期越冬之星苜蓿田进行除草剂筛选及杂草防除试验。[结果]不同除草剂对其生长发育、防除效果及增产效果都有一定影响,影响程度因除草剂种类与剂量不同存在差异,金普施特的综合表现最佳,能够同时防除大部分阔叶杂草和单子叶杂草。[结论]金普施特可在越冬之星苜蓿田大面积生产中推广应用。

[Objective] The aim was to choose safe herbicides for the growth of Winter Star Alfalfa during seedling stage,and determine their effectiveness of control to provide a basis for weeds control of Winter Star Alfalfa.[Method] Nine herbicides were chosen for carrying out weeds control experiment for seedling of Winter Star Alfalfa during seedling stage.[Result] It indicated that there were certain effects for different herbicides on growing developments and effectiveness of control and production increase according to different herbicide types and doses.Imazethapyr showed the best effect,which could both control broad-leaved and monocotyledonous weeds.[Conclusion] Imazethapyr could be selected to use in large areas.