本文是对西林吉地区兴安落叶松人工幼林化学抚育的研究结果.试验表明,所用9种除草剂中以草甘膦为好,其适宜的剂量为75～150g/亩.拉索、杀草丹、除草通、精稳杀得、阿特拉津适宜剂量除草有效,但有的药品剂量稍大即可产生药害,应慎用.2,4-D丁酯对兴安落叶松有严重药害,不宜采用.化学除草是经济、高效的除草方法,为适应该地区发展林业的需要,应扩大试验,尽快推向生产. This paper is the result of researches on chemical tending of artificial Larix gmelinii in the Xilinji region.The results showed that glyphosate was the best among the nine herbicides used, and the suitable dosage was 75 ~ 150g / , Weeding pass, fine kill, atrazine dose appropriate herbicides effective, but some drugs can produce phytotoxicity slightly larger, should be used with caution .2,4-D butyl Xingan larch serious injury , Should not be used.Chemical weeding is an economical and efficient weeding method, in order to meet the needs of the development of forestry in the region, should expand the test, as soon as possible to the production.