幼林地除草应该在杂草萌芽前进行化学控草 ,一者操作简便 ,二者用药量少 ,可避免幼树药害 ;三者成本低 ,效果好 ,有效期长 ,幼树免受草害 ,且经济效益高 ,省工 80 %以上 ,节资 50 %以上。现在 ,幼林化学控草时间已过 ,为害杂草已经生长茂盛 ,正在严重为害幼树生长 ,为解决幼树 Young weeding should be chemical weed control before weed germination, one is easy to operate, the two dosage less, to avoid young tree phytotoxicity; three low cost, good effect, long period of validity, young trees from grass damage, And high economic efficiency, more than 80% of provincial workers, more than 50% festival funding. Now, the young forest chemical control of grass has passed, weeds have been flourishing growth, is seriously harming the growth of young trees, in order to solve the young tree