杂草是林木育苗的大敌,种类多,数量大,人工除草费工费时,费成本。我县年育苗面积16.7ha,其中松杉类育苗面积达90%以上,在育苗成本中,人工除草用工占总用工的70～80%以上,占总成本的60～70%。近几年来,我县在推行除草醚和氟乐灵除草剂用于苗圃的基础上,乙氧氟草醚在松、杉类苗圃中进行了除草试验。一、试验材料与方法 Weeds are the enemies of tree nurseries, many species, the number of large, artificial weeding costs time and costs. In our county, the annual seedling area is 16.7ha, of which the area of ​​cedar is more than 90%. Among the cost of nursery, artificial weeding accounts for more than 70-80% of the total labor and 60-70% of the total cost. In recent years, our county in the implementation of weeding ether and trifluralin herbicide used in nurseries based on the oxyfluorfen in pine, fir nursery weeding trials. First, the test materials and methods