果尔作为一种应用较多的化学除草剂,已经在苗圃中广泛应用.通过试验得出结论:一年生针叶树出苗前采用果尔土壤处理除草,对红松效果最好,其次是红皮云杉和樟子松.二年生针叶苗木生长期采用果尔土壤处理除草,对红皮云杉效果最好,其次是红松和樟子松.因此说果尔是林区比较理想的除草剂.“,”Fluoroglycofen has been applied in the production of nursery as an application of more herbicide,through our test,the results indicated that: Fluoroglycofen soil was used on the weed of annual needle leaved tree before the seedlings unearthed,the best was the Pinus koraiensis Sieb.et Zucc.,followed by Picea koraiensis Nakai,and finally Pinus sylvestris Linn.var.mongolica Litv.and it was used on the weed of biennial needle leaved tree in the growth period,the best was the Picea koraiensis,followed by Pinus koraiensis,and finally P.sylvestris var.mongolica,so fluoroglycofen was an ideal herbicide.