美国南方林业试验站研究出一种简便易行适用于针阔叶树种且费用低廉的扦插生根方法。其关键步骤是在采穗前一两个月进行环剥,阻止糖分通过韧皮部向下输送,使糖分在环剥段上端积累形成瘤状物和根原体。整个过程按10步进行; 1、在距离顶芽15—20厘米处除去叶片 South American Forestry Experiment Station developed a simple and easy to apply to coniferous and deciduous species and low cost cutting rooting method. The key step is to girdle one or two months before heading to stop the sugar from being transported down through the phloem, allowing the sugar to accumulate at the top of the ring peel to form nodules and root pathogens. The whole process according to 10 steps; 1, 15-20 cm away from the top of the bud to remove the leaves