在常规育苗的基础上,通过筛选良种培育砧木、重施有机肥作基肥、选用良种壮穗、科学病虫害防治、巧妙利用磷酸二氢钾的功效、合理打顶等一系列措施,培育超级壮苗,其一年生苗高20 cm以上,地径0.28 cm以上,两年生苗高40～50 cm,地径0.4 cm以上,且分枝数多,抗病性、抗寒性均比常规育苗好.%On the basis of conventional seedlings, a series of measures to cultivate super strong seedlings were taken, such as cultivating rootstocks by screening improved variety, applying organic fertilizer as base fertilizer, using strong scions of improved variety, scientific pest control, ingeniously using the efficacy of potassium dihydrogen phosphate, reasonable topping, etc. The height and diameter of one-year-old seedlings reached above 20 cm and 0. 28 cm respectively, and the two-year-old's reached 40~50 cm and 0. 40 cm respectively, and their branch number, disease resistance and cold resistance were all better than conventional seedlings.
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