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莱州市大山林场和莱州市林业局选择15～20年生构树上的1～2年生粗壮枝条作种条,剪取种条基部和中部枝段进行扦插育苗,成活率达到75％以上,扦插3个月
Laoshan Dashan Forest Farm and Laizhou Forestry Bureau chose to grow 1-2 year-old stalks on the tree of 15-20 years old and cut the seedlings of the base and the middle branch for cutting and seedling, the survival rate reached more than 75%. Cuttings 3 Months