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1.砧木选择砧木选用大树龄的国槐,干径在8～15厘米,枝干高度在2.2～3.2米。这种大树龄的国槐生长健壮、根系发达、吸肥力强,一旦嫁接成功,生长极为迅速。第二年即可用于园林绿化。
Rootstock selection rootstock selection of large-tree-aged Sophora japonica, stem diameter of 8 to 15 cm, branch height of 2.2 to 3.2 meters. This large age of Sophora japonica grow robust, developed root system, strong absorption of fertility, once the success of grafting, the growth is extremely rapid. The second year can be used for landscaping.