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为使菜用香椿矮化，在造林的当年应不进行截干平茬与摘心，以养树势。自第２年起，每年在采收第二茬嫩芽后，对茎干和一、二级侧枝进行一次截干平茬。对生长枝每年摘心次数以２次为好，时间以５～６月份为宜。截干平茬与摘心的部位对促进萌芽数的多少没有影响。矮化密植密度以２８００～３４００株／６６７ｍ２左右为好，初植密度应不大于４０００株／６６７ｍ２。
In order to dwarf the vegetables toon, in the afforestation of the year should not be cut dry stubble and topping, in order to raise trees. Since the second year, every year in the harvest after the second crop of buds, stems and primary and secondary collateral for a stump cut. On the growth of branches topping twice a year as well, time to 5 ~ June is appropriate. Cut stubble and topping sites to promote the number of sprouting no effect. Dwarf density close to 2800 ~ 3400 / 667m2 is better, the initial planting density should not exceed 4000 / 667m2.