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刺楸是我国北方珍贵阔叶树种之一。近些年来,天然分布的刺楸树木已被砍伐殆尽,人工造林苗木来源受到很大的限制。为开辟刺楸育苗的新途径,丹东市林科所等单位,从1976年开始探讨埋根育苗新技术。使刺楸埋根育苗成活率达到20—50％,每亩产苗量达1.2万株。刺楸埋根育苗用来截取根穗的苗木最好是当年生的播种苗或埋根苗,用于截根的苗木要就地越冬,防止根腐。育苗地要选择不重茬和
Catalpa bungei is one of the precious broad-leaved species in northern China. In recent years, natural distribution of Catalpa bungei trees have been cut down, the source of artificial afforestation seedlings is greatly restricted. In order to develop a new way of raising seedlings of Cervica nipponica, Dandong City Forestry Branch and other units, starting from 1976 to explore new technology rooted seedling. So that Catalpa bungei rooted seedlings survival rate of 20-50%, the amount of seedlings per acre reached 12,000. Catalpa bungei root nursery seedlings used to intercept the root spike is best when the sowing or planting seedlings rooted for the truncated seedlings to the winter, to prevent root rot. Nursery to choose not crop and