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为了解决泡桐苗干低、质量差、栽后缓苗期长、成材速度慢等生产上存在的问题。我圃于1978年对泡桐苗木进行了定时观察,初步掌握苗期生长规律,为育苗、管理提供一定的依据。并于1979年进行了泡桐高干壮苗培育试验,收到了较好的效果。当年获得埋根苗亩产800株,平均苗高3.71米,最高株达5米,平均胸径3.85厘米;平茬亩亩产700株,平均苗高5.81米,最高达7.5米。一、泡桐苗期生长规律
In order to solve the low Paulownia seedlings, poor quality, slow seedling after transplanting period, slow production and other production problems. I nursery in 1978 Paulownia seedlings were observed regularly to grasp the growth of seedling rules for nursery, management to provide some basis. And in 1979 Paulownia tall dry seedling cultivation test, received a good result. In the same year, 800 plants were planted, with the average seedling height of 3.71 meters and the highest strain of 5 meters with an average diameter at breast height of 3.85 cm. There were 700 strains of muleat per mu of land with an average height of 5.81 meters and a maximum of 7.5 meters. First, Paulownia seedling growth patterns