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位于海拔1700米高寒山区的浏阳大围山林场,1972年引进了一批广西香椿,但因抗寒能力差而失败,只留下树蔸还存活。后来林场采用嫁接湖南香椿的方法,解决了广西香椿不能抗寒的问题。1973年林场试接了30株,由于嫁接技术不高,管理不善,只活了两株,一年生长2米,根茎粗30厘米,经过大冰冻的考验,今春生长良好。1974年在总结经验的基础上又嫁接了200株,成活196株,正在蓬勃生长。广西香椿是亚热带速生树种,主要弱点是木质化慢,每遇严寒,平地死梢,高
Located at 1700 meters above sea level in the alpine mountainous area of Dayuishan Forest Farm in Liuyang, Guangxi Province introduced a number of Toona sinensis in 1972, but due to poor cold tolerance and failure, leaving only the tree shrew still alive. Later, the method of grafting Hunan Toona woodlands to solve the problem of toon can not be cold in Guangxi. In 1973, 30 farms were tested. Due to the low technology of grafting and poor management, only two live plants were born, growing two meters a year, and the root rhizome was 30 centimeters thick. After a large freezing test, this spring had a good growth. In 1974, on the basis of summing up experiences, 200 plants were grafted and 196 surviving plants were growing. Guangxi Toon is a subtropical fast-growing tree species, the main weakness is slow lignification, each encounter cold, flat to the death shoots, high