北方地区核桃大树全冠移植技术要点

Full Crown Transplantation Techniques of Big Walnut Tree in North China

园林工程中,大树移植日益普遍。但由于核桃树休眠期外修剪,极易伤流,引起枝干干枯,造成栽植成活率低。在绿化施工中对核桃大树进行全冠移植,避免了因修剪而造成的伤流,极大地提高核桃大树移植成活率。文章从全冠移植前的准备、移植时间、土球大小、根部处理、固定支撑、树盘处理、水分管理及病虫害防治等方面介绍了核桃大树全冠移植技术。

In the landscaping works, big trees transplantation is becoming more and more common. However, out of the dormancy stage, walnut tree pruning can lead to branches withering and low planting survival rate. Bleeding can be avoided by full crown transplantation, which greatly increase planting survival rate of big walnut tree. In this paper, full crown transplantation techniques of big walnut tree were introduced from the aspects of preparation works, transplanting time, soil ball size, treatment of root, fixation and support, treatment of wood disk, water management and pest control.