泡桐苗期采用人工截干可使低杆变高杆,增加单株材积,已为人知,但截千技术以往报道甚少。为探索人工截千技术,我们于1985年春,对1、2年生泡桐苗进行了不同截千方法试验,当年9月对试验树进行了调查。一、试验地概况试验地设在三位农场、大呈村南地、南关试验苗圃和史庄乡林场,试验面积共40亩。前 Paulownia seedling stage with artificial truncated stem can make low bar high bar, increase the volume per plant, is well known, but cut off the technology rarely reported in the past. In order to explore the artificially cut off technology, in the spring of 1985, we carried out different methods to test the 1,2-year-old Paulownia seedlings. In September of that year, we conducted a survey on the test tree. First, the experimental site The experiment was located in three farms, Dachen village south, southern test nursery and history Zhuang Xiang forest farm, the test area of ​​40 acres. before