泡桐高干壮苗的培育西华林场叶艳涛长期以来，泡桐做为我国华北平原地区农桐间作、农田林网及“四旁”绿化的主要树种，在改善生态条件、保证农业增产、提高木材产量方面起到极其明显的效益。但泡桐生长具有假二叉分枝的特点，主干不能直接向上延续生长，往往所植苗高即决... Paulownia tall stem strong seedling cultivation West China Forestry Center Ye Yantao For a long time, Paulownia as the North China Plain in the Intercropping of farmland, farmland forest network and the “four sides” of the main tree species in improving ecological conditions, to ensure that agricultural production and improve timber production Played a very significant benefit. However, the growth of Paulownia has the characteristics of bifurcation branches, the trunk can not be directly continued upward growth, often by planting high shoots ...