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毛白杨(Populus tomentosa)生长快,材质好,树干高大通直,在华北地区很受群众欢迎。但用常规育苗方法繁殖毛白杨较困难,尤其是硬枝扦插育苗成活率很低。为了探索提高毛白杨扦插成活的方法,我们进行了套塑料袋扦插育苗,取得了良好的效果,既提高了扦插成活率又促进了苗木的生长。一、试验地基本情况试验地设在本校苗圃内,该地年平均气温
Populus tomentosa grows fast, the material is good, the trunk is tall and straight, and it is very popular among the people in North China. However, it is more difficult to breed Populus tomentosa with the conventional seedling raising method, especially the survival rate of hardwood cuttage seedling is very low. In order to explore ways to improve the survival of Populus tomentosa cuttings, we conducted a set of plastic bags cutting seedlings, and achieved good results, both to improve the survival rate of cuttings and promote seedling growth. First, the basic situation of the experimental ground In the nursery school, the average annual temperature