几年来,随着林业工程项目的相继实施,施工杨树苗木规格严格控制在Ⅱ级以上。如何培育优质、健壮、无病害种苗是近期育苗户关注的热点问题。杨树地膜育苗可提高土壤温度和湿度,增加光照和叶面积,改善苗木的生长条件,抑制杂草,促进插穗的生根及生长,能显著提高苗木成活率、生长量及优质苗产量,且技术简便易行,便于实施推广。主要技术要点如下: Over the past few years, with the successive implementation of forestry projects, the construction of poplar seedlings specifications strictly controlled in Ⅱ grade above. How to cultivate high quality, robust, disease-free seedlings is the hot issue of nursery households. Poplar plastic film seedling can increase soil temperature and humidity, increase light and leaf area, improve seedling growth conditions, weed suppression, and promote rooting and growth of cuttings, can significantly improve seedling survival rate, growth and yield of high quality seedlings, and technology Simple, easy to implement promotion. The main technical points are as follows: