毛白杨是我县优良的乡土速生树种,为适应林业上《纲要》、“实行大地园林化”新的跃进形势,近几年我们普及推广了毛白杨炮捻嫁接育苗。为了提高嫁接成活率和苗木质量,于一九七六年春嫁接过程中,我们采用不同的处理方法,观察其对成活及生长状况的影响,现将初步试验结果总结如下。 Populus tomentosa is our county excellent native species of fast-growing trees, in order to adapt to the forestry “outline”, “the implementation of the earth garden” new leap forward situation, in recent years we popularize Populus tomentosa twist grafting seedling. In order to improve the graft survival rate and seedling quality, we used different treatment methods to observe the effects on the survival and growth during the grafting in the spring of 1976. The preliminary test results are summarized as follows.