毛白杨属杨柳科杨属植物,它生长快,材质好,树干高大通直,是我国北方地区特有的优良乡土树种。它为雌雄异株,雌株较少,且雌雄株的花期不一致,不易获得种子,故主要用营养繁殖法培育苗木。常用的方法有插条法、嫁接法、埋条法和留根法等。1.插条育苗1.1硬枝扦插 Populus is a poplar genus of poplar, it grows fast, the material is good, the trunk is tall and straight, it is the unique native tree species in northern China. It is dioecious, females less, and the male and female plants are inconsistent flowering, difficult to obtain seeds, so the main method of nurturing nursery stock breeding. Common methods are cuttings, grafting, buried law and stay root method. 1. Cuttings nursery 1.1 hardwood cutting