雪松是珍贵的观赏树种和用材树种 ,因其开花结实期迟 ,且大多为雌雄异株 ,所以扩大繁殖的主要方法还是扦插育苗。其春季扦插方法如下 :1 插穗的剪枝。选择 4～ 8年生的幼龄母树中上部通风向阳面的一年生粗壮枝条作插穗 ,在阴天或无风有露的早晨剪取 ,插穗长度 10～ 15ｃｍ ,下 Cedar is precious ornamental species and timber species, because of its late flowering and fruiting, and mostly dioecious, so the main method of expanding reproduction or cutting propagation. The spring cuttings are as follows: 1 cutting cuttings. Select 4 to 8 year-old young trees in the upper part of the aerial sunny side of the annual shoots robust cuttings, in the cloudy or windless dew morning cut, cuttings length 10 ~ 15cm, under