一、育苗(一)育苗时间:春季尽早完成装袋下种,以确保造林时苗木为百日龄以上优质壮苗。(二)育苗地选择:选择背风向阳,既靠近水源,又相对靠近造林地,排水良好的地方作为育苗地。苗圃地选好后将其整成若干小畦,作为苗床,畦面要保持平整。(三)育苗方法:(1)营养土配制:选用生土,山坡坡度大或非耕地的黄土,此土无病菌。为避免土 First, nursery (a) nursery time: the completion of the spring as soon as possible under the bagging to ensure that when the seedlings for planting more than 100 days of quality seedlings. (B) the choice of nursery: choose lee sunny, not only close to the water, but also relatively close to afforestation, well-drained place as a nursery. After the nursery has been selected, it will be made up into smaller ones. As seedbed, the noodles should be kept flat. (C) nursery methods: (1) nutrient soil preparation: the selection of raw soil, large slopes or non-cultivated land loess, soil no bacteria. To avoid soil