黄连Coptis chinensis Franch 的育苗技术几经改进,目前,在鄂西自治州多采用“种子沙藏,适时播种,精细培育”的精细育苗法,达到密集快速成苗的效果。但是,对于高海拔地区(海拔1400米以上),采用该法育苗,时间长,成苗率低,苗的质量差,因此往往采取低山育苗高山移栽的办法,工效低,成本高。为了改进高海拔地区的育苗技术,采用塑料薄膜覆盖育苗,达到当年播种当年出圃的目的。现将其方法总结如下。1.选地选择避风的早阳山林地作苗圃,以土壤疏松、腐殖质层深厚且排水良好、少生杂草的山腰、山脚较为适宜。地下水位高和肥沃的熟地不宜于地膜育苗。2.开厢苗圃地整好后,依地势按厢长5m,宽1.4m开厢,步道宽0.2～0.3m,深0.15m。同时竖木桩供搭棚用,木桩在步道正中或旁边。切忌直上直下开厢。3.播种将种子按常规方法进行沙藏,然 Coptis chinensis Franch’s breeding technology improved several times, at present, in western Guangxi Autonomous Region to use more “seed sand reservoir, timely sowing, fine cultivation,” the fine nursery method, to achieve the effect of intensive rapid seedling. However, for high-altitude areas (above 1400 meters above sea level), adopting the method of raising seedlings for a long time and with low seedling rate and poor quality of seedling, it is often adopted to transplanting alpine seedlings in low mountainous areas with low work efficiency and high cost. In order to improve the nursery technology in high altitude areas, plastic film covering nursery, to achieve the purpose of the year when planting sowing. Now the method is summarized as follows. 1. Select the shelter for the shelter of the early Yang Shan forest nursery to loose soil, deep humus layer and well-drained, less hillsides, weeds are more appropriate. Groundwater level and fertile Rehmannia should not be plastic film seedlings. 2. Open box nursery after the good, according to the terrain by car length 5m, width 1.4m open box, Trail 0.2 ~ 0.3m wide and 0.15m deep. At the same time vertical stakes for scaffolding, stakes in the middle or next to the trail. Never straight down the box. 3. Sowing the sand by conventional methods, however