龙胆草为龙胆科多年生草本植物,主产东北及华北地区,株高30～60厘米,根及根茎入药,有泻肝胆实火、除下焦湿热之功效。龙胆草多采用分株繁殖、根茎繁殖和种子育苗移植,前二者繁殖系数低,后者耗费工时,生产意义不大。现将龙胆草直播栽培技术介绍如下,供生产和实验中参考。一、生长习性龙胆草喜凉爽湿润气候,耐寒,忌强光。种子细小(千粒重24～27毫克),温度适宜(20～25℃)、土壤湿润和弱光照射, Gentianaceae gentianaceae perennial herb, the main production of northeast and north China, plant height of 30 to 60 cm, root and rhizome into medicine, with liver and gallbladder real fire, in addition to the effect of coke moist heat. More use of gentian breeding ramets, rhizome breeding and seedling transplantation, the former two low coefficient of multiplication, the latter time-consuming, meaning little. Now gentian grass planting technology introduced below, for the production and experimental reference. First, the growth habit gentian hi cool moist climate, cold, bogey glare. The seeds are small (24-27 mg per 1000 kernel weight), suitable temperature (20-25 ℃), soil wetting and low light exposure,