山西地处黄土高原,大陆性气候明显,春季较长,十年九旱,常伴有风沙和寒潮的袭击.春季露地直播育苗成苗率不高,成为中药材生产的障碍.近年来,我们选择几种常用且难于出苗的中药材进行地膜覆盖试验,均取得了很好的效果.现将地腹覆盖对白芷出苗的影响作一简报. Shanxi is located in the Loess Plateau, the continental climate is obvious, the spring is longer, nine years of drought ten years, often accompanied by sand and cold wave attacks .During the open field in spring seeding seedling rate is not high, a Chinese herbal medicine production obstacles.In recent years, Select several commonly used and difficult to emerge Chinese medicinal materials for mulching test, have achieved good results.At the abdomen cover now on the impact of the emergence of Angelica make a briefing.