天麻是一种兰科植物,它与密环菌共生在一起。天麻块根茎是一种名贵药材,国内外市场紧俏。由于野生资源有限,近几年人工栽培天麻在全国各地均有推广,但用传统栽培方法有许多不足之处,所以产量很不稳定。中国医科院教授徐锦堂从事本项研究30余年,成功地把天麻人工栽培技术产量提高到国内最高水平,该技术获国家专利。我县引进该技术在西峡推广二年多来,实践证明增产幅度在10—30倍 Gastrodia is a kind of orchidaceae, which symbiosis with the bacteria ring together. Gastrodia rhizome is a valuable medicine, domestic and foreign markets tight. Because of limited wild resources, artificial cultivation of Gastrodia in recent years have been promoted throughout the country, but the traditional cultivation methods have many shortcomings, so the output is very unstable. Xu Jintang, a professor of Chinese Academy of Medical Sciences, engaged in this research for more than 30 years and succeeded in raising the output of artificial cultivation of Tianma to the highest level in China. The technology was nationally patented. I County to introduce the technology in Xixia to promote more than two years, the practice proved that the rate of increase in 10-30 times