近几年来,各地都在大力发展杜仲生产,对杜仲苗的速生技术也引起重视。1981年以来,巫溪县科委、医药局、中药材公司的科技人员,应用无性全截更新杜仲苗,株高生长比实生苗快1.4—2倍,径生长快1.2倍。大大地推动了全县杜仲生产。从81年开始,到86年底为止,经过两年试验、四年推广,全县已有50个乡(占全县70个乡的71%)用速生办法栽植杜仲苗410万余株,成活率95%以上,拆合面积3.2万余亩。笔者查阅和分析了有关栽培资料,决定将林业上对阳生性泡桐树更新速生的办法,应用到杜仲苗上来。设立一个对比试验点,一个示范推广点。对比试验点,设在海拔930米的青庄乡甘龙村王 In recent years, all over vigorously develop the production of Eucommia Eucommia seedlings of fast-growing technology has also attracted attention. Since 1981, Wuxi Science and Technology Commission, the Medical Bureau, Chinese herbal medicine company’s scientific and technological personnel, the application of asexual full section update Eucommia seedlings, plant height growth 1.4-2 times faster than seedlings, diameter growth 1.2 times faster. Greatly promoted the county eucommia production. From 81 to the end of 86, after two years of trial and four years of promotion, 50 townships (71% of the 70 townships in the county) have planted more than 4.1 million Eucommia ulmoides plants with a fast-growing method and the survival rate More than 95%, demolition area of ​​32,000 acres. The author consulted and analyzed the relevant cultivation information and decided to apply the method of applying Eucommia seedlings to the method of updating the fast-growing and health-preserving Paulownia tree in forestry. Set up a comparison test point, a model promotion point. Comparison of test points, located at 930 meters above sea level Qingzhuang Township Wang Ganlong village