1 选用良种壮苗育苗采用当年生优良树种子,把采好的良种用湿沙处理,经15～20d催芽开始萌发,即可播种。栽植的苗木达到国家规定标准:一级苗70cm以上,二级苗50～70cm,根系发达,无病虫害。2 选择向阳、土层厚的地方栽植杜仲对气候和土壤条件要求不严,中性、微酸性和微碱性的砂质壤土或粘壤土均可栽种。但最适宜 1 selection seedling seedling breeding current year using good tree seeds, the mining of good seeds with wet sand treatment, germination by 15 ~ 20d germination, you can sow. Seedlings planted to meet the state standards: a seedling 70cm above, secondary seedlings 50 ~ 70cm, developed root system, no pests and diseases. 2 Choose sunny, thick soil planting Eucommia on the lax weather and soil conditions, neutral, slightly acidic and slightly alkaline sandy loam or clay loam can be planted. But the most suitable