杜仲在甘肃省嘉陵江上游、白龙江下游的小陇山林区有天然分布，它适宜生长在土层深厚、肥沃湿润的微酸性土壤中，喜光、耐低温及干旱，在浅山及平原地区生长发育良好。１育苗技术１１播种育苗选择生长发育良好、无病虫害的母树采种。种子一般在１０～１１月采收，然后放... Eucommia has a natural distribution in the upper reaches of Jialing River in Gansu Province and Xiaolongshan forest in the lower reaches of Bailongjiang. It is suitable for growing in slightly acidic soil with rich, moist and moist soil. It grows and develops well in light and low temperature and in the plains. A nursery technology 1 1 sow seedling selection Growth and development of good, no pests and diseases of the mother tree seed. Seeds are generally harvested from October to November, and then ...