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1973年从全国各地引进来200余个杨树品种和系号,在长春市东风苗圃进行繁育观察,通过五年的观察对比,其中有几个品种编号,明显的表现生长迅速,抗性较强,在土地条件较肥沃的环境中,超过了当地认为最好的双阳快杨,生长速度快,生产潜力大。长春市东风苗圃位于长春市南近郊,属于小丘陵间的平地,在新立城水库的下方,土壤水分条件较好。春季土壤解冻时,土壤水分充足,土层较厚,粘壤质,黑褐色,较
In 1973, more than 200 poplar varieties and serial numbers were introduced from all over the country. Breeding observation was carried out in Dongfeng nursery of Changchun City. Through comparison and observation over five years, there were several species numbers, which showed obvious growth and strong resistance , In the more fertile land conditions, more than the local think the best Shuangyang fast, rapid growth, production potential. Changchun Dongfeng nursery is located in the southern outskirts of Changchun City, belonging to the small hills between the ground, below the Xinli Cheng Reservoir, soil moisture conditions are better. Spring soil thaw, soil moisture sufficient, thick soil, clay loamy, dark brown, more