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我省大通地区海拔2,500多米,气候干旱缺水,风大寒冷,过去引种毛白杨,因繁殖困难,影响了发展。1975年以来,我们采用沙窖贮藏,越冬后翌春扦插育苗,收到了良好效果,其具体做法如下: 1.采条:选1-2年生无病虫害、生长健壮、树皮光滑的枝条,于11月底剪下,剪口要平,皮部无伤,用塑料布包好,防日晒干梢,经清水浸泡2小时后,转入湿窖沙藏。2.窖藏设置,选土壤较湿润的墙边地或阴坡山边地挖窖,窖深2米,宽2米,长度视
The Datong region of our province is more than 2,500 meters above sea level. The climate is arid and dry with a colder wind. In the past, Populus tomentosa was introduced, which hindered the development due to the difficulty of breeding. Since 1975, we use sand cellar storage, cuttings in the next spring after wintering, received good results, the specific practices are as follows: 1 mining: choose 1-2 years without pests, robust growth, bark smooth branches in Cut at the end of November, cut to be flat, skin no injuries, with a plastic bag, anti-sun dry tip, the water soak 2 hours later, into the wet pits sand reservoir. 2 cellar settings, select the soil moist wall edge of the hillside or hillside dug cellar, cellar depth of 2 meters, 2 meters wide, length of view