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岳阳市洞庭氮肥厂苗圃,9月中旬扦插雪松,次年10月检查,成活率80％。插床宽1米,长4米,高30厘米。插壤用蛭石或珍珠岩,也可用细沙壤土、锯末经消毒后使用。选20年生以上、无病虫害、生长健壮植株,从阳面树冠中部剪条,当年枝,带老枝顶端剪下,带踵削平伤口,去掉基部的叶子至插枝长的1/3。用浓度为200—300ppm萘乙酸药液浸基部1—2秒钟,随后插入,株行距各5厘米。搭1.8米高的荫棚,透光25％,东西南三面挂帘,叶面喷水,
Yueyang Dongting nitrogen fertilizer plant nursery, cedar cuttings in mid-September, the following year in October check, the survival rate of 80%. Slitter 1 meter wide, 4 meters long, 30 centimeters high. Inserted with vermiculite or perlite, but also can be fine sand loam, sawdust after disinfection use. Choose 20 years old or more, no pests and diseases, grow robust plants, cut from the middle of the crown of the sun crown, when the branches, with the top of the old cut, with a heel cut flat wounds, remove the base of the leaves to cut the length of 1 / With the concentration of 200-300ppm naphthalene acetic acid liquid base soak for 1-2 seconds, then inserted, the line spacing of 5 cm. Take 1.8-meter-high shade shed, 25% of light, east and west three sides curtains, foliar spray,