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火炬松、湿地松生长快,材质好,干形直,适应性强,为荒山造林的优良树种。惟目前种子奇缺,严重影响发展。 为了研究探索火炬松、湿地松繁殖新途径,我场在今年春进行了空中压条试验,空压4000支,虽遇严重干旱,仍成活800支,成活率20％。 空压的具体方法和要求是:在春季4月20日到5月10日期间,选择松树上年秋梢的下部,先摘去针叶,再用单面刀片环状剥去1.5～2.0厘米长的树皮,露出木质部,然后均匀地包裹浸湿的苔藓,包上塑
Loblolly pine, rapid growth of P. elliottii, good material, dry straight, strong adaptability, good for afforestation of barren hills. However, the current shortage of seeds has seriously affected the development. In order to study and explore the new ways of propagation of Pinus taeda and Pinus elliottii, my field carried out the air-batten test this spring. There were 4000 air-pumped pits. In case of severe drought, 800 survived and the survival rate was 20%. The specific methods and requirements of air pressure are: In the spring April 20 to May 10, select the lower part of the pine last year’s autumn shoots, pick the needles, and then single-sided blade ring stripping 1.5 to 2.0 cm long Of the bark, exposing xylem, and then evenly wrapped wet moss, wrapped in plastic