论文部分内容阅读
火炬松、湿地松育苗目前主要靠进口种子繁殖,成本高,且每年进口收到的日期不一致.迟收种子推迟播种,影响苗木质量.为此,我场于1982年开始用1年生实生苗从针叶中抽发出来的枝条(我们称之为芽枝)进行扦插育苗,经两年试验取得了较满意的结果.火炬松扦插愈合率91.76%,生根率0%;湿地松愈合率86.77%,生根率80%.扦插方法(一)圃地选择选地势平坦、灌溉方便、排水良好、土层深厚的砂质壤土或壤土作苗圃地.扦插前每亩施六六六粉3斤或六六六与1605混合粉2—3斤.进行土壤消毒,以防治地下害虫.
Pinus elliottii and Pinus elliotis are currently mainly relying on imported seeds to breed, the cost is high, and the date of import received each year is inconsistent. Delayed sowing of seeds delayed sowing, affecting the quality of nursery stock.To this end, I started in 1982 with 1-year-old seedlings from Softwood cuttings (we call them buds) were cuttings, and the satisfactory results were obtained after two years of experiment.The incision rate of cuttage of loblolly pine was 91.76%, the rate of rooting was 0%, the healing rate of slash pine was 86.77% , Rooting rate of 80%. Cutting method (a) choice of land selection flat topography, easy irrigation, well drained soil deep sandy loam or loam for nursery to cuttings before the six or six powder 3 kg or six Six six and 1605 mixed powder 2-3 kg. Soil disinfection to control underground pests.