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火炬松是优良的外引松树。它生长速,干型好,成材早,适应性强,深受广大群众喜爱。该树种主要靠种子繁苗,且种子主要来源靠进口,比较珍贵。所以,采用科学的育苗技术措施,努力提高种子的产苗量和苗木的质量,对加速发展这一优良树种具有重要的意义。 经多年育苗实践证明:选用育过松苗的土地作圃地,采取低温湿砂贮藏处理种子,用点播方法精细播种,及在幼苗出土前后严防鸟害等项技术措施,是育好火炬松苗的关键措施。 但是,在育苗实践中往往碰到一些难题。如没有育过松苗的土地,只有其它的苗圃地,虽然可以采取在苗圃地上铺垫松林土,接种菌根菌,但在较大面积上铺土有困难;又如,虽有松苗圃,但因为此地习惯在春季栽松,待松苗出圃后,再整地播种火炬松,则因时间比较短促,圃地难以
Pinus taeda is a good external cited pine. It grows fast, good dry type, early, adaptable, loved by the masses. The tree species rely mainly on seedlings, and the main source of seeds by imports, more precious. Therefore, the use of scientific seedling technology and measures to improve seed production and seedling quality, accelerate the development of this excellent tree species is of great significance. After many years of nursery practice proved that: the selection of land over fertilized pine for nurseries, to take low-temperature wet sand storage seeds, fine sowing with on-demand methods, and prevent bird diseases before and after the emergence of seedlings and other technical measures, is the key to raising loblolly pine seedlings Measures. However, in the practice of nursery often encounter some problems. If there is no land of pine seedlings nursery, only other nursery can be taken in the nursery to pave the pine forest soil, inoculation mycorrhizal fungi, but in a larger area of soil laying difficulties; another example, although pine nursery, but because of this Accustomed to planted pine in the spring, to be out of nursery pine seedlings, and then planted sowing loblolly pine, because the time is short, difficult to nursery