日本落叶松(Larix leptolepis)原产日本,它适生范围广,生长初期快,抗病性能强,是一种速生丰产用材林树种。在我国引种栽培已有60余年的历史,目前已成为我国东北东部北纬45°以南山地的主要造林树种。此外,我国山东、北京、河南、山西、湖北、四川、新疆等地也有引种栽培。我省的引种栽培始于70年代,通过近20年的培育,已初步显示出其速生性,丰产性。近年来我省太行、太岳、中条等林局都相继开展了日本落叶松的引种栽培工作。但由于该树种种子颗粒小,顶土力弱,播种育苗比较困难,往往由于育苗技术问题,导致育苗失败。因此,掌握育苗技术,培育出大量合格苗木,已成为大面积引种栽培的关键环节。为此,我们于1990年在大河林场进行了日本落叶松育苗试验,试验面积2亩,其中春季育苗1.5亩,雨季育苗0.5亩,均获得了成 Japanese larch (Larix leptolepis) native to Japan, it is suitable for a wide range of habitats, early growth, disease resistance, is a fast-growing high-yield timber species. Introduction and cultivation in China has been more than 60 years of history, has become China’s northeastern latitude 45 ° north of the main afforestation species. In addition, China’s Shandong, Beijing, Henan, Shanxi, Hubei, Sichuan, Xinjiang and other places also introduced cultivation. The introduction of cultivation in our province began in the 70s, through nearly 20 years of cultivation, has shown its initial rapidity, high yield. In recent years, our province Taihang, Taiyue, Zhongtiao and other forest bureau have carried out the introduction of Japanese larch cultivation. However, due to the seeds of small seeds, top soil weak, sowing seedlings more difficult, often due to nursery technology problems, resulting in failed nursery. Therefore, grasping seedling technology, nurturing a large number of qualified seedlings, has become a key area for a large area of ​​introduction and cultivation. To this end, we carried out in Japan in 1992 large larch seedlings nursery trials, the test area of ​​2 acres, of which 1.5 acres of nursery in spring, 0.5 mu seedlings in the rainy season, were obtained into