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落叶松苗木春季萌动早,土壤解冻时,苗木的芽梢已经膨胀,有的甚至开放,这时起苗移植,就会降低成活率。因此,落叶松播种苗必须秋天起苗,经越冬贮藏第二年春季栽植。 用窖藏法贮藏落叶松苗木,既能推迟春季萌发期,延长造林时间,提高造林成活率,又能克服假植干梢等缺点,以利苗木安全越冬。 要选择地势平坦、排水良好、地下水位低、便于管理的地方挖窖。窑的上口宽2米,窖底宽1.2米,深1.5米,长度依苗木数量多少而定。窖中每隔2米立一根2米高立柱,上面架上横梁,铺10厘米厚的秫秸,抹一层泥,把窖顶做成屋脊形。窖顶每隔2米留1个40厘米见方的气孔,窖的四周要挖排水沟。
Larch seedlings early spring sprouting, thawed soil, shoots buds have been expanded, and some even open, then seedling transplant, it will reduce the survival rate. Therefore, larch sowing seedlings must fall seedlings, the winter planting after the winter storage. Larch storage method using larch seedlings, not only postpone the spring germination period, extended afforestation time, improve survival rate of afforestation, but also to overcome the shortcomings of fake plants such as stems, to facilitate the safe winter seedlings. To choose a flat, well-drained, low groundwater level, easy to manage place dig pits. Kiln catchy width of 2 meters, cellar bottom width of 1.2 meters, 1.5 meters deep, the length of the number of nursery stocks may be. Cellar every 2 meters to establish a 2-meter-high column, the top rack beams, shop 10 cm thick straw, wipe a layer of mud, the top of the pit made of ridge-shaped. Every 2 meters at the top of the pit to leave a 40 cm square stomata, cellar around to dig drainage.