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在苗木生长过程中加强抚育管理,是培育壮苗,提高苗木产量的关键措施。播种苗的抚育管理主要有:覆盖、灌溉、松土、间苗、追肥和苗木防寒等。 (1)覆盖:一般覆土薄的小粒种子,如杨、柳、桦、落叶松等,根据具体的技术条件和圃地条件,可以在覆土以后再加覆盖物,以保持土壤湿润,避免烈日照射,防止鸟害和冻害,并可减少灌溉次数。覆盖物可就地取材,如秸秆、谷壳、锯末等。覆盖不宜过厚,以不露床面为宜。当幼芽大量出土
Strengthen nurture management in the process of seedling growth is the key measure to nurture strong seedlings and improve seedling yield. Sowing seedling tending and management are: covering, irrigation, loose soil, thinning, topdressing and nursery stock cold and so on. (1) Covering: The general thin-coated small seeds, such as poplar, willow, birch, larch, etc., according to the specific technical conditions and nursery conditions, can be added after covering the cover to keep the soil moist, to avoid sun exposure Prevent bird damage and frost damage, and reduce irrigation times. Cover materials available locally, such as straw, chaff, sawdust and so on. Coverage should not be too thick, not to expose the bed is appropriate. When a large number of young shoots unearthed