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为了适应大力发展红松,培育优质壮苗的需要,我们在种子处理、播种方式等技术方面作了一点改进,并取得了较好的效果。现简介如下。一、种子处理红松育苗用种以往多采用隔年埋藏和隔冬埋藏方法处理种子。虽然可行,但从播种到出苗时间较长,一般需50～55天,而且幼苗出土参差不齐。在海拔1100米,无霜期很短的红旗苗圃,即使尽量适时早播,也延长不了苗木的生长期。苗木出土时,多遇高温季节,遭受日灼,立枯病严重,秋天又常遭早霜冻害,因而严重地影响了苗木的正常生长,其产量和质量都难予达到技术规程的要求。
In order to adapt vigorously to the development of Korean pine and nurture the needs of strong and strong seedlings, we made some improvements in the techniques of seed treatment and sowing methods and achieved good results. Now the introduction is as follows. First, the seed treatment Seedlings of Korean pine seedlings in the past to use more than three years buried and winter planting method of seed treatment. Although feasible, but from the sowing to the emergence of a longer time, generally take 50 to 55 days, and unearthed seedlings uneven. At 1100 meters above sea level, the red flag nursery with a short frost-free period can not prolong the growth period of seedlings even if it is sown as early as possible. When the seedlings are unearthed, the plants often suffer from the sunburn, the severe autumn blight and the early frost damage in the fall, which seriously affect the normal growth of seedlings. The yield and quality of seedlings are hard to meet the technical requirements.