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我站在总结1977年落叶松全光育苗的基础上,1978年协助岚城社办林场育落叶松苗8亩,平均亩产苗木12.5万株。现将我们在育苗实践中,摸索出的苗木管理经验总结如下:一、育苗概况:圃地选在干渠旁,能排能灌。高床育苗,床高20厘米,宽50—70厘米。从省种子公司调入种子,饱满度40%,室内发芽率20%,质量较差,影响了出苗率和产苗量。种子处理采用温水浸泡后,混拌锯沫、河沙催芽,经5天大半数种子裂嘴即下种。4月底播种,10天后出齐。二、五个不同苗木生长期:为了做到科学管理苗木,我们将落叶松一年生播种苗从下种到第二年返青,大致分为五个不同苗木生长期,不同时期有不同的管理要点:
On the basis of summing up the larch seedling nursery in 1977, I assisted in Lancheng Community in 1978 to cultivate 8 mu of larch seedlings, with an average of 125,000 mu of seedlings per mu. Now we practice in nursery stock, nursed stock management experience is summarized as follows: First, the nursery Overview: Nursery selection in the canal next to row irrigation. High bed nursery, bed height 20 cm, width 50-70 cm. Seeds from the provincial seed companies, plump 40%, indoor germination rate of 20%, poor quality, affecting the rate of emergence and seedling production. Seeds treated with warm water soaked, mixed sawdust foam, river sand sprouting, the majority of 5 days after cracking seed mouth that seed. Sown by the end of April, 10 days after the Qi. Second, five different seedlings growing season: In order to achieve scientific management of seedlings, we planted larvae annual seedlings from the next year to rejuvenate, roughly divided into five different seedling growth stages, different periods have different management points: