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青海省林科所于1986年连续5年在所内苗圃地用采穗圃和天然林中的砂地柏2～5年生侧枝作种条,进行扦插育苗获得较高成活率。技术要点:平削切口,保留针叶,插穗先水浸2～3天,再用ABT 2号生根粉100ppm溶液浸4小时,浸深10cm;浸后斜插35°角左右,插入土中深10cm;株行距12cm×25cm,成活率达86.0%～98.2%。其中采穗圃种条比天然林中的生根率高10.1%。扦插苗比实生苗提前4年出圃,既缩短了育苗周期(2年出圃),又降低了成本。
Forestry Bureau of Qinghai Province in 1986 for 5 consecutive years in the nursery with the sprouts and natural forests in the sand bark 2- to 5-year-old branches for planting strips, cutting propagation achieved a higher survival rate. Technical points: cut incision, keep needles, cuttings first flooding for 2 to 3 days, and then ABT 2 rooting powder 100ppm solution immersion 4 hours, soaking 10cm; immersion oblique inserted about 35 ° angle, inserted into the soil depth 10cm; spacing 12cm × 25cm, the survival rate of 86.0% to 98.2%. Among them, the sprouting varieties in the spike garden were 10.1% higher than those in the natural forest. Cuttings 4 years earlier than the real seedlings nursery, not only shorten the nursery cycle (2 years), but also reduce costs.