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扦插育苗,其插床土温高于气温3～5℃,有利于插穗形成愈合组织,促进根的迅速生长。常用的提高土温的方法有蒸气、烟道、电热、热水加温。然而这些方法都费财费力。笔者经两年的实验发现一种简易方法,现介绍如下。插床要建在高于地面12～15厘米的地方,周围用砖围拢。插床底部铺1～1.5厘米厚的煤渣或细石子,其上放3～5厘米的未完全腐熟的有机物,如树叶、稻草、圈肥等,再在上面铺7～8厘米厚的疏松砂质壤土。插穗一般长10—12厘
Cuttage nursery, the soil temperature is higher than the temperature of 3 ~ 5 ℃, is conducive to the formation of healing callus, and promote the rapid growth of roots. Common methods to improve soil temperature steam, flue, electric, hot water heating. However, these methods are laborious. After two years of experiments I found a simple method, are introduced below. Sling bed to be built above the ground 12 to 15 cm, surrounded by brick around. Loose bed at the bottom of shop 1 ~ 1.5 cm thick cinder or fine gravel, which put 3 to 5 cm on the incomplete maturity of organic matter, such as leaves, straw, circle fertilizer, and then shop in the above 7 ~ 8 cm thick sandy loam . Cuttings generally 10-12% long