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我所七五年从北京植物园引种的火炬树,根据一年的观察,在太原地区生长良好。现将试验情况简介如下: 一、引种地区的环境条件该树种的引种育苗试验,在我所试验苗圃进行。据太原市气象站观察,年平均气温9.3℃,绝对最高温度39.4℃,绝对最低温度-25.5℃;平均年降水量466.6毫米,雨量主要集中在6～8月份;年平均相对湿度60%,无霜期平均276天。试验地位于汾河一级阶地,地下水位1.5～2米,冲击沙壤质土,微碱性。二、试验方法五月五日取回苗根五株,浸水24小时,去掉萌芽(根株寄来时已有三分之一左右的根子开始萌发),七日上午进行埋
The torch tree that I introduced from the Beijing Botanic Garden in 1975 has grown well in Taiyuan according to one year of observation. Now the test conditions are as follows: First, the introduction of the environmental conditions of the introduction of seedlings nursery trials, I nursery in the test. According to Taiyuan Meteorological Station observation, the annual average temperature of 9.3 ℃, the absolute maximum temperature of 39.4 ℃, the absolute minimum temperature of -25.5 ℃; average annual precipitation of 466.6 mm, rainfall mainly concentrated in June to August; average annual relative humidity of 60%, frost-free period Average 276 days. The experimental site is located in Fenhe a terraces, groundwater level of 1.5 to 2 meters, the impact of sandy loamy soil, slightly alkaline. Second, the test method May 5 to recover five seedlings, soaking 24 hours, remove the sprouts (root stalks sent when about one-third of the roots began to germinate), buried on the 7th morning