林木在幼龄阶段长得比较缓慢,尤其针叶树更是如此。为了加速林木生长,我们对樟子松采取了掰芽试验,以探求其速生的途径。现将试验过程和分析结果初报如下。一、试验地自然概况试验地设在临江林业局桦树林场170林班更新造林4小班,南坡16°,灰棕壤土,pH值6.2。年均气温2.8℃,年均降水量850mm。无霜期110天左右。 Trees grow more slowly at the young age, especially conifers. In order to accelerate the growth of forest trees, we took the test of breaking the buds of Pinus sylvestris to explore its fast-growing way. Now the test process and analysis of the results reported below. First, the natural conditions of the experimental site Experimental sites located in Linjiang Forestry Bureau Birch Forest Farm 170 reforestation afforestation 4 small classes, the southern slope of 16 °, brown soil, pH 6.2. Average annual temperature of 2.8 ℃, the average annual rainfall of 850mm. Frost-free period of about 110 days.