摘要
采用内壁涂有不同浓度碳酸铜的容器培育出兴安落叶松(Larix gmelini(Rupr.)Rupr.)苗木,苗木侧根受碳酸铜的抑制,减小了根系变形的程度。通过对处理苗木根生长潜力的测定表明:碳酸铜浓度为100～150g/L时改变了兴安落叶松容器苗新根的分布状态,根系中、上层的新根数量明显增加,这样的苗木根系更接近自然发育的苗木根系,从而克服了一般容器苗根系易变形的缺点。
Containers deform seedling root systems and have the potential to inhibit tree growth after outplanting. Larix gmelini was grown in containers coated with latex paint containing different concentrations of cupric carbonate (C_uCO_3). Seedlings were chemically root pruned with cupric carbonate and any deforming root systems were eliminated. Seedlings were potted after one growing season, initiating a root growth potential test. Seedlings increased in new root number, in the upper and middle portion of the root system as a result of cupric carbonate(concentration in 100～150g C_uCO_3/L).These seedling roots are more like the natural developed root systems, which solves the problem of general containerized seedlings after outplanting.
出处
《北京林业大学学报》
CAS
CSCD
北大核心
1991年第2期21-25,共5页
Journal of Beijing Forestry University
关键词
兴安落叶松
化学剪根
容器苗
Larix gmelini, chemical root pruning, containerized seedling, cupric carbonate, root growth potential
