摘要
对苗木剪顶的效果、技术要点及有关问题作了报道 :①通过剪顶苗生长效应的研究 ,揭示了剪顶对抑制苗高、促进增粗、增强木质化、降低高径比等调节苗木生长的作用 ,为培育粗壮相对高度合理的优质苗提供依据 ;②实施剪顶应掌握适时与剪顶高度等技术要点 ,剪顶时间以苗木生长旺盛期的 8月中旬最适 ,剪顶高度以 2 0cm为宜 ;③对剪顶苗是否会出现多主干现象、接干不良影响干形、幼嫩芽梢冻害等问题作了分析与研究 ;④马尾松大田苗剪顶技术简便易行 ,用工投入少、技术增益高 。
This paper reported the effects,key techniques and relative questions of cutting top of seedings.① Cutting top of seedlings of Pinus massoniana could inhibit heighth,improve thickening growth,increase lignification and decrease ratio of heighth to diameter.②The suitable top-cutting time and heighth are mid-August and 20cm,respectively.③This paper analysed some questions relative to this technique,such as multiple-stem phenomenon and freeze damage of tender buds and tops.④Top-cutting techniques for field seedlings of Pinus massoniana is practical and have great economic benefits.
出处
《浙江林业科技》
北大核心
2000年第1期64-67,93,共5页
Journal of Zhejiang Forestry Science and Technology
关键词
马尾松
大田苗
剪顶技术
剪口芽梢
育苗技术
Pinus massoniana
field growing seedling
top-cutting techniuqes
sheared budling
