不同施肥处理对西南桦幼林生长影响研究  

Study on Impact of Different Ways of Applying Fertilizer on Sapling Growth of Betula alnoides

作　　者：刘庆云 姜远标 付强 杨斌[2] 郑海水[3] 

机构地区：[1]云南省思茅市林科所,云南思茅665000 [2]云南省林业科学院,云南昆明650204 [3]中国林科院热带林业研究所,广东510520

出　　处：《林业调查规划》2007年第2期40-44,共5页Forest Inventory and Planning

基　　金：云南主要热带阔叶树种造林技术研究子项目(WG-B)

摘　　要：通过设计N、P、K、NP、NK、KP、NPK和CK肥等8个施肥处理,重复3次,进行不同肥料对西南桦幼林树高和胸径生长影响试验,通过单因素方差分析和多种比较结果表明:施肥能促进幼林的生长和发育,以NP肥促进作用最大;不同施肥处理高生长和胸径生长差异显著;幼树生长基本趋势是随林龄增长生长逐渐加快;西南桦生长与当地气候关系密切。The experiments were conducted to study the impact of eight times of treatments by applying fertilizer with repetition of 3 times on height and DBH growth of Betula alnoides sapling. The result showed that applying fertilizer could promote the growth of Betula alnoides, in which NP fertilizer was the most; and the differences of height and DBH growth were tremendous with different treatments; and the tendency of the growth were speeded up gradually with growing up ; and the growth of Betula alnoides related with the local climate.

关 键 词：西南桦 施肥 幼林生长 树高 胸径 方差分析 多重比较 

分 类 号：S792.15[农业科学—林木遗传育种] S753.532[农业科学—林学]