马尾松不同家系施磷肥效应对比研究  

Comparison on Effects of Applying Phosphorus Fertilizer on Different Families of Pinus massoniana

作　　者：颜培栋[1] 李鹏 零天旺 陆绍浩 杨章旗[1] Yan Peidong;Li Peng;Ling Tianwang;Lu Shaohao;Yang Zhangqi(Guangxi Forestry Research Institute,Masson Pine Engineering Technology Research Center of National Forestry and Grassland Administration,Masson Pine Engineering Technology Research Center of Guangxi,Nanning,Guangxi 530002,China;Zhenlong Forest Farm,Hengxian,Guangxi 530327,China)

机构地区：[1]广西壮族自治区林业科学研究院,国家林业和草原局马尾松工程技术研究中心,广西马尾松工程技术研究中心,广西南宁530002 [2]横县镇龙林场,广西横县530327

出　　处：《广西林业科学》2020年第2期168-174,共7页Guangxi Forestry Science

基　　金：国家重点研发计划项目(2017YFD060030202);广西创新驱动发展专项资金项目(桂科AA17204087-4);“十三五”国家重点研发计划项目(2017YFD0601201)。

摘　　要：为明确不同家系马尾松(Pinus massoniana)生长对磷肥的敏感性,揭示磷肥的施肥效应,以6个马尾松优良无性系半同胞子代为研究对象,研究不同磷肥施入量对马尾松幼树6年生长的影响。结果表明,不同处理对各家系的保存率影响不显著;各家系在施肥前期地径和树高生长量差异显著;随着林龄和郁闭度增加,树高的差异导致林分蓄积量差异。不同施肥量对马尾松92号、99号、110号和104号家系生长特性的影响不显著;5~6年生的91号家系及3~6年生的105号家系,树高和单株材积均差异显著,这两个家系的最佳施肥量均为T2处理;综合分析T2处理对马尾松后期生长最有利。In order to clarify growth sensitivity of different Pinus massoniana families to phosphorus fertilizer and reveal effects of phosphorus fertilizer application, taking half-sib progenies of six elite P. massoniana clones as research objects, effects of different amounts of fertilization on growths of P. massoniana young trees in 6 years were studied. Results showed that different treatments had no significant effects on preserving rates of different families. Differences of ground diameter and tree height among different families were significant in earlier stage of fertilization. As increases of planting age and canopy density, stand accumulations were different because of differences of tree height. Effects of different amounts of fertilization on growth characteristics of family 92, family 99, family 110 and family 104 were not significant. Tree height and individual volume of family 91 at 5-6 year and family 105 at 3-6 year were significantly different, and the best fertilization amount was T2 treatment in both. By comprehensive analysis, T2 treatment was the most beneficial to later growth of P.massoniana.

关 键 词：施肥效应 马尾松 磷肥 

分 类 号：S795[农业科学—林木遗传育种]