摘要
于2017—2021年,在福建省顺昌县岚下乡钱墩村钱墩工区,采用L 9(34)正交试验设计,对3年生闽楠幼林开展不同肥料种类、肥料用量和修枝强度试验,分析探讨养分和树体控制对其幼林生长和叶营养元素含量的影响。结果表明:施肥与修枝管理对闽楠幼林生长有明显的促进作用,7年生林分平均胸径、树高分别比对照提高23.03%、23.53%;且不同肥种、肥料用量以及修枝强度对幼林生长的影响效应存在显著或极显著差异,以施用芭田高塔复合肥100~125 g·株-1,修剪全树高1/4的模式最好,7年生幼林平均胸径、树高分别达4.67 cm、4.66 m,比对照提高68.12%、36.91%。不同施肥与修枝对闽楠幼林叶片氮、钾、钙、镁养分含量的影响达显著或极显著水平,而对磷含量的影响差异不显著;影响闽楠幼林生长的主要营养元素为N、K、Ca,且N—Ca、P—K、K—C存在正相关效应。综合结果表明,通过人工合理施肥、修枝可以补充或改善树体营养结构,从而提高林分产量和质量。
From 2017 to 2021,to study the effects of its growth and leaf nutrient content,L 9(34)orthogonal test of different fertilizer types,fertilizer dosage and pruning intensities was conducted in a 3-year-old stand of Phoebe bournei in Qiandun Work Area,Qiandun Village,Lanxia Township,Shunchang County,Fujian Province.The results showed that fertilization and pruning management have obvious promoting effect on Phoebe bournei young plantation growth,breast diameter and tree height of 7-year-old respectively were 23.03%and 23.53%higher than the control.The effects of different fertilizer types,fertilizer amount and pruning intensity on the growth of young forest were significantly or extremely significantly differences.The growth promoting effect of pruning 1/4 height of young trees with compound fertilizer Batian Gaota of 100~125 g·tree-1 was the best,whose average breast diameter and tree height of P.bournei were reaching 4.67 cm and 4.66 m respectively after implementation,they were 68.12%and 36.91%higher than the average.The effects of different fertilization and pruning on the nutrient contents of nitrogen,potassium,calcium and magnesium in the leaves of young Phoebe bournei were significant or extremely significant,but the effects on the content of phosphorus were not significant.The main nutrient elements affecting the growth of Phoebe bournei young forest were N,K and Ca,and N—Ca,P—K and K—C had positive correlation effects.Through artificial fertilization and pruning,the tree nutrition structure can be supplemented or improved,so as to improve the yield and quality of the stand.
作者
黄宇
林智勇
张娟
张天宇
汤行昊
吴俊杰
范辉华
HUANG Yu;LIN Zhiyong;ZHANG Juan;ZHANG T ianyu;TANG Xinghao;WU JUNJie;FAN Huihua(Fujian Academy of Forestry,Fuzhou 350012,Fujian,China;Shunchang County Forestry Science and Technology Center,Shunchang,Shunchang 353200,Fujian,China)
出处
《福建林业科技》
2023年第1期31-35,共5页
Journal of Fujian Forestry Science and Technology
基金
福建省科技厅省属公益类科研院所基本科研专项(杉松林下闽楠高效培育关键技术研究,2022R1010003
闽楠不同规格容器苗造林效果研究,2016R1010-2)
福建省林业科学推广项目(闽楠高效培育技术推广示范,2022TG12)
国家重点研发计划重点专项课题(楠木、樟树等珍贵树种定向培育技术集成与示范,2017YFD0601102)子课题(闽楠等珍贵树种定向培育技术集成与示范)
南方山地用材林培育国家林业和草原局重点实验室资助。
关键词
闽楠
施肥
修枝
生长性状
叶片养分
Phoebe bournei
fertilization
pruning
growth traits
leaf nutrition
作者简介
第一作者:黄宇(1984-),女,福建省林业科学研究院高级工程师,博士,从事森林培育、中药材GAP与林木种苗研究。E-mail:huangyu_198404@163.com。;通信作者:范辉华(1963-),男,福建省林业科学研究院教授级高级工程师,从事森林培育与林木遗传育种研究。E-mail:jofhh@163.com。
