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油茶苗期生物量积累及营养分配规律研究
引用本文:唐健,李娜,欧阳洁英,曹继钊,覃其云.油茶苗期生物量积累及营养分配规律研究[J].广西农业科学,2011(8):964-967.
作者姓名:唐健  李娜  欧阳洁英  曹继钊  覃其云
作者单位:广西林业科学研究院;广西国营派阳山林场;
基金项目:广西林业厅招标引进项目(桂林科字[2010]第2号)
摘    要:【目的】了解油茶苗期不同器官的生物量积累及营养元素分布情况。【方法】对150株油茶苗期的各种生长性状指标、生物量及营养元素含量进行测定。【结果】油茶苗期各单株生物量均以地上部分占绝对优势,其中叶片生物量积累最高;不同苗高分级的苗木株数及其生物量近似于正态分布,其中14.00~15.90cm的苗高分级的株数和生物量百分比最高,分别为38.67%和34.19%。在油茶根、茎、叶中均以N含量最高,其次是K和Ca,Cu和B含量最低;N、Mn含量以叶片最高,P、K及Cu、Zn、Fe、B含量均以根部最高。方差分析结果表明,N、K、Mg、Cu、Mn和B元素含量在根、茎、叶中的差异达到显著水平。【结论】油茶苗期叶片生物量积累最高,单株生物量随幼苗的生长而明显增加;不同器官对各营养元素的吸收存在显著差异,该结果可为油茶苗期施肥提供参考。

关 键 词:油茶  苗期  生物量  营养分配

Mechanism of biomass accumulation and nutrient distribution in Camellia oleifera at seedling growth stage
TANG Jian,LI Na,OUYANG Jie-ying ,CAO Ji-zhao ,QIN Qi-yun.Mechanism of biomass accumulation and nutrient distribution in Camellia oleifera at seedling growth stage[J].Guangxi Agricultural Sciences,2011(8):964-967.
Authors:TANG Jian  LI Na  OUYANG Jie-ying  CAO Ji-zhao  QIN Qi-yun
Institution:TANG Jian1,LI Na1,OUYANG Jie-ying 2,CAO Ji-zhao1 *,QIN Qi-yun1 (1 Guangxi Academy of Forestry,Nanning 530003,China,2 Guangxi State-owned Paiyangshan Forestry Farm,Nanning 532504,China)
Abstract:Objective]The present experiment was conducted to study the mechanism of biomass accumulation and distribution of nutrients in Camellia oleifera at seedling growth stage. Method]The growth indicators and biomass and nutrient contents of leaf, stem and root of 150 Camellia oleifera plants were determined at seedling growth stage. Result]The results showed higher biomass in aboveground plant parts, amongst which leaves had the highest biomass accumulation. The seedlings were grouped into various grades acc...
Keywords:Camellia oleifera  seedling  biomass  nutrient distribution  
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