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油茶幼林营养元素吸收及其分配特征
作者: 曹继钊  王会利  唐 健*  覃其云  农必昌  潘 波  
单位: (广西林业科学研究院/国家林业局中南速生材繁育实验室/广西优良用材林资源培育重点实验室  南宁 530002)  
关键词: 油茶  营养元素  吸收  累积  分配  
分类号:S794.4
出版年,卷(期):页码:2012 ,43 ( 6 ): 页码:802-805
摘要:

【Objective】The purpose of the study was to understand accumulation and distribution of nutrient elements in different parts of young Camellia oleifera in order to develop proper fertilization techniques for forest lands of Camellia oleifera. 【Method】The nutrient element contents of trunk,branches,leaves,taproot and lateral roots of 5.5-year old Camellia oleifera were analyzed. 【Result】The concentration of nutrients in Camellia oleifera was found in the following descending order: N>K, Ca>Mg>P>Fe and Mn>Zn>B>Cu. The order of total nutrient content in different plant parts was as follows: leaf>lateral root>branch>taproot>trunk. Total quantity of ten nutrient elements in young Camellia oleifera was recorded as 14.65 g per plant. The storage of N,K,and Ca was recorded as the highest,followed by P,Mg,Fe and Mn,and the storage of Cu,Zn and B was recorded as lowest. The order of total storage of ten nutrient elements in young Camellia oleifera was leaf>trunk>taproot>branch>lateral root. 【Conclusion】The quantity of absorption and accumulation of N,K and Ca in Camellia oleifera was recorded as the highest. The application of Ca and trace elements may be considered in fertilizing young Camellia Oleifera. There was no any proportionate relationship between distribution of nutrient elements and biomass of different plant parts. The total storage of ten nutrient elements in leaf and trunk was recorded as the highest.

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