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茶叶科学 ›› 2003, Vol. 23 ›› Issue (s1): 27-33.doi: 10.13305/j.cnki.jts.2003.s1.006

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茶园土壤硫素状况及对硫的吸附特性

韩文炎, 石元值, 马立峰, 阮建云, 许允文   

  1. 中国农科院茶叶研究所, 浙江 杭州 310008
  • 出版日期:2003-12-25 发布日期:2019-09-16
  • 作者简介:韩文炎(1963- ),男,浙江嵊州人,副研究员,主要从事茶树生理和营养研究。
  • 基金资助:
    农业部留学回国人员择优资助项目和国际硫肥研究所资助项目内容之一

Sulphur Status and Its Adsorbing Characteristic in Soils of Tea Garden

HAN Wen-yan, SHI Yuan-zhi, MA Li-feng, RUAN Jian-yun, XU Yun-wen   

  1. Tea Research Institute, Chinese Academy of Agricultural Sciences. Hangzhou 310008, China
  • Online:2003-12-25 Published:2019-09-16

摘要: 对江浙皖三省茶园土壤硫含量及其影响因子,土壤对硫的吸附固定特性等的研究表明,茶园土壤有效硫含量在5.4—250.7βmg/kg之间,平均为54.1βmg/kg,以浙江最高,江苏次之,安徽最低;土壤全硫量在24-453βmg/kg之间,平均为190.5βmg/kg;土壤有效硫占全硫的比例在1.38%-69.1%之间,平均为17.2%。土壤有效硫含量与全硫含量呈极显著正相关,与土壤有机质含量、pH值、成土母质和茶叶产量等均有明显的关系。茶园土壤有效硫含量在过去十年中有较大幅度的降低,平均降幅达32.8%;缺硫土壤的比例也相应由31.2%提高到了46.1%。土壤对硫的吸附固定能力因施硫量和成土母质不同而异,随着施硫量的增加,土壤对SO42-的吸附能力逐渐减弱;成土母质间比较表现为第四纪红土>鞍山斑岩>溪流冲积物>红砂岩,加入到土壤中的硫素养分平均有29.9%被吸附固定。

关键词: 茶园, 土壤, 硫, 影响因子, 吸附特性

Abstract: The S contents in tea soils sampled from Zhejiang, Anhui and Jiangsu provinces, its influencing factors and adsorbing characteristics were investigated. The results showed that the available S content in tea soils ranged from 5.4 to 250.7βmg/kg with the average of 54.1βmg/kg. Among the three provinces studied, Zhejiang was the highest and Anhui the lowest. The whole S content was 24-453βmg/kg with 190.5βmg/kg on average. The ratio of available S to whole S was between 1.38% and 69.1% with average of 17.2%. The available S content was of significantly positive correlation to the whole S content, and also closely related with organic matter, pH, parental material and tea productivity, etc. The content of available S decreased by 32.8% in the last decade, resulting in the number of soil with available S content less than 40βmg/kg increased from 31.2% to 46.1%. The capacity of soil adsorption to SO42- varied with the quantities of S applied and its parental materials. The more the S fertilizer added to soils, the less proportion of added S adsorbed. The quaternary red clay showed the highest capacity to adsorb SO42-, about 53.8% of S added was adsorbed, followed by soils derived from slate and rivulet sediment, almost no adsorption to SO42- was observed in red sand soil derived from tertiary red sandstone.

Key words: Tea, Soil, Sulphur, Influencing factors, Adsorbing characteristic

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