紫阳县双坪村9处茶园土壤主要养分分析  

Analysis of Major Soil Nutrients in Nine Tea Plantations in Shuangping Village,Ziyang County,China

作　　者：齐玉岗 苏昕婷 常权记 QI Yugang;SU Xinting;CHANG Quanji(School of Modern Agriculture and Biotechnology,Ankang University,Ankang,Shaanxi 725000,China;Shaanxi Tea Key Lab Co-sponsored by Shaanxi Province and Ankang Municipality,Ankang,Shaanxi 725000,China)

机构地区：[1]安康学院现代农业与生物科技学院,陕西安康725000 [2]陕西省茶叶省市共建重点实验室,陕西安康725000

出　　处：《陕西农业科学》2023年第12期73-78,共6页Shaanxi Journal of Agricultural Sciences

基　　金：陕西省科技厅资助[2019SZS-13(1)]。

摘　　要：通过对陕西省紫阳县双坪村具有代表性的9处茶园土壤样品的主要养分状况分析,为茶园土壤改良、茶叶优质生产提供实践指导。试验采集9处茶园土壤样品,通过对其pH值、有机质、有效氮、有效磷和有效钾含量的测定,分析了土壤养分状况变化及指标间的相关性。结果表明,双坪村9处茶园土壤中,有7处茶园有机质含量达到高产优质茶园标准,平均含量为23.14 g/kg;pH值范围5.00~6.21,基本符合高产优质茶园要求。有效氮、有效磷、有效钾变异系数大,整体数值较低。各茶园中,有效氮含量均未达到高产优质茶园标准;有效磷含量有5处达到高产优质茶园标准;有效钾含量有1处达到高产优质茶园标准。pH值与有效氮含量呈显著负相关;有机质含量与有效氮含量呈显著的正相关;有效磷含量与有效氮含量之间呈极显著正相关。因此,双坪村茶园应推广平衡施肥技术,改善土壤养分状况,为维护茶树良好生态环境并促进茶叶优质生产提供优良的土壤养分基础。An analysis of the main nutrient content in nine representative soil samples collected from tea plantations in Shuangping Village,Ziyang County,Shaanxi Province,was conducted to provide practical guidance for soil improvement and tea quality enhancement.Soil samples were collected from these plantations,and various parameters,including soil pH,organic matter,alkaline decomposition nitrogen,available phosphorus content and available potassium content were determined.The correlations between soil nutrient situation and its indicators were analyzed.The results showed that,among the nine tea plantation soils in Shuangping Village,seven tea plantations met high-yield and quality standards for organic matter content,with an average content of 23.14 g/kg;The pH value ranged from 5.00 to 6.21,which generally complied with the requirements for high yield and quality tea cultivation.However,the coefficients of variation for alkaline dissolved nitrogen,fast-acting phosphorus and effective potassium were high,with overall low values.None of the tea plantations met the high-yield and quality standards for alkaline nitrogen content,while five places met the standards for fast-acting phosphorus content,and only one place met the standards for fast-acting potassium content.A significant negative correlation was observed between pH and alkaline nitrogen content;a significant positive correlation between organic matter content and alkaline nitrogen content;and a highly significantly positive correlation between effective phosphorus content and alkaline nitrogen content.Therefore,it is recommended to promote balanced fertilization techniques in tea plantation in Shuangping Village to improve soil nutrient status,thereby providing a solid foundation for maintaining a healthy ecological environment for tea plants and enhancing tea quality.

关 键 词：双坪村 茶园 土壤 主要养分 

分 类 号：S571.1[农业科学—茶叶生产加工] S153[农业科学—作物学]