杭州余杭径山茶园土壤养分状况及肥力质量评价
Soil Nutrient Status and Fertility Quality Evaluation of Jingshan Tea Garden in Yuhang District of Hangzhou City
庞英华 1顾万帆 1金鑫 1张舟娜 2金雅慧 3郑洪福1
作者信息
- 1. 杭州市余杭区农民素质教育服务总站,杭州 311115
- 2. 杭州市余杭区农业生态与植物保护服务站,杭州 311121
- 3. 杭州市余杭区农产品质量安全检验检测站,杭州 311115
- 折叠
摘要
深入了解余杭区茶园土壤养分状况与肥力水平,可为该区径山茶园土壤改良、精准施肥以及优质径山茶叶生产提供科学依据.本研究对余杭区径山茶园面积集中的7个镇街进行实地调查和布点采样,采集并分析了 36个样点径山茶园土壤,检测6个肥力指标,既土壤pH、有机质、全氮、碱解氮、有效磷和速效钾含量,并采用主成分分析法和模糊数学隶属度函数模型,通过计算土壤肥力综合指数(IFI),对余杭区土壤养分状况进行数值化综合评价.结果表明:余杭径山茶园土壤有酸化趋势;茶园土壤有机质、全氮、碱解氮、有效磷、速效钾含量整体丰富,平均值均达到I级优质标准;91.7％的径山茶园土壤肥力综合指数IFI达到Ⅰ级优质标准,8.3％达到Ⅱ级标准,余杭径山茶园土壤适宜种植径山茶树.
Abstract
In-depth understanding of soil nutrient status and fertility level of tea gardens in Yuhang District can provide scientific basis for soil improvement,precise fertilization and high quality of Jingshan tea production.In this study,the authors carried out field investigation and distribution sampling in 7 towns where Jingshan tea plantation area were concentrated in Yuhang district,collected and analyzed 36 soil samples of Jingshan tea gardens,tested 6 soil fertility indexes including soil pH,organic matter,total nitrogen,alkali-hydrolyzed nitrogen,available phosphorus and available potassium content,then using principal component analysis method and fuzzy mathematics membership function model to carry out numerical comprehensive evaluation of soil nutrient status by calculating the comprehensive index of soil fertility(IFI)in Yuhang district.The results showed that the soil of Jingshan tea gardens had acidification tendency;the contents of organic matter,total nitrogen,alkali-hydrolyzed nitrogen,available phosphorus and available potassium in the soil of tea gardens were abundant,and the average contents reached the Grade Ⅰ quality standard;91.7％of the comprehensive soil fertility index of Jingshan tea gardens reached the Grade Ⅰ quality standard,and 8.3％reached the Grade Ⅱ standard,indicating that the soil of Jingshan tea gardens are suitable for planting Jingshan camellia trees.
关键词
径山茶园/土壤养分/肥力综合指数/质量评价Key words
Jingshan tea gardens/soil nutrient/comprehensive index of fertility/quality evaluation引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据