Journal of Zhejiang Agricultural Sciences ›› 2025, Vol. 66 ›› Issue (2): 321-328.DOI: 10.16178/j.issn.0528-9017.20231049

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Evaluation of soil nutrients and fertility quality in tea plantations in Fuyang District, Hangzhou City

SHAO Sainan1(), YANG Qing1, ZHANG Haijuan1, DONG Daixing1, MENG Qingjiu1, WEN Junqing1, JIANG Huaqin1, QIAN Yi2, JIANG Yugen1,*()   

  1. 1. Fuyang Centre for Agri-cultural Technology Extension of Hangzhou City, Hangzhou 311400, Zhejiang
    2. Yinhu Office of Fuyang District People's Government, Hangzhou City, Hangzhou 311402, Zhejiang
  • Received:2023-10-31 Online:2025-02-11 Published:2025-03-24

Abstract:

Tea industry is one of the leading industries of agricultural in Fuyang District, and the analysis and evaluation of soil nutrients, fertility quality and land transfer value of tea plantations can provide more scientific data support for guiding fertilization and land transfer of tea plantations in Fuyang District. In this study, 205 soil samples were collected from 22 towns and districts in Fuyang District to analyze 9 soil nutrients including pH value, organic matter, total nitrogen and other soil indicators that affect tea yield and quality. The fuzzy mathematical membership function model was used to calculate the comprehensive index of soil fertility (IFI), and a comprehensive analysis was made on soil nutrients, fertility quality and land transfer value in Fuyang District. The results showed that the pH value of tea plantation soil in Fuyang District was 3.06-5.99. The average nutrient classification of six soil nutrients including soil organic matter(SOM), total nitrogen(TN), available phosphorus(AP), available potassium(AK), available zinc(AZn) and available copper(ACu) was above level Ⅰ, and the average nutrient classification of two indicators including available sulfur(AS) and exchangeable magnesium(EMg) was within level Ⅱ. The comprehensive index of soil fertility was 0.208-0.880, with 19.02% of tea plantations reaching level Ⅰ standard, 18.54% reaching level Ⅱ standard, and 62.44% reaching level Ⅲ-Ⅳ standard. The land value grade of tea gardens in each town in Fuyang District was as follows: level Ⅰ accounted for 40.49%, level Ⅱ-Ⅲ accounted for 31.22%, and level Ⅳ accounted for 28.29%. The results showed that most tea plantations in Fuyang District were suitable for tea tree growth, but some tea gardens had serious soil acidification problems. The SOM, TN, AP, AK, AZn and ACu contents were rich, while the AS and EMg contents were relatively insufficient, which requires targeted adjustment to the existing fertilization plan.

Key words: tea plantation soil, nutrient analysis, fertility evaluation, land transfer

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