Acta Agriculturae Zhejiangensis ›› 2023, Vol. 35 ›› Issue (8): 1844-1852.DOI: 10.3969/j.issn.1004-1524.20220956

• Environmental Science • Previous Articles     Next Articles

Effects of organic fertilizer coupled with chemical fertilizer on growth and quality of tea and soil fertility

ZHANG Ning1(), TAO Ronghao1, LIU Peishi2, HU Hanxiu1, GAO Linlin3, GUO Long1, ZHU Zunyou4, MA Youhua1,*()   

  1. 1. Anhui Province Key Lab of Farmland Ecological Conservation and Pollution Prevention, College of Resources and Environment, Anhui Agricultural University, Hefei 230036, China
    2. Anhui Qingxi Analysis Testing Co., Ltd., Hefei 231131, China
    3. Beijing Borui Environmental Engineering Co., Ltd., Beijing 102612, China
    4. Jinzhai County Agricultural Technology Extension Service Center, Jinzhai 237300, Anhui, China
  • Received:2022-06-25 Online:2023-08-25 Published:2023-08-29

Abstract:

In order to alleviate the adverse effects of long-term single application of chemical fertilizer on tea garden soil,and improve the yield and quality of tea, a field experiment was carried out in Lu’an Guapian tea garden for two consecutive years to study the effects of organic fertilizers made from rapeseed cake, straw, pig manure, cow manure, biogas residue, biomass (denoted as RCO, SO, PO, CO, BRO, BO, respectively) combined with chemical fertilizer (70% nutrient substituted by organic fertilizer)on tea growth, quality and soil fertility.The results showed that SO or PO combined with chemical fertilizer significantly (P<0.05) increased the 100-bud weight and bud density of tea as compared with the control (CK, all nutrients were input by chemical fertilizer). For chemical components of tea (tea polyphenol, free amino acid, ratio of phenol to amino acid, caffeine, aqueous extract), the highest contents were recoreded when SO or PO or BO was applied with chemical fertilizer. SO or PO application coupled with chemical fertilizer could improve soil fertility, as the nutrients contents and soil enzymes activities were elevated. Given the 2-year results, application of SO and chemical fertilizers had the best effect on promoting tea plant growth, improving tea quality and soil fertility under the experiment conditoins.

Key words: organic fertilizer, tea, Lu’an Guapian, growth, quality, soil fertility

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