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Chinese Agricultural Science Bulletin ›› 2018, Vol. 34 ›› Issue (6): 60-64.doi: 10.11924/j.issn.1000-6850.casb17080062

Special Issue: 园艺

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Effects of Chemical Fertilizer Reducing on Yield and Quality of Tea‘Qiancha 1’

龙毅,,, and   

  • Received:2017-08-15 Revised:2018-02-05 Accepted:2017-10-25 Online:2018-02-26 Published:2018-02-26

Abstract: To save fertilizer and improve fertilizer efficiency in tea garden, a field test was conducted to study the effects of five fertilization practices on tea yield and quality in tea plant cultivar ‘Qiancha 1’. Five fertilization modes include no fertilizer (CK), base fertilizer (organic-inorganic fertilizer for tea plant)+ topdressing+ broadcast (T1), base fertilizer (organic-inorganic fertilizer for tea plant)+ topdressing+ furrow (T2) (reduce 20.0% chemical fertilizer), base fertilizer (Jinzhengda controlled-release fertilizer+ oil cake)+ topdressing+ furrow (T3) (reduce 35.3% chemical fertilizer), and base fertilizer (ENTEC compound fertilizer+ oil cake)+ topdressing+ furrow (T4) (reduce 36.2% chemical fertilizer). The results showed that the significant differences of yield and quality among CK, T1, T2, T3 and T4 were observed, and the worst effects were observed in CK. Compared to the T1, the yield of T2, T3 and T4 increased 6.9%, 21.1% and 15.1%, respectively. The correlation analyses indicated that reducing the amount of chemical fertilizer had high negative correlations with yield of spring tea, budding density, weight per 100 buds and caffeine content, moderate negative correlations with tea polyphenols content, while low positive correlations with water extracts and free amino acids content, but low negative correlations with ratio of tea polyphenols to free amino acids. The results of this study indicate that fertilizer furrow is better than broadcast in tea garden, while the application of novel fertilizer mixed with manure contributes more to saving fertilizer and improving fertilizer efficiency.

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