数字农科院2.0

Impact of N application rate on tea (Camellia sinensis) growth and soil bacterial and fungi communities

文献类型： 外文期刊

作者： Tang, Sheng;Zhou, Jingjie;Pan, Wankun;Tang, Rui;Ma, Qingxu;Xu, Meng;Qi, Tong;Ma, Zhengbo;Fu, Haoran;Wu, Lianghuan

作者机构：

关键词： Bacteria;Fungi;Tea yield;Tea quality;Nitrogen fertiliser application

期刊名称： PLANT AND SOIL

ISSN： 0032-079X

年卷期： 2022 年

页码：

收录情况： SCIE（2022版）

摘要： Purpose Applying excessive N is a common strategy in tea plantations. Fungal and bacterial responses to N fertiliser addition in tea plantations, especially their relationship with tea growth, quality, and soil microbiome composition, remain unclear. Methods We performed a field experiment using different N fertiliser application rates for 5 years (2016-2020) in a tea-producing region of China. Results The N application rate of 360 kg ha(-1) y(-1) achieved the highest tea yield and quality. Bacterial diversity and community responses to N addition were more apparent than fungal diversity and community responses. Partial least square path modelling suggested that N addition directly affected the diversity and communities of bacteria and fungi and indirectly affected bacterial community and fungal diversity by altering soil contents. N fertiliser application contributed to tea growth but did not maintain high microbial diversity. Conclusion Fungal alpha and beta diversity had a greater effect on tea yield and quality than bacterial diversity; therefore, more attention should be given to fungi such as ligninolytic and cellulolytic taxa, which play a stable role in nutrient cycling and organic matter decomposition in tea plantations, favouring tea growth in the long term.

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