Pre-flooding soil used in monocropping increased strawberry biomass and altered bacterial community composition

文献类型： 外文期刊

第一作者： Wang, Qingfeng

作者： Wang, Qingfeng;Chu, Changbin;Zhao, Zheng;Wu, Shuhang;Zhou, Deping

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关键词： Strawberry; bacterial composition; monocropped soil; pre-flooding treatment

期刊名称：SOIL SCIENCE AND PLANT NUTRITION （ 影响因子：2.389； 五年影响因子：2.525 ）

ISSN： 0038-0768

年卷期：

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收录情况： SCI

摘要： Continuous monocropping degrades soil physicochemical properties, leads to the accumulation of toxic compounds and changes soil microbial community composition. Pre-flooding the soil is a promising strategy to improve its productivity; however, little is known about the underlying mechanisms. Here, strawberry (Fragaria x ananassa) pot experiments were conducted with soil that had been used for continuous monocropping. The treatments were pre-flooding alone, with rice straw added and with rice straw plus a biofertilizer (mainly contained Bacillus velezensis) amendment, and the impacts of the treatments on soil physicochemical properties, bacterial diversity and composition and the integrated plant-soil-microbe responses were tracked. The strawberry biomass significantly increased after pre-flooding treatments. Pre-flooding increased the soil pH and the available P and K concentrations, while it decreased soil electrical conductivity. The bacterial diversity and abundance significantly increased after pre-flooding treatments. A Mantel test showed that soil pH and salinity were the two most important factors in shaping bacterial composition, but they exerted opposite effects. The increased strawberry biomass after pre-flooding was significantly correlated with bacterial composition and soil salinity in long-term continuous strawberry monocropping systems.

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