江苏省农业科学院机构知识库

Biochar Application Alleviated Rice Salt Stress via Modifying Soil Properties and Regulating Soil Bacterial Abundance and Community Structure

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文献类型：外文期刊

作者： Huang, Jing ¹ ; Zhu, Chunquan ¹ ; Kong, Yali ¹ ; Cao, Xiaochuang ¹ ; Zhu, Lianfeng ¹ ; Zhang, Yongchun ² ; Ning, Yunwang ² ; Tian, Wenhao ¹ ; Zhang, Hui ² ; Yu, Yijun ³ ; Zhang, Junhua ¹ ;

作者机构： 1.China Natl Rice Res Inst, State Key Lab Rice Biol, Hangzhou 310006, Peoples R China

2.Jiangsu Acad Agr Sci, Nanjing 210014, Peoples R China

3.Zhejiang Cultivated Land Qual & Fertilizer Adm St, Hangzhou 310020, Peoples R China

关键词： biochar; rice; salt stress; soil properties; bacteria

期刊名称：AGRONOMY-BASEL （影响因子：3.949；五年影响因子：4.117 ）

ISSN：

年卷期： 2022 年 12 卷 2 期

页码：

收录情况： SCI

摘要： Increased soil salinity significantly inhibits crop production worldwide, and biochar may alleviate salt stress. In the present study, the application of biochar significantly increased the biomass of rice under salt stress treatment. The analysis of soil properties demonstrated that biochar application significantly decreased electrical conductivity and soluble Na+ and Cl- contents in the soil under salt stress. In addition, biochar application increased the soil cation exchange capacity, soil organic matter, humic acid, total nitrogen, and total phosphorus contents in the soil, suggesting that biochar improved the soil nutrient conditions. The application of biochar further increased the abundance of soil bacteria and changed the bacterial community structure under salt stress. Proteobacteria, Chloroflexi, and Acidobacteria were the top three phyla in bacterial abundance. Biochar increased Proteobacteria abundance and decreased Chloroflexi abundance, which were considered to be eutrophic bacteria and oligotrophic bacteria, respectively. Redundancy analysis showed that soil bacterial communities were mainly affected by soil pH and EC (p < 0.05). In conclusion, the application of biochar alleviated salt stress in rice via modifying soil properties and regulating the bacterial abundance and community structure.

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