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Effects of biochar amendment and organic fertilizer on microbial communities in the rhizosphere soil of wheat in Yellow River Delta saline-alkaline soil

文献类型： 外文期刊

作者： Li, Meng 1 ; Chen, Chuanjie 1 ; Zhang, Haiyang 1 ; Wang, Zongshuai 2 ; Song, Ningning 3 ; Li, Junlin 1 ; Liang, Xiaoyan 1 ; Yi, Kuihua 1 ; Gu, Yinyu 1 ; Guo, Xiaohong 4 ;

作者机构： 1.Shandong Acad Agr Sci, Shandong Inst Sericulture, Yantai, Peoples R China

2.Shandong Acad Agr Sci, Crop Res Inst, Jinan, Peoples R China

3.Qingdao Agr Univ, Sch Resources & Environm, Qingdao, Peoples R China

4.Ludong Univ, Sch Resources & Environm Engn, Yantai, Peoples R China

关键词： biochar; organic fertilizer; microbial communities; wheat; saline-alkali soil

期刊名称：FRONTIERS IN MICROBIOLOGY （ 影响因子：5.2； 五年影响因子：6.2 ）

ISSN：

年卷期： 2023 年 14 卷

页码：

收录情况： SCI

摘要： The biochar and organic fertilizer amendment have been used as an effective practice to increase soil fertility. Nevertheless, the mechanisms of microbial community response to organic fertilizer and biochar application on saline-alkali soil have not been clarified. This study investigated the effects at different concentrations of organic fertilizer and biochar on the microbial community of wheat rhizosphere soil under field experiment in the Yellow River Delta (China, YRD), using high-throughput sequencing technology. Biochar and organic fertilizer significantly influenced in most soil parameters (p < 0.05), apart from soil moisture content (M), pH, total nitrogen (TN) and soil total phosphorus (TP). Proteobacteria and Actinobacteriota were found in the rhizosphere soil as the main bacterial phyla, and the main fungal phyla were Ascomycota and Mortierellomycota. The soil bacterial and fungal communities under organic fertilizer were distinct from CK. Furthermore, redundancy analysis (RDA) directed that changes in bacterial communities were related to soil properties like pH, available phosphorus (AP), and total organic carbon (TOC), while pH, AP and TP, were crucial contributors in regulating fungal distribution. The correlation between soil parameters and bacteria or fungi varied with the application of biochar and organic fertilizers, and the interaction between the bacteria and fungi in organic fertilizer treatments formed more connections compared with biochar treatments. Our results indicated that biochar was superior to organic fertilizer under the contents set up in this study, and soil parameters increased with biochar and organic fertilizer application rate. The diversity and structure of soil bacteria and fungi differed with the application of biochar and organic fertilizer. The research provides a reference to rational application of organic fertilizer and biochar improvement in saline-alkali soil.

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