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Short-term effect of manure and straw application on bacterial and fungal community compositions and abundances in an acidic paddy soil

文献类型： 外文期刊

作者： Liu, Haiyang 1 ; Xu, Wei 1 ; Li, Jiangye 3 ; Yu, Zhuyun 4 ; Zeng, Quanchao 1 ; Tan, Wenfeng 1 ; Mi, Wentian 5 ;

作者机构： 1.Huazhong Agr Univ, Coll Resources & Environm, Key Lab Hort Plant Biol, Minist Educ, Wuhan 430070, Peoples R China

2.State Environm Protect Key Lab Soil Hlth & Green, Wuhan 430070, Peoples R China

3.Jiangsu Acad Agr Sci, Inst Resources & Environm, Nanjing 210014, Peoples R China

4.Hengshui Univ, Hebei Prov Key Lab Wetland Ecol & Conservat, Hengshui 053000, Peoples R China

5.Inner Mongolia Univ Technol, Sch Mines, Hohhot 010051, Peoples R China

关键词： Chemical fertilizer; Manure; Rice straw; Bacteria; Fungi

期刊名称：JOURNAL OF SOILS AND SEDIMENTS （ 影响因子：3.308； 五年影响因子：3.587 ）

ISSN： 1439-0108

年卷期： 2021 年 21 卷 9 期

页码：

收录情况： SCI

摘要： Purpose The application of organic fertilizers such as crop straw and manure is a feasible practice to alleviate the adverse effects caused by chemical fertilizers, and such alleviation is reflected mainly on soil microorganisms. However, our understanding of the short-term impacts of different organic materials combined with chemical fertilizer on soil fertility, bacterial and fungal abundances, and community compositions is limited. Methods An acidic paddy field experiment in South China under three short-term fertilization regimes with equal amounts of inorganic fertilizers: chemical fertilizer (NPK), chemical fertilizer combined with cattle manure (NPKM), and chemical fertilizer combined with rice straw (NPKS) were investigated. Soil chemical properties were measured to analyze the effects of fertilization regimes on soil nutrients. Real-time quantitative PCR and MiSeq sequencing based on bacterial 16S rRNA gene and fungal internal transcribed spacer (ITS) sequence were employed to compare the bacterial and fungal abundances and community compositions under different fertilization regimes. Results The NPKM treatment significantly increased soil organic matter, nitrogen, and phosphorus contents compared with the NPK treatment. Also, manure application stimulated bacterial and fungal growth and distinctly shaped bacterial and fungal communities compared with chemical fertilizer alone. However, the incorporation of rice straw into soil had minor effects on soil nutrients, microbial abundance, and community composition. Redundancy analysis and variation partitioning analysis indicated that soil nutrients (e.g., SOM, available N, and P) and salinity (e.g., calcium and magnesium ions) together influenced soil bacterial and fungal communities. Conclusion These results implicated a more prominent role of manure than rice straw in increasing soil fertility, bacterial and fungal abundances, and shaping microbial community distributions in this acidic paddy soil under short-term fertilization.

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