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Response of soil microbial community to application of biochar in cotton soils with different continuous cropping years

文献类型： 外文期刊

作者： Han, Guangming 1 ; Lan, Jiayang 1 ; Chen, Quanqiu 1 ; Yu, Cui 1 ; Bie, Shu 1 ;

作者机构： 1.Hubei Acad Agr Sci, Ind Crops Inst, Key Lab Cotton Biol & Breeding Middle Reaches Cha, Wuhan 430064, Hubei, Peoples R China

期刊名称：SCIENTIFIC REPORTS （ 影响因子：4.379； 五年影响因子：5.133 ）

ISSN： 2045-2322

年卷期： 2017 年 7 卷

页码：

收录情况： SCI

摘要： The bacterial community in soils of cotton that have continuously been cropped for 2 years, 6 years, 11 years and 14 years and treated with biochar (B0, 0 t.ha(-1); B1, 12.5 t.ha(-1); and B2, 20 t.ha(-1)) was investigated using next-generation sequencing. Of the 45 bacterial genera (relative abundance ratio of genera greater than 0.3%), 21 genera were affected (p < 0.05) by the biochar treatment, whereas 20 genera were affected by the continuous cropping. Between the soils that have been continuously cropped for 2 years and 14 years, 12 different genera were significantly observed (p < 0.05), and 6 genera belonged to the phylum Acidobacteria. The relative abundance of Sphingomonas and Pseudomonas in the biochar-treated soils was significantly higher than that in the soil without biochar treatment (p < 0.05), and the relative abundance of Sphingomonas and Pseudomonas in soils that have been continuously cropped for 2 years and 6 years was significantly higher than that in the soils continuously cropped for 11 years and 14 years (p < 0.05). The results suggest that the biochar application has a significant impact on the soil bacterial community, which may improve the microbial diversity of continuous cropping systems in cotton soils.

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