Inoculating functional bacteria improved the humification process by regulating microbial networks and key genera in straw composting by adding different nitrogen sources
文献类型： 外文期刊
作者： Dong, Shijia 1 ; Wei, Yiyang 2 ; Yu, Qi 2 ; Gao, Yunfei 3 ; Chen, Heshu 3 ; Zhou, Kaiyun 4 ; Cheng, Meidi 5 ; Wang, Bo 6 ; Wei, Yuquan 4 ; Hu, Xiaomei 2 ;
作者机构： 1.Harbin Univ, Harbin 150086, Peoples R China
2.Northeast Agr Univ, Coll Life Sci, Harbin 150030, Peoples R China
3.Heilongjiang Acad Agr Sci, Harbin 150086, Peoples R China
4.China Agr Univ, Coll Resources & Environm Sci, Beijing Key Lab Biodivers & Organ Farming, Beijing 100193, Peoples R China
5.Yantai Univ, Coll Chem & Chem Engn, Yantai 264005, Peoples R China
6.Inner Mongolia Acad Agr & Anim Husb Sci, Inst Anim Nutr & Feed, Hohhot 010031, Peoples R China
关键词： Agricultural waste composting; Bioaugmentation; Humus; Lignocellulose degradation; Nitrogen sources addition
期刊名称：BIORESOURCE TECHNOLOGY （ 影响因子：11.4； 五年影响因子：10.6 ）
ISSN： 0960-8524
年卷期： 2024 年 393 卷
页码：
收录情况： SCI
摘要： The aim of this study was to compare the effect of functional inoculant and different nitrogen sources on the relationship among lignocellulose, precursors, and humus as well as their interactions with bacterial genera in straw composting. Results showed that inoculation improved the heating process and retained more nitrate compared to control. Inoculation increased the degradation of lignocellulosic components by 26.9%-81.6% and the formation of humus by 15.7%-23.0%. Bioinformatics analysis showed that inoculation enriched key genera Chryseolinea in complex nitrogen source (pig manure) compost and Pusillimas, Luteimonas, and Flavobacteria in single nitrogen source (urea) compost, which were related to humus formation. Network analysis found that inoculation and urea addition improved the microbial synergistic effect and inoculation combined with pig manure had more complex modularity and interactions. Combining the functional bacterial inoculant with urea helped to enhance the degradation of lignocellulose and humification process during straw composting especially with single nitrogen source.
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