The impact of microbial inoculants on large-scale composting of straw and manure under natural low-temperature conditions

文献类型： 外文期刊

第一作者： Wang, Yanping

作者： Wang, Yanping;Yu, Qi;Zheng, Chuang;Wang, Yanbo;Hu, Xiaomei;Chen, Heshu;Dong, Shijia

作者机构：

关键词： Straw compost; Microbial inoculation; Lignocellulose degradation; Humic substances

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 400 卷

页码：

收录情况： SCI

摘要： Understanding large-scale composting under natural conditions is essential for improving waste management and promoting sustainable agriculture. In this study, corn straw (400 tons) and pig manure (200 tons) were composted with microbial inoculants. The thermophilic phase of composting lasted for fourteen weeks, resulting in an alkaline final product. Microbial systems with low-temperature initiation and high-temperature fermentation played a crucial role in enhancing lignocellulose degradation and humic substances (HS) formation. Adding microbes, including Rhodanobacter, Pseudomonas, and Planococcus, showed a positive correlation with degradation rates of cellulose, hemicellulose, and lignin. Bacillus, Planococcus, and Acinetobacter were positively correlated with HS formation. Microorganisms facilitated efficient hydrolysis of lignocelluloses, providing humic precursors to accelerate composting humification through phenolic protein and Maillard pathways. This study provides significant insights into large-scale composting under natural conditions, contributing to the advancement of waste management strategies and the promotion of sustainable agriculture.

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