Insights from meta-analysis on carbon to nitrogen ratios in aerobic composting of agricultural residues

文献类型： 外文期刊

第一作者： Shen, Bo

作者： Shen, Bo;Zheng, Lili;Zheng, Xiaoyan;Yang, Yang;Xiao, Dao;Ai, Binling;Shen, Bo;Wang, Yiqiang;Zheng, Lili;Zheng, Xiaoyan;Yang, Yang;Xiao, Dao;Ai, Binling;Wang, Yiqiang;Sheng, Zhanwu

作者机构：

关键词： Maturity indices; Seed germination index; Composting duration; Ratio of final to initial C/N; Natural logarithm of response ratio

期刊名称：BIORESOURCE TECHNOLOGY （ 影响因子：9.0； 五年影响因子：9.5 ）

ISSN： 0960-8524

年卷期： 2024 年 413 卷

页码：

收录情况： SCI

摘要： Given the heterogeneity of raw materials, the diversity of composting processes, and the complexity of biological transformations, systematically exploring the critical role of the initial carbon-to-nitrogen (C/N) ratio in the aerobic composting of agricultural residues is challenging within a single experimental study. This study employs meta-analysis to investigate this role. Statistical analysis of 192 scholarly articles confirmed that most studies adhere to the recommended optimal initial C/N range of 25 and 30, where enhanced compost maturity and nutrient accumulation are observed. The findings indicate that optimal initial C/N ratios vary by agricultural residue type. A C/N ratio of 20 to 30 facilitates controlling the composting duration within 45 days, while a C/N ratio of 30 to 35 necessitates extending the duration beyond 45 days. The study highlights the effectiveness of adjusting the C/N ratio and applying microbial inoculants and physical amendments to optimize composting outcomes and control the composting duration.

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