Insights from meta-analysis on carbon to nitrogen ratios in aerobic composting of agricultural residues
文献类型： 外文期刊
作者： Shen, Bo 1 ; Zheng, Lili 1 ; Zheng, Xiaoyan 1 ; Yang, Yang 1 ; Xiao, Dao 1 ; Wang, Yiqiang 2 ; Sheng, Zhanwu 5 ; Ai, Binling 1 ;
作者机构： 1.Chinese Acad Trop Agr Sci, Inst Trop Biosci & Biotechnol, Haikou 571101, Hainan, Peoples R China
2.Cent South Univ Forestry & Technol, Yuelushan Lab Carbon Sinks Forests Variety Innovat, Changsha 510004, Hunan, Peoples R China
3.Haikou Key Lab Banana Biol, Haikou 571101, Hainan, Peoples R China
4.Cent South Univ Forestry & Technol, Key Lab Forestry Biotechnol Hunan Prov, Changsha 510004, Hunan, Peoples R China
5.Chinese Acad Trop Agr Sci, Agr Prod Proc Res Inst, Zhanjiang 524001, Guangdong, Peoples R China
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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