Biochar enhanced co-composting for peat-free seedling substrate: A win-win solution for sustainable development of modern vegetable industry

文献类型： 外文期刊

第一作者： Fan, Xiaoxia

作者： Fan, Xiaoxia;Su, Xiaoxuan;Xiao, Ran;Fan, Xiaoxia;Su, Xiaoxuan;Xiao, Ran;Wei, Yiyuan;Cheng, Shang;Song, Dan;Zhou, Ting;Li, Ronghua;Zhang, Tao

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关键词： Leafy vegetable waste management; Biochar-enhanced composting; Seedling substrate; Peat-substitution; Sustainable agriculture

期刊名称：PROCESS SAFETY AND ENVIRONMENTAL PROTECTION （ 影响因子：7.8； 五年影响因子：7.7 ）

ISSN： 0957-5820

年卷期： 2025 年 194 卷

页码：

收录情况： SCI

摘要： Vegetable waste management and the creation of peat-free seedling substrates pose significant challenges to the sustainability of the modern vegetable industry. This study investigated the use of cabbage harvest residue (CHR) as a peat substitute in substrates through biochar-enhanced co-composting with spent mushroom residue (SMS). Various biochar dosages (0 % (CK), 2.5 % (BC2.5), 5.0 % (BC5.0) and 10 % (BC10)) were tested to evaluate their effects on the composting process, quality of the end-products, and application potential as peat substitutes. Results indicated that biochar, especially at dosages of 5.0 % and 10 %, enhanced moisture loss, humification, and compost quality. The highest peak temperature (67.3 degrees C), moisture reduction (similar to 30 %), carbon loss (similar to 50 %), seed germination index (GI, 199 %), humic substance content (14.5 %), and degree of humification were observed in BC10. Additionally, biochar treatments led to improvements in the structural composition and co-occurrence relationships within the microbial community. Substrates made from compost, vermiculite, and perlite exhibited excellent physicochemical properties and superior seedling growth performance compared to commercial substrates. Notably, BC2.5 emerged as the most optimal peat substitute, demonstrating significant enhancement in shoot height (6 %-88 %), thickness (4 %-113 %), and strong seeding index (SEI) (24 %-264 %). Overall, biochar-enhanced co-composting of CHR and SMS offers a promising sustainable solution for the modern vegetable industry.

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