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| Research on production technology of organic fertilizer from Chinese medicinal herbal residues |
| Hits 426 Download times 568 Received:February 15, 2023 |
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| DOI
10.11656/j.issn.1673-9043.2023.03.15 |
| Key Words
Chinese medicinal herbal residue;orthogonal experiment;composting parameter;compound bacteria |
| Author Name | Affiliation | E-mail | | XU Qiushuang | Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China | | | JIANG Lin | Center of Rehabilitation and Recuperation in Tianjin, Joint Service Support Force of Chinese People's Liberation Army, Tianjin 300191, China | | | REN Lili | Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China | | | AN Nana | Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China | | | BAI Yuchao | Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China | | | LI Tianxiang | Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China | litianxiang612@sina.com |
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| Abstract
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| [Objective] To investigate and establish an efficient and rapid fermentation of traditional Chinese medicinal(TCM) herbal residues to prepare organic fertilizer production technology and determine appropriate fermentation conditions. [Methods] Taking intermittent dynamic aerobic fermentation method,using temperature,organic matter,nitrogen,phosphorus and potassium as quality evaluation indicators,single factor investigation of water content,carbon-nitrogen ratio,turnover frequency and suitable bacteria,screening out the optimal fermentation conditions and the best compound bacterial agent combination;design orthogonal experiment,based on the change of cellulose and lignin content,determine the best fermentation production technology of Chinese herb residues. [Results] Three suitable starters for organic fertilizer were selected as streptomyces flavus,aspergillus niger and bacillus licheniformis,and the best combination of Chinese herb residues for high-efficiency degradation of compound strains was determined:streptomyces flavus:bacteria(bacillus licheniformis,bacillus licheniformis,bacillus subtilis):fungus(aspergillus niger,trichoderma viride)=1:2:2,the preparation cycle is 35 days,and the optimal fermentation production technology is 50% initial water content,the carbon-nitrogen ratio is 35:1,and turnover frequency is 10 days/time,and the compound inoculation amount is 1.5%,the degradation rate of cellulose in Chinese herb residues can reach 76.97%,and the degradation rate of lignin can reach 33.59%. The research results show that the primary and secondary order of influencing factors is turnover frequency>carbon-nitrogen ratio>compound bacteria addition amount>water content. [Conclusion] The composting parameters in this research are accurate and reliable,with high efficiency,effectively improving the degradation rate of Chinese herb residues,and can further expand the production and application. |
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