外源热友生物控制剂注射剂对高温肥堆肥的作用
Zuojun Liu1, Qiang Yin1, Yong Fang1
1Agriculture Mechanization and Engineering Research Institute, Anhui Academy of Agricultural Sciences, Hefei, China.
Frontiers in microbiology
|December 3, 2024
概括
将残留物和微生物添加到肥堆肥中,可以显著提高营养含量和效率. 这种方法加速加热,延长热友性阶段,并通过促进有益的微生物活动来提高产品质量.
科学领域:
- 环境微生物学 环境微生物学
- 废物管理 废物管理
- 生物技术是生物技术.
背景情况:
- 肥的有氧堆肥是有效的,但受到低碳对 (C/N) 比率的限制,导致加热缓慢和效率降低.
- 在肥堆肥中,低温和短时间的高温阶段对产品质量和营养保持有负面影响.
研究的目的:
- 调查添加培养残留物和外源热友菌株对肥堆肥的影响.
- 在高温堆肥过程中分析物理化学代谢物和微生物群体结构之间的关系.
主要方法:
- 添加种植残留物,以调整C/N比率.
- 引入外源热友化堆肥菌株以提高温度.
- 超基因组和物理化学分析以追踪微生物群落和代谢物变化.
主要成果:
- 外源微生物剂使热友性阶段延长了三倍,并将加热阶段减少了75%.
- (3.61%), (21.63%), (7.21%) 和可溶性有机碳 (39.03%) 的含量显著增加.
- 特定的微生物属 (例如, *Bacillus*, *Caldicoprobacter*) 与代谢产物呈正相关性,而其他属则呈反相关性. 油酸和piperidine代谢途径被上调,产生增强微生物活力的保护剂.
结论:
- 优化C/N比率和引入热友菌株显著提高了肥堆肥效率和产品质量.
- 微生物社区结构和代谢途径,特别是氨基酸和三碳酸循环,对于热友堆肥至关重要.
- 功能性微生物产生的热稳定剂是维持高温堆肥过程中生存能力和效率的关键.
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