| 牛明芬,郭文静,袁露,宋俏博,何林科,迟光宇,马建.不同腐殖强化剂对牛粪秸秆堆肥腐殖化进程的影响[J].农业环境科学学报,2025,44(12):3241-3250. |
| 不同腐殖强化剂对牛粪秸秆堆肥腐殖化进程的影响 |
| Effects of different humus enhancers on humification process of cattle manure compost |
| 投稿时间：2025-03-04 |
| DOI：10.11654/jaes.2025-0210 |
| 中文关键词: Fe2（SO4）3 MnO2 腐殖强化剂 腐殖化 红外光谱 |
| 英文关键词: Fe2(SO4)3 MnO2 humus enhancer humification infrared spectrum |
| 基金项目:国家重点研发计划项目（2023YFD1501200）；沈阳市科技计划项目（23-409-2-02） |
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| 中文摘要: |
| 为明确不同腐殖强化剂对牛粪和玉米秸秆堆肥腐殖化进程的影响，分别以 Fe2（SO4）3和 MnO2作为腐殖强化剂，进行好氧堆肥实验，对堆肥过程中的干物质留存率、氮素指标等常规堆肥指标和腐殖化指标及微生物群落结构进行了测定。实验结果表明：添加Fe2（SO4）3处理组的干物质留存率和腐殖化程度最高，与对照组和添加MnO2处理组相比，胡敏酸含量分别增加了11.7 g·kg-1和10.9 g·kg-1。MnO2处理组的种子发芽指数（GI）最高，达到202%。降低堆肥先期的细菌活动强度、促进富里酸向胡敏酸转化是Fe2（SO4）3促进高纤维物料堆肥腐殖化的主要机制；MnO2通过共同提高堆肥先期细菌和后期真菌的多样性，增强了微生物的呼吸作用，使堆肥干物质留存率降低。 |
| 英文摘要: |
| To investigate the effects of different humification enhancers on the humification process during composting of cattle manure and corn straw, Fe2（SO4）3 and MnO2 were respectively used as humification agents in aerobic composting experiments. Throughout the composting process, conventional parameters—including dry matter retention rate and nitrogen indices—as well as humification indices and microbial community structure were systematically monitored. The experimental results showed that the treatment group with added Fe2（SO4）3 achieved the highest dry matter retention rate and degree of humification. Compared with the control group and the MnO 2 treatment group, the content of humic acid increased by 11.7 g · kg-1 and 10.9 g · kg-1, respectively. The MnO2-treated group achieved the highest seed germination index（GI）, reaching 202%. The primary mechanism by which Fe2（SO4）3 enhanced humification of high-fiber compost materials was through the suppression of bacterial activity during the early composting phase, thereby promoting the transformation of fulvic acid into humic acid. In contrast, MnO2 enhanced microbial respiration by increasing the diversity of bacteria in the early stage and fungi in the later stage, which led to greater degradation and a subsequent reduction in dry matter retention. |
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