Abstract：
Due to the rapid development of animal husbandry, the associated environmental problems cannot be ignored, with the management of livestock and poultry manure emerging as the most prominent issue. Composting technology has been widely used in livestock and poultry manure management. A deeper understanding of the nitrogen conversion process during composting offers a theoretical foundation for selecting compost substrates. In this study, the effects of sawdust (CK) and spent mushroom compost (T1) as auxiliary materials on nitrogen as well as microbial structure in the composting process when composted with chicken manure were investigated. At the end of composting, the nitrogen loss of T1 was reduced by 17.18% relative to CK. When used as a compost substrate, spent mushroom compost accelerates the succession of microbial communities within the compost pile and alters the core microbial communities within the microbial community. Bacterial genera capable of cellulose degradation (Fibrobacter, Herbinix) are new core microorganisms that influence the assimilation of nitrate reduction during compost maturation. Using spent mushroom compost as a composting substrate increased the enzyme activity of nitrogen assimilation while decreasing the enzyme activity of the denitrification pathway.
摘要：
由于畜牧业的快速发展,相关的环境问题不容忽视，随着畜禽粪便管理成为最突出的问题。堆肥技术已广泛应用于畜禽粪便管理。对堆肥过程中氮转化过程的深入了解为选择堆肥基质提供了理论基础。在这项研究中,研究了木屑（CK）和废蘑菇堆肥（T1）作为辅助材料对鸡粪堆肥过程中氮和微生物结构的影响。堆肥结束时，相对于CK，T1的氮损失减少了17.18％。当用作堆肥基质时，用过的蘑菇堆肥加速了堆肥堆中微生物群落的演替，并改变了微生物群落中的核心微生物群落。能够降解纤维素的细菌属(纤维杆菌，Herbinix）是新的核心微生物，会影响堆肥成熟过程中硝酸盐还原的同化。使用废蘑菇堆肥作为堆肥底物增加了氮同化的酶活性，同时降低了反硝化途径的酶活性。
