为了解决过磷酸钙、硫酸镁等尾矿废弃物堆积的问题，合理提升畜禽粪污堆肥的固碳减排潜力和有机肥品质，降低堆肥添加剂成本，为畜禽粪污资源化利用与可持续农业发展提供理论依据和实践参考。以羊粪和小麦秸秆为主要原料，进行为期50 d的堆肥试验，探究了过磷酸钙和硫酸镁对羊粪条垛式堆肥腐熟进程及氨气、硫化氢释放量的影响，监测了堆肥堆体温度、pH、含水率、种子发芽指数(GI)和碳氮比(C/N)等关键参数以及堆肥的氨气(NH₃)和硫化氢(H2S)气体释放速率。结果表明，添加质量分数为1%的过磷酸钙能够加快羊粪堆体升温速度，延长高温持续时间，降低堆体pH、含水率、C/N，并提高种子发芽指数，使堆肥腐熟度明显提高。同时，添加质量分数为1%的过磷酸钙，有效减少了氨气和硫化氢的释放，平均释放速率分别降低了20.84%、18.24%，显著改善了氮素保持与气态污染控制效果。综上认为，羊粪堆肥时，添加质量分数为1%的过磷酸钙，可促进堆肥物料的分解转化，加快腐熟速度，降低氨气和硫化氢的释放量。

To address the issue of tailing waste accumulation from materials such as superphosphate and magnesium sulfate, reasonably enhance the carbon sequestration and emission reduction potential as well as the quality of organic fertilizer in livestock and poultry manure composting, and to reduce the cost of compost additives, this study aimed to provide both theoretical basis and practical reference for the resource utilization of livestock and poultry manure and the sustainable development of agriculture. Using sheep manure and wheat straw as the main raw materials, a 50-day composting experiment was conducted to investigate the effects of superphosphate and magnesium sulfate on the maturity process of sheep manure windrow composting and on ammonia(NH₃) and hydrogen sulfide(H2S) emissions. Key parameters monitored included compost pile temperature, pH, moisture content, seed germination index (GI), and carbon-to-nitrogen ratio (C/N), as well as the emission rates of NH₃ and H2S. Results showed that adding 1%(w/w) superphosphate accelerated the heating rate of the compost pile, prolonged the high-temperature duration, reduced pH, moisture content, and C/N ratio, and improved the seed germination index, significantly enhancing compost maturity. Furthermore, the addition of 1% superphosphate effectively reduced the emissions of NH₃ and H2S, with the average emission rates decreasing by 20.84% and 18.24%, respectively, thereby markedly improving nitrogen retention and gaseous pollution control. In conclusion, during sheep manure composting, adding 1% superphosphate can promote the decomposition and transformation of compost materials, accelerate maturity, and reduce the emissions of ammonia and hydrogen sulfide.

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