贵州农业科学2025，Vol.53Issue(5)：42-48,7.DOI:10.3969/j.issn.1001-3601.2025.05.006
不同保氮剂对猪发酵床垫料有机肥堆肥发酵的影响
Effects of Different Nitrogen Retaining Agents on Composting Fermentation of Organic Fertilizer for Pig Fermented Mattress Materials
摘要
Abstract
[Objective]The changes in key nutrient contents during composting fermentation of pig fermented mattress materials treated with nitrogen retaining agents were investigated to provide a theoretical basis for their application in the production of organic fertilizer from pig fermented mattress materials.[Method]Thermophilic aerobic composting was adopted by adding three nitrogen retaining agents(ferrous sulfate,humic acid,and calcium phosphate)to pig fermented mattress materials for secondary fermentation,and then the physical-chemical index during the composting process were measured to evaluate the feasibility of these agents in optimizing compost quality.[Result]All three nitrogen retaining agents effectively extended the high-temperature phase to 5-7 days.At the end of fermentation,key parameters for treatments with ferrous sulfate,humic acid,and calcium phosphate were within ideal ranges,with pH of 6.41-6.61,electrical conductivity(EC)of 1 578.33-1 699.00 μS/cm,germination index(GI)of 87.50％-104.69％,moisture content of 28.74％-32.20％,and organic matter of 35.52％-40.82％.Ferrous sulfate treatment exhibited the longest high-temperature duration(7 days),highest GI(104.69％),and highest total nutrient content(8.91％),with all other parameters within optimal ranges.[Conclusion]Among the three nitrogen retaining agents tested,ferrous sulfate demonstrated the most effective performance in enhancing the composting process of pig fermented mattress materials.关键词
保氮剂/猪发酵床垫料/硫酸亚铁/腐殖酸/磷酸钙/二次发酵/有机肥堆肥Key words
nitrogen retaining agent/pig fermented mattress material/ferrous sulfate/humic acid/calcium phosphate/secondary fermentation/organic fertilizer compost分类
农业科技引用本文复制引用
张晶,燕志宏,周静,杨仕钰,夏婷婷,邱雪松,安延清..不同保氮剂对猪发酵床垫料有机肥堆肥发酵的影响[J].贵州农业科学,2025,53(5):42-48,7.基金项目
贵州省科技支撑计划项目"基于生猪粪污生物降解地方微生物资源的研究"(黔科合[2023]一般474) （黔科合[2023]一般474）
贵州省农业农村厅项目"农业秸秆发酵床养猪技术推广应用"(黔南科合[2023]24号) （黔南科合[2023]24号）
