摘要
为优化羊粪高效堆肥的工艺条件,得到最佳堆肥方案,采用好氧堆肥技术对内蒙古达茂旗的羊粪进行好氧堆肥,在腐熟过程中以堆料的温度、pH、含水率、种子发芽指数(GI)的变化和有机质降解率为测验指标进行三因素三水平正交优化堆肥测验L9(34)。结果表明:当环境的平均温度为15℃~17℃时,堆肥在第2~4 d达到高温阶段(>50℃)且持续时间达5~8 d。堆熟后,各处理的种子发芽指数均已达75%以上,另外3因素对有机物降解率的影响显著性顺序为初始含水率>初始C/N比>翻堆频率,同时得出羊粪堆肥最优工艺参数组合为:初始碳氮比为25、初始水分含量为60%、翻堆频率为2 d/次。
In order to optimize the process conditions of sheep manure composting with high efficiency and obtain the best composting scheme, aerobic composting technology was adopted to conduct aerobic composting of sheep manure inDamao banner, Inner Mongolia. In the process of composting, three factors and three levels of orthogonal optimal composting test L9(34) were conducted with the temperature, pH, moisture content of the heap, the change of seed germination index(GI) and the degradation rate of organic matter as test indicators. The results show that when the environment of the average temperature of 15 ℃~17 ℃, composting in 2~4 d in high temperature stage(>50 ℃) and sustained time of 5~8 d. The germination index of the treated seeds reached more than 75% after heaping. In addition that descending sequence of influencing significance on organics degradation among the factors was C/N ratio, water content,turning frequency. Meanwhile, the optimal composting condition was as follows, C/N ratio was 25, water content was 60%, and turning frequency is once every two days.
作者
李红霞
蔡禄
季祥
蒋海明
潘建刚
王蕾
Li Hongxia;Cai Lu;Ji Xiang;Jiang Haiming;Pan Jianganj;Wang Lei(College of Life Science ,Inner Mongolia University of Science and Technology ,Baotou,014010 ,China;Bailing Temple No. 2 Middle School,Damao Banner ,Baotou,014500,China)
出处
《中国农机化学报》
北大核心
2019年第6期215-220,共6页
Journal of Chinese Agricultural Mechanization
基金
国家重点研发计划项目(2017YFC0506706—04)
内蒙古自治区重大基础研究开放课题(201503001—4—3)
关键词
羊粪
堆肥
正交试验
sheep manure
compost
orthogonal test
