摘要
为了提高和改善槽式堆肥产品品质,研究影响槽式堆肥质量的因素,将鸡粪和辅料以一定比例混合作为研究对象,测定了3种混合比[鸡粪∶辅料(W/W),50∶50、60∶40和70∶30]的物料在3种不同翻抛频率(每12、24和36 h进行一次翻抛作业)的处理下总养分、含水率、温度和pH值4个堆肥品质指标的变化。分析和比较了在14 d的好氧堆肥过程中,堆肥物料品质指标的变化规律。结果表明,翻抛频率和混合比对堆肥品质指标有不同程度的影响。混合比对堆肥物料的总养分、含水率变化有极显著的影响(P<0.01),翻抛频率对堆肥物料含水率的变化有极显著影响(P<0.01),对pH值的变化有显著影响(0.01≤P≤0.05),两者都对温度的变化影响不显著。另外,试验结果显示,物料在混合比为70∶30和翻抛频率为每24h翻抛一次的条件下,堆肥后总养分含量提升最明显,理化性质稳定,有利于产出高品质的有机肥。
In order to improve quality of trough composting products and study factors that affect quality of trough composting,a cer-tain proportion of chicken manure(CM)and auxiliary materials(AM)were mixed as research object,and changes of four compost-ing quality indexes,such as total nutrients,water content,temperature and pH,were measured under treatment of three different turn-ing frequencies(every 12,24 and 36 h to carry out a turning operation)of materials with three mixing ratios[CM∶AM(W/W),50∶50,60∶40 and 70∶30].Variation rule of composting material quality index during two weeks of aerobic composting were ana-lyzed and compared.Results showed that turning frequency and mixing ratio had different degrees of influence on quality index of com-posting.Mixing ratio had an extremely significant effect on changes of total nutrients and water content of compost materials(P<0.01),turning frequency had an extremely significant effect on changes of water content of compost materials(P<0.01),and had a significant effect on changes of pH(0.01≤P≤0.05),both of which had no significant effect on changes of temperature.In addition,test results showed that under conditions of mixing ratio of 70∶30 and turning frequency of every 24 h,total nutrient content increased most obviously after composting,and physicochemical properties were stable,which was conducive to production of high-quality organ-ic fertilizer.
作者
刘祥
李辉
丁旻
张嘉昊
王飞跃
俞恒
查德翔
LIU Xiang;LI Hui;DING Min;ZHANG Jiahao;WANG Feiyue;YU Heng;ZHA Dexiang(Chinese Academy of Agricultural Mechanization Sciences Group Co.,Ltd.,Beijing 100083,China;MAE Wellful Industries Co.,Ltd.,Beijing 100083,China)
出处
《农业工程》
2023年第7期35-41,共7页
AGRICULTURAL ENGINEERING
基金
“十四五”国家重点研发计划项目(2022YFD2002104)。
关键词
槽式堆肥
好氧发酵
鸡粪
翻抛频率
混合比
trough composting
aerobic fermentation
chicken manure
turning frequency
mixing ratio
