摘要
在室外温度低于0℃时,进行牛粪接种复合发酵剂堆肥试验,探讨复合发酵剂对腐植酸变化特征的影响。结果表明,接种复合发酵剂的全碳、总腐植酸含量在堆肥周期内呈下降趋势;总腐植酸与全碳比率逐渐增加且增加的比率明显高于未接种复合发酵剂。在堆肥前期,接种复合发酵剂的胡敏酸含量先下降;随着发酵进程的推移,又逐渐升高;至堆肥结束时,接种复合发酵剂胡敏酸含量高于未接种复合发酵剂。富里酸含量在整个发酵周期内呈明显的下降趋势,接种复合发酵剂富里酸含量在发酵不同阶段均低于未接种复合发酵剂。在堆肥过程中,接种复合发酵剂与未接种复合发酵剂胡富比(HA/FA)逐渐增加;至堆肥结束时,二者胡富比分别为1.26、1.08,表明接种复合发酵剂的牛粪堆肥腐植酸的腐殖化程度增加,发酵后腐殖质品质得到改善。
The compost test was conducted to study the effects of inoculating complex microbial inoculants on dynamic characteristics of humic carbon during the cattle manure composting process when outdoor temperature is lower than 0 ℃. The results showed that inoculating complex microbial inoculants could conspicuously decrease both total carbon and humic carbon contents throughout the whole compost. The ratio of total humic carbon to total carbon increased gradually, which was obviously higher than that of non-microbes inoculation. Inoculating complex microbial inoculants could decline the content of humic acid（HA）at the initial stage of composting while increased at the later stage. The content of humic acid was higher than that of non-microbes inoculation at the final stage of composting. Fulivc acid （FA） contents with inoculating complex microbial inoculants decreased sharply and the content of fulivc acid was lower than that of without microbe inoculation at different composting stages. But the ratio of HA/FA increased all the time throughout the compost. The ratio of HA/FA with inoculating complex microbial inoculants and without microbes inoculation was 1.26 and 1.08 respectively at the final stage of composting, indicating that the degree of composting humification increased and the quality of compost improved during inoculating complex microbial inoculants on cattle manure composting.
出处
《农业环境科学学报》
CAS
CSCD
北大核心
2008年第3期1231-1234,共4页
Journal of Agro-Environment Science
基金
财政部司国家环保总局司2004
集约化畜禽养殖污染防治专项基金
关键词
牛粪堆肥
复合发酵剂
腐植酸
cattle manure compost
complex microbial inoculants
humic carbon
