木薯皮和鸡粪的堆肥化利用研究  

The Study on Composting Utilization of Cassava Bark and Chicken Manure

作　　者：侯宪文[1] 李勤奋[1] 陈炫[1] 李光义[1] 邹雨坤[1] 

机构地区：[1]中国热带农业科学院环境与植物保护研究所,海口571101

出　　处：《农业环境科学学报》2014年第3期478-483,共6页Journal of Agro-Environment Science

基　　金：现代农业产业技术体系项目(nycytx-17);公益性行业(农业)科研专项经费项目(201203072-04)

摘　　要：由于木薯皮含有大量的纤维素等难分解物质,且其碳氮比值较高,难以直接利用。本研究以木薯皮和鸡粪为原料进行高温堆肥发酵,研究了堆肥化过程中理化性质的变化情况及堆肥腐熟程度。结果表明:在堆肥发酵过程中,温度变化呈先上升后下降趋势,到后期已趋近于初始温度;而含水率变化不大。各处理的pH值在发酵结束时为7.3～7.5。水溶性有机碳含量随着堆肥化进行而降低;而水溶性氮含量的变化受通气状况和氮源条件的影响较大。纤维素酶活性在堆肥初期增加,然后逐渐降低。考虑到堆肥腐熟度受多方面因素的影响,判断堆肥腐熟度时应根据多种指标(包括生物学、化学、物理学指标)综合判断。The cassava bark contains a lot of cellulose and other refractory material as well as high carbon nitrogen ratio, which is difficult to be used directly. A composting system using cassava bark and chicken manure was conducted to probe transforming characteristics during composting process. The results evidenced that the temperature showed the trend of ＂increase-decrease＂ among four composts, drew close to the initial temperature at the later period. Moisture content was no significant difference during the time course. The final pH value of each processing was 7.3-7.5 by the end of fermentation. The content of water-soluble carbon （WSC） decreased with composting, reflecting the maturation process during cassava bark composting. And water-soluble nitrogen（WSN） content was strongly influenced by ventilation condi- tions and nitrogen source conditions. The cellulase activity increased in the early stage and decreased gradually in the later stage. Since many factors impacting the compost maturity, it should be evaluated by various parameters including biological, chemical and physical parameters.

关 键 词：堆肥 腐熟度 理化性质 纤维素酶活性 木薯皮 

分 类 号：X71[环境科学与工程—环境工程]