菌渣垫料堆肥过程碳素物质转化规律
发布时间：2018-09-07 06:58
【摘要】：好氧堆肥是一种有效处理农业废弃物的方法,有利于实现农业资源的循环利用。但堆肥也有它的缺点,堆肥过程中的碳素损失是造成温室气体形成的重要原因。因此研究碳素在堆肥过程中的转化规律对于如何减少堆肥潜在的负面环境影响十分重要。该研究以生猪养殖发酵床废弃垫料及秀珍菇菌渣为原料,利用强制通风静态堆肥技术研究垫料和菌渣不同配比及添加EM菌剂对堆肥过程碳素物质转化的影响。结果表明,堆肥过程中总有机碳呈逐渐下降趋势;胡敏酸呈逐渐增加的趋势;微生物量碳和可溶性碳呈先增后降的变化趋势。堆肥结束时,碳素降解率为5.7%~10.2%,胡敏酸增加了56.0%~131.0%,可溶性有机碳增加了54.5%~81.5%,微生物生物量碳增加了31.7%~73.4%。以垫料为主料的堆肥处理碳素损失高于以菌渣为主料的处理,添加EM菌剂可以加速有机质的矿化分解和提高腐殖质化指数。
[Abstract]:Aerobic composting is an effective method for the treatment of agricultural waste, which is helpful to realize the recycling of agricultural resources. However, composting also has its disadvantages, the carbon loss in composting process is an important cause of greenhouse gas formation. Therefore, it is very important to study the transformation of carbon in composting process in order to reduce the potential negative environmental impact of compost. In this study, the effects of different ratios of gasket and bacteria residue on carbon conversion during composting process were studied by using static composting technology of forced ventilation using waste bedding and mushroom residue of pig culture fermentation bed as raw materials. The effects of different ratios of gasket and bacteria residue and the addition of EM bacteria agent on carbon conversion in composting process were studied by using static composting technology of forced ventilation. The results showed that total organic carbon decreased gradually, Hu Min acid increased gradually and microbial biomass carbon and soluble carbon increased first and then decreased during composting. At the end of composting, the degradation rate of carbon was 5.7 and 10.2, Hu Min acid increased 56.0 and 131.0, soluble organic carbon increased 54.5 and 81.5, microbial biomass carbon increased 31.73.4. The carbon loss of compost treated with bedding as main material was higher than that with bacteria residue. Adding EM bacteria agent could accelerate the mineralization decomposition of organic matter and increase the humus index.
【作者单位】： 福建省农业科学院农业生态研究所福建省丘陵地区循环农业工程技术研究中心;
【基金】：国家科技支撑计划课题(2012BAD14B15)
【分类号】：S141.4
[Abstract]:Aerobic composting is an effective method for the treatment of agricultural waste, which is helpful to realize the recycling of agricultural resources. However, composting also has its disadvantages, the carbon loss in composting process is an important cause of greenhouse gas formation. Therefore, it is very important to study the transformation of carbon in composting process in order to reduce the potential negative environmental impact of compost. In this study, the effects of different ratios of gasket and bacteria residue on carbon conversion during composting process were studied by using static composting technology of forced ventilation using waste bedding and mushroom residue of pig culture fermentation bed as raw materials. The effects of different ratios of gasket and bacteria residue and the addition of EM bacteria agent on carbon conversion in composting process were studied by using static composting technology of forced ventilation. The results showed that total organic carbon decreased gradually, Hu Min acid increased gradually and microbial biomass carbon and soluble carbon increased first and then decreased during composting. At the end of composting, the degradation rate of carbon was 5.7 and 10.2, Hu Min acid increased 56.0 and 131.0, soluble organic carbon increased 54.5 and 81.5, microbial biomass carbon increased 31.73.4. The carbon loss of compost treated with bedding as main material was higher than that with bacteria residue. Adding EM bacteria agent could accelerate the mineralization decomposition of organic matter and increase the humus index.
【作者单位】： 福建省农业科学院农业生态研究所福建省丘陵地区循环农业工程技术研究中心;
【基金】：国家科技支撑计划课题(2012BAD14B15)
【分类号】：S141.4
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