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为分析VT菌剂作为添加材料对农场尺度畜禽粪便高温堆肥腐熟进程的影响,以猪粪和发酵床垫料废弃物为试验材料进行了野外条垛式好氧堆制试验,监测堆肥过程中物料腐熟动态变化。结果表明:添加初始物料鲜质量0.2%的VT菌剂使堆肥49 d有效积温相对提高12%,水分散失速率相对提高46%,有机质累积降解率相对提高4%;VT菌剂的添加对堆肥过程中物料pH值、电导率(EC)、发芽率指数(GI)以及无机氮等腐熟指标变化规律产生了一定程度的影响,但总体影响较不显著;在添加VT菌剂的条件下,猪粪与垫料废弃物条垛式堆肥时间不宜少于35 d。
In order to analyze the effect of VT bacterial agent as supplementary material on the composting maturity of livestock manure at farm scale, pigs excrement and fermentation bed litter were used as test materials to conduct aerobic stack test in the field. During the composting process Material decomposed dynamic changes. The results showed that the addition of 0.2% fresh agent of the initial mass of VT fungi increased the effective accumulated temperature at 49 d by 12%, the water loss rate by 46%, and the cumulative degradation rate of organic matter increased by 4%. The effect of VT agent on the composting process PH, conductivity (EC), germination index (GI) and inorganic nitrogen and other maturity indicators have a certain degree of impact, but the overall effect is less significant; with the addition of VT bacteria agent, pig manure And litter waste Stacker composting time should not be less than 35 d.