不同促腐菌剂对有机废弃物堆肥效果的研究

发布时间：2018-05-13 14:05

  本文选题：有机废弃物 + 菌剂　； 参考：《中国土壤与肥料》2017年04期

【摘要】：为了促进当地农业有机废弃物资源的循环利用,以牛粪、鸡粪、食用菌渣为堆肥原料并协调碳氮比为30∶1,添加不同的微生物菌剂进行堆肥,研究堆肥过程中的温度、pH值、全氮、铵态氮、硝态氮和发芽指数的变化趋势,比较不同菌剂处理在堆肥前后养分含量的差异。结果表明,枯草芽孢菌剂和EM菌剂处理堆肥初期升温快,发酵基和速腐剂处理堆肥初期升温相对缓慢;枯草芽孢菌剂处理高温阶段温度基本上维持在70℃上下,堆肥前后氮素损失率最大为33.18%,发芽指数最低,而EM菌剂处理的高温阶段温度维持在55~68℃,氮素损失率最小为10.73%,发芽指数在堆肥21 d为51.55%,达到了基本腐熟,堆肥35 d为84.27%,达到了完全腐熟,堆肥腐熟快于其他处理。因此,在利用牛粪等有机废弃物进行高温好氧堆肥过程中,需要选择具有多种微生物能够相互协调作用并适应高温堆肥的菌剂,并且菌剂用量适宜,以达到减少氮素损失,提高堆肥的效果。
[Abstract]:In order to promote the recycling of the local agricultural organic waste resources, using cow manure, chicken dung and edible fungus dregs as composting materials and coordinating the ratio of carbon to nitrogen of 30: 1, different microbial agents were added to compost to study the temperature and pH value in the composting process. The changes of total nitrogen, ammonium nitrogen, nitrate nitrogen and germination index were compared. The results showed that the initial temperature of the compost treated with Bacillus subtilis and EM was fast, the initial temperature of the compost treated with fermentative and rapid rot was relatively slow, and the temperature of the treatment with Bacillus subtilis was about 70 鈩，

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