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通过对低碳氮比(C/N)的蛋鸡粪与蔗渣好氧堆肥研究,旨在探讨充分利用蔗渣资源开展蛋鸡粪资源化利用的现实性与可行性。试验将蛋鸡粪与蔗渣混合制成C/N比值分别为17.88和13.94的两个处理组,好氧堆肥,测定6周堆肥过程中堆体温度、物料C/N、水溶性碳、水溶性氮、铵态氮、硝态氮、全钾、总磷含量的变化。结果表明:2个堆体温度都能快速升至50℃以上,并维持3周,但C/N17.88组更快升至60℃并在此温度维持时间较长,同时加快了物料铵态氮向硝态氮转化,相对缩短了物料腐熟时间;C/N13.94组铵态氮较高,pH值也高,N素损失较多,延长了腐熟时间;蔗渣可导致堆肥物料可利用碳少。分析表明,在减少N素损失和提高蔗渣降解率的措施下,低C/N的蛋鸡粪与蔗渣好氧堆肥在生产上具可行性。
Through the research on the aerobic composting of laying hen and bagasse with low carbon and nitrogen ratio (C / N), this paper aims to explore the feasibility and feasibility of making full use of bagasse resources for resource utilization of laying hen. In the experiment, the hen and bagasse were mixed to make two treatment groups with C / N ratios of 17.88 and 13.94, respectively. Aerobic composting was carried out. The temperature, material C / N, water-soluble carbon, Nitrogen, ammonium nitrogen, nitrate nitrogen, total potassium, total phosphorus content changes. The results show that the temperature of both piles can rapidly rise above 50 ℃ for 3 weeks, but the C / N17.88 group rises to 60 ℃ faster and stays at this temperature for a longer time, and accelerates the ammonium content of the material The conversion of nitrogen to nitrate nitrogen shortens the maturity time of the material. The ammonium nitrogen in C / N13.94 group is high, the pH value is also high, and the loss of N is more, which prolongs the maturity time. Bagasse can lead to carbon available in composting materials less. The analysis showed that the low C / N layer of chicken manure and bagasse aerobic composting are feasible in reducing the loss of N and increasing the rate of bagasse degradation.