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通过研究小麦秸秆添加量对羊粪高温堆肥腐熟进程的影响,寻求羊粪高温堆肥时与秸秆的最佳配比,旨在为羊粪快速资源化利用提供科学依据。结果表明:羊粪高温堆肥时添加小麦秸秆可以缩短进入高温发酵期的时间,减少氮素损失,加快C/N降低速率,减少有害物质产生;羊粪和小麦秸秆质量分数9∶2处理在堆肥结束时,有机质和速效氮含量较堆肥初期下降幅度最小,分别为33.67%和14.10%,全氮、全磷、全钾、速效磷和速效钾含量较堆肥初期提高幅度最大,分别为13.84%、8.40%、24.82%、31.34%和5.47%。若以种子发芽指数80%作为堆肥腐熟的评价指标,羊粪和小麦秸秆按质量9∶2堆肥的腐熟速度比纯羊粪提高了1倍,28d即可腐熟。在实际应用中,羊粪与小麦秸秆按质量9∶2进行堆肥较为适宜。
By studying the effect of adding wheat straw on the composting process of sheep manure at high temperature, the optimal ratio of straw to straw during high-temperature composting of sheep manure was sought to provide a scientific basis for rapid resource utilization of sheep manure. The results showed that the addition of wheat straw during high-temperature composting of sheep manure could shorten the time of entering the high-temperature fermentation period, reduce the nitrogen loss, accelerate the reduction of C / N and reduce the production of harmful substances. The ratio of sheep manure and wheat straw was 9: 2, At the end of this period, the content of organic matter and available nitrogen decreased the least, reaching 33.67% and 14.10% respectively. The contents of total nitrogen, total phosphorus, total potassium, available phosphorus and available potassium were the highest compared with the initial composting, accounting for 13.84% 8.40%, 24.82%, 31.34% and 5.47%. If the seed germination index of 80% as compost composting evaluation indicators, sheep manure and wheat straw compost at a rate of 9: 2 composting faster than pure sheep manure doubled, 28d can be decomposed. In practice, sheep manure and wheat straw compost by mass 9: 2 is more appropriate.