| 摘要: |
| 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,28 d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。 |
| 关键词: 羊粪 小麦秸秆 堆肥 |
| DOI：10.11841/j.issn.1007-4333.2010.02.006 |
| 投稿时间：2009-07-13 |
| 基金项目:国家绿色农业科学研究与示范项目(2007-12-02);甘肃省农业科技创新专项(2009GAAS27)第一作者:卢秉林,助理研究员,主要从事土壤和环境微生物研究,E-mail:lblhappy@163.com |
|
| Effect of wheat straw on the maturity processing of sheep manure under high temperature condition |
|
LU Bing-lin, WANG Wen-li, LI Juan, MA Zhong-ming
|
| (Institute of Soil, Fertilizer and Water Saving Agricultural, Gansu Academy of Agricultural Sciences, Lanzhou 730070, China) |
| Abstract: |
| To seek the optimal ratio of wheat straw and sheep manure during maturity process under high temperature condition, and to provide a scientific basis for sheep manure rapid resource utilization, the effect of wheat straw on sheep manure compost maturity under high temperature condition was studied. Results showed that during the sheep manure composting, addition of wheat straw can shorten the time of reaching high temperature fermentation, thus decreased nitrogen loss, accelerated the decline rate of C/N, and minimize harmful by-products. At the end of 9∶2 mixture of sheep manure and wheat straw composting, the decrease extent of organic matter and available nitrogen were moderate compared with that of the initial stage. The decrease extent of organic matter was 33.67% and 14.10%, respectively. On the other hand, its increase extent of total nitrogen, total phosphorus, total potassium, available phosphorus and available potassium content were significant compared with that of the initial stage. They were 13.84%, 8.40%, 24.82%, 31.34% and 5.47%, respectively. Germination index at 80% was used as the index of compost maturity. The maturity rate of at 9∶2 mixture of sheep manure and wheat straw doubled than that of pure sheep manure, it was reached maturity after 28 days of composting. Comprehensive analysis showed that at 9∶2 mixture of sheep manure and wheat straw was more suitable for composting in practical applications. |
| Key words: sheep manure wheat straw composting |
