摘要： 以鸡粪和锯末不同质量比混合堆肥, 通过调节水分和加入过磷酸钙和石灰, 研究了腐熟过程中发酵参数对堆肥温度、水分、pH、C/N和植物养分含量等的变化。结果表明, 在53 d堆肥期间, 堆肥高温期维持时间长, 50℃以上累计达20 d;含水量和C/N持续下降, C/N各处理下降幅度不同, T值小于0.6的处理仅处理4、处理5、处理6;pH值先升后降, 53 d后趋于稳定, 接近7左右;全磷和速效磷呈缓慢上升趋势, 变幅最大的均为处理5;全钾和速效钾则先降后升, 处理5的含量和增幅均最大。综合各因素来看, 处理5的物料配比较适合本地区鸡粪高温堆肥发酵。

关键词: 鸡粪, 锯末, 堆肥, 物料配比

Abstract: Through regulating the moisture and adding calcium superphosphate and lime, the effect of fermentation factors on composting temperature, moisture, pH, C/N and plant nutrient content etc. were studied in the maturity process of high temperature composting of chicken manure and sawdust. The results indicated that: the high temperature composting maintained a longer time, and lasted for 20 d over 50℃ in 53 days;the moisture and C/N ratio dropped, and the C/N ratio of different treatments had the range of decline differently, furthermore, the treatments that T value is less than 0.6 were treatment 4, 5 and 6;The pH value had a rise followed by a drop, and stayed stable at around 7.0 after 53 d ; Total phosphorus and available phosphorus was slowly rising, and the increase of treatment 5 was largest;Total potassium and available potassium had experienced from decrease to increase, and the content and the increase of treatment 5 was maximum. Taking all factors, material ratio of treatment 5 was more suitable for high temperature eomposting of chicken manure fermentation in this region.

Key words: Chicken manure, Sawdust, Composting, Material ratio

中图分类号: 

• S141.4