不同堆肥方式对鸡粪与秸秆混合堆肥效果

以鸡粪和玉米秸秆为堆肥原材料，进行了露天堆肥和反应器堆肥对比实验。结果表明，反应器堆肥（堆体P2）较露天堆肥（堆体P1）升温快，堆体P2达到了《粪便无害化卫生标准（GB7959—87）》的要求，堆体P1未达到；在整个堆肥过程中，堆体P1的水分总损失量（26．5％）大于堆体P2的水分总损失量（20．6％）；堆体P1和P2的有机质降解主要发生在堆肥前期0～21d，分别完成了81．4％和84．5％的有机质降解量；堆体P1和P2的C／N比在堆肥过程中均呈下降趋势，最终C／N比分别为18．3和14．8；种子发芽指数GI_P1〈GI_P2，表明采用堆体P2的堆肥产品的植物毒性较堆体P1更小。各指标实测数据表明，反应器堆肥的堆肥产品的稳定性和腐熟程度较露天堆肥更好。

Effects of different composting models on co-composting chicken manure and maize straw

The contrast experiment was done between outdoor and reactor composting, using chicken ma- nure and maize straw as raw materials. The result showed that the temperature of reactor composting （pile 2） in- creased faster than outdoor eomposting （pile 1 ） , pile 2 could meet sanitary standard for the non-hazardous treat- ment of night soil （ GB7959-87）, but pile 1 couldn＇t. The total moisture loss （26.5%） of pile 1 was higher than that of pile 2 （20.6%） during the whole eo-eomposting process. The organic matter degradation of pile 1 and 2 happened in the first 21 days, which reached 81.4% and 84.5% , respectively. The C/N ratios of pile 1 and 2 decreased in the compositing process, which were 18.3 and 14.8 finally, respectively. Germination index GIP1 〈 GIP2 revealed that the phytotoxicity of pile 2 was lower. All measured indicator data indicated that the re- actor composting of chicken manure and maize straw was superior to outdoor eomposting in compost stability and maturity.