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以猪粪和水稻秸秆为材料,采用发酵槽内堆置,分别设置低量秸秆、高量秸秆和纯猪粪三个处理,分析堆肥33天过程中的物理、化学和纤维素类等指标的变化,探讨堆肥过程中添加不同比例的水稻秸秆对堆肥特性的影响。结果表明,添加高量秸秆堆肥处理的升温速率最佳,纯猪粪处理的水分散失率大于其他两个处理。堆肥结束时,各处理的p H值为8.46-8.66,电导率稳定在1.4-2.4 ms/cm,E4/E6降至3.12-3.37,堆肥达到了腐熟;高量秸秆处理的(终点C/N)/(初始C/N)介于0.53-0.72,其堆肥效果较好、腐熟程度较高。各处理堆肥产品的全磷含量均有提高;纯猪粪处理的纤维素、木质素和半纤维素的总降解率均高于其他两个处理。整体来说,添加高量秸秆处理腐熟速度较快,且效果较好,这可为猪粪快速资源化利用和猪粪堆肥产品质量的提高提供科学依据。
Pig manure and rice straw were used as raw materials, and three kinds of treatments including low-level straw, high-level straw and pure pig manure were set up in the fermentation tank to analyze the physical, chemical and cellulosic indexes during composting for 33 days Changes in composting process to explore the different proportions of rice straw on the compost characteristics. The results showed that the heating rate of adding high amount of straw compost treatment was the best, and the water loss rate of pure pig manure treatment was greater than that of the other two treatments. At the end of composting, the p H value of each treatment was 8.46-8.66, the conductivity was stable at 1.4-2.4 ms / cm, E4 / E6 was reduced to 3.12-3.37, and the compost reached composting. The high-level straw treatment (end point C / N ) / (Initial C / N) ranged from 0.53 to 0.72, the composting effect was better and the degree of maturity was higher. The total phosphorus content of the composted products increased with each treatment. The total degradation rate of cellulose, lignin and hemicellulose in pure pig manure was higher than the other two treatments. Overall, the addition of high amount of straw treatment of the compost faster, and the effect is better, which can provide a scientific basis for the rapid utilization of pig manure and pig manure compost product quality improvement.