论文部分内容阅读
利用香蕉茎秆与鸡粪为底料进行了C/N分别为15.2、21.5、25.5、31.8、41.5的堆肥对比试验,定量化研究了堆肥过程中堆体的温度、水分、pH和EC、全碳、全氮及C/N、养分有效含量随时间的变化规律。结果表明,堆体初始C/N在20～40范围内,均能成功地进行好氧堆肥。当C/N低于15.2时,堆体温度上升快,但高温持续时间短,pH高,水溶性盐分的含量高,有机质和总养分含量较低,而且由于加入鸡粪太多,增加了堆肥的成本;当C/N大于41.5时,堆体温度上升慢,进入高温期所需时间长,堆体含水率过高。综合考虑各方面因素,堆肥初始C/N控制在20～30为宜,以25.5为最佳;腐熟期为27d左右,对应适宜的C/N判断值为18。
The compost experiments with 15.2, 21.5, 25.5, 31.8 and 41.5 C / N ratios were conducted using banana stalks and chicken manure as raw materials. The temperature, moisture, pH and EC in the composting process were quantitatively studied Carbon, total nitrogen and C / N, nutrient content with time changes. The results show that aerobic composting can be successfully carried out with initial C / N of 20-40 in the pile body. When the C / N is below 15.2, the temperature of the pile rises rapidly, but the duration of the high temperature is short, the pH is high, the content of the water-soluble salt is high, the organic matter and the total nutrient content are low, and compost is added due to the excessive addition of the chicken manure When the C / N is greater than 41.5, the temperature of the pile body rises slowly, the time required to enter the high temperature period is long, and the moisture content of the pile body is too high. Considering all the factors, the initial C / N control of compost is 20 ~ 30, 25.5 is the best; the maturity is about 27 days, and the corresponding C / N is 18.