发酵床熟化垫料肥料化发酵特性

发布时间：2018-05-01 02:08

本文选题：固体发酵 + 发酵床熟化垫料　；参考：《江苏农业科学》2017年21期

【摘要】：固体堆肥发酵是合理利用发酵床熟化垫料的有效途径之一,但是发酵床熟化垫料因在养殖场中经过腐熟分解过程,存在无法满足固体堆肥发酵及畜禽粪便无害化处理要求的风险。将不同比例的酒糟添加进发酵床熟化垫料中,改善发酵床熟化垫料理化性状,使其能够进行正常的堆肥发酵,并对发酵过程中的温度、pH值、电导率(EC)、养分以及发芽指数进行检测,从而观察不同处理之间堆肥进程差异,在兼顾堆肥耗时、腐熟度以及养分含量的情况下,选出较为合适的混合发酵比例。结果表明,经过53 d的堆肥发酵,添加酒糟的T2、T3、T4、T5处理能够延长堆肥中高温阶段的天数,满足无害化对温度的要求,达到腐熟发酵床熟化垫料的目的;但与其他处理比较T2处理耗时最短,成本最低。酒糟的添加不仅能够明显提高堆体初始pH值以及C/N,而且明显降低堆体初始的EC值,有一个相对合适的初始发酵条件。因此,发酵床熟化垫料添加25%的酒糟进行混合发酵,不仅可以得到较好的堆肥效果,而且控制了发酵床熟化垫料成本,节省时间。
[Abstract]:Solid compost fermentation is one of the effective ways to make use of fermentation bed maturation pad. However, fermentation bed maturation pad is decomposed through decomposing process in breeding farm. There is a risk that it can not meet the requirements of solid compost fermentation and harmless disposal of livestock and poultry manure. In order to improve the physical and chemical properties of fermented bed maturation pad, different proportion of distiller's grains were added into fermentation bed maturation pad, so that it could carry out normal composting fermentation, and the temperature and pH value of fermentation process were also studied. In order to observe the difference of composting process between different treatments, the composting time, maturity and nutrient content were taken into account, and the suitable mixed fermentation ratio was selected. The results showed that after 53 days of composting fermentation, the treatment of adding distiller's grains T2OT3OT4T4 T5 could prolong the days of high temperature stage of compost, satisfy the requirement of innocuous fermentation temperature, and achieve the purpose of maturing maturation of fermented bed. Compared with other treatments, T2 treatment takes the shortest time and the lowest cost. The addition of distiller's grains can not only increase the initial pH value and C / N value, but also decrease the initial EC value of the reactor body obviously. There is a relatively suitable initial fermentation condition. Therefore, the fermentation bed maturation pad added 25% of distiller's grains for mixed fermentation can not only obtain better composting effect, but also control the cost of fermentation bed maturation pad and save time.
【作者单位】：江苏省农业科学院循环农业研究中心;江苏省农业科学院农业资源与环境研究所;江苏省淮安市中园园艺发展有限公司;
【基金】：公益性行业(农业)科研专项(编号:201203050) 江苏省农业科技自主创新资金[编号:CX(14)2132] 江苏省六大人才高峰项目(编号:NY-033)
【分类号】：S141.4

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