摘要
采用槽式堆料发酵的方式,以玉米秸秆为研究对象,牛粪为氮源,探讨接种不同微生物菌剂对玉米秸秆堆腐发酵过程的影响。结果表明,接种微生物菌剂有利于促进玉米秸秆堆体温度的迅速升高,其中T1(有机肥发酵剂)和T2(菌剂A)处理的最高温度分别可达71.1和70.1℃;除对照T0(未使用菌剂)处理随时间推移pH呈逐渐增大的趋势,添加微生物菌剂的处理pH均呈先增大后减小的趋势;各处理EC值均呈先增大后降低的趋势,与初始值相比,在堆腐发酵60 d时,T1处理EC值降低最多,可达40.4%;各处理堆料的E4/E6值变化趋势较为一致,均呈先增大后降低的趋势,在堆腐60 d时,接种微生物菌剂的处理显著低于对照处理;不同处理的发芽指数(GI)均呈先逐渐增大后趋于稳定的趋势,在堆腐60 d时,T1和T2处理GI均超过90%,筛选出2个适宜宁夏地区玉米秸秆腐熟发酵的菌剂。
Using the method of trough piling fermentation, taking corn straw as the research object and cow dung as the nitrogen source, the effect of inoculating different microbial agents on the composting and fermentation process of corn stalk was discussed.The results showed that the inoculation of microbial agents could promote the increase of temperature of corn straw, among them, the highest temperature of T1(organic fertilizer starter) and T2(bacterial agent A) could reach 71.1 and 70.1 ℃ respectively. Except for the control T0(without using inoculum),the pH increased gradually over time, and the pH of the treatment with added microbial inoculum showed a trend of first increasing and then decreasing.The EC value of each treatment showed a trend of first increasing and then decreasing. Compared with the initial value, the EC value of the T1 treatment decreased the most, reaching 40.4%,when the compost fermentation was carried out for 60 days.The change trend of E4/E6 values of the piles in each treatment is relatively consistent, showing a trend of first increasing and then decreasing. At 60 days of composting, the treatment with microbial inoculum was significantly lower than that of the control treatment.The germination index(GI) of different treatments showed a trend of increasing at first and then tending to be stable. At 60 d of composting, the GI of T1 and T2 treatments were more than 90%,and two bacterial agents suitable for corn straw composting fermentation in Ningxia were screened.
作者
朱金霞
周文生
乔长晟
张琳
郑国保
孔德杰
李苗
ZHU Jin-xia;ZHOU Wen-sheng;QIAO Chang-sheng(Institute of Forestry Sciences Agricultural Biotechnology Research Center,Ningxia Academy of Agricultural and Forestry Sciences,Yinchuan,Ningxia 750002;Ningxia Nuclear Industry Geological Prospecting Institute,Yinchuan,Ningxia 750021;Tianjin University of Science and Technology,Tianjin 300457;Tianjin Beiyang Baichuan Biotechnology Co.Ltd.,Tianjin 300457)
出处
《安徽农业科学》
CAS
2022年第11期45-49,共5页
Journal of Anhui Agricultural Sciences
基金
宁夏回族自治区重点研发计划项目(2021BEG03011)
宁夏农林科学院农业自主科技创新专项(DWX-2018026)。
关键词
微生物菌剂
玉米秸秆
堆腐发酵
Microbial agents
Corn straw
Composting fermentation
