家畜生态学报2024，Vol.45Issue(2)：55-60,6.DOI:10.3969/j.issn.1673-1182.2024.02.009
耐高温和耐低温固体复合菌剂对牛粪堆肥的影响
Effect of High Temperature and Low Temperature Resistant Solid Compound Microbial Agents on the Composting of Cow Manure
摘要
Abstract
In order to solve the problem of long composting time of cow dung at low temperature,shorten the composting fermentation time,and improve the quality of organic fertilizer,the eight strains of bacteria selected in the test were made into high temperature and low temperature resistant solid com-pound microbial agents,and added to the cow dung compost as a test Group(group T),whereas natural compost without inoculants was set as the control group(group C).Physical and chemical indicators,spe-cies composition and dominant microorganisms were tested to verify the effect of the prepared compound inoculants on the start of winter cow manure composting and the high temperature period of composting.The results showed after adding the solid compound bacterial agents the temperature in group started and rose faster at the in itial stage compared with group C.The onset of high temperatures arrived two days earlier,with the peak temperature exceeding by 3.4 degrees.The fluctuations in pH levels,both upward and downward.were greater than those observedin group C,ultimately stabilizing aroud 8.1.At the end of composting,the moisture content,C/N and organic matter all decreased,total phosphorus,total potassi-um and seed germination rate(GI)all increased,with group T having the greater ranges of flutuation The dominant microbial in phylum level T group at the initial stage of composting(Tl)was Firmicutes and Actinobacteria,at the heating period(T2)being Firmicutes,at the high temperature period(T3)being Bacteroidetes,at the cooling period(T4)and the maturity period(T5)being Actinobacteria and Chlo-roflexi.Proteobacteria was the dominant microorganisms in the entire composting process.The diversity of group C and group T is similar,the difference lies in their abundance ratio.High-throughput sequencing found that the compost temperature and the number of microorganisms are the key.Therefore,the high-temperature and low-temperature-resistant solid composite microbial agents prepared before cow manure composting can quickly start the initial temperature of winter composting and prolong the high-tempera-ture period,shorten the composting time,and improve the efficiency of composting and the quality of or-ganic fertilizer.关键词
牛粪/堆肥/耐高温菌/耐低温菌/理化指标Key words
cow manure/composting/high temperature resistant microbial/low temperature resistant microbial/physical and chemical indicators分类
农业科技引用本文复制引用
岳世林,马晓勇,姜国均..耐高温和耐低温固体复合菌剂对牛粪堆肥的影响[J].家畜生态学报,2024,45(2):55-60,6.基金项目
河北省第二期现代农业产业技术体系(HBCT2018130205) （HBCT2018130205）
