摘要
玉米秸秆与牛粪混合堆肥是实现秸秆与粪便资源化利用的有效途径之一。将本实验室筛选的一组低温复合菌系接入堆肥中,研究结果表明:在8℃低温条件下,秸秆用量大时升温快、温度高,处理1与处理2堆温在第4 d和第3 d分别为50.8和53.4℃,最高温度分别达到58.4、64.8℃,50℃以上持续了6 d,而不加复合菌系的对照,最高温度为40.9℃,未达到堆肥无害化要求。堆肥结束时,处理1、处理2和对照有机质含量较初始时分别下降了37.54%、33.58%、13.50%;全碳含量分别为26.05%、27.80%、36.55%,较初始分别下降了43.18%、41.54%和19.69%;C/N分别下降了42.83%、41.54%和14.95%;处理1处理2纤维素降解率分别达到37.54%、32.80%,较对照分别提高2.24倍、1.83倍。表明本实验室筛选的低温复合菌系能够使堆肥快速升温,缩短堆肥周期,促进堆肥的腐熟。
Corn straw and cattle dung compost is one of the effective ways to achieve the straw and dung resource utilization. Our laboratory screened a set of low-temperature composite strains and put it into the compost. The results showed that at 8 ℃ low temperature, the compost temperature of treatment one and two arrived at 50. 8 ℃ and 53.4 ℃ by four days and three days. The maximum temperature reached 58.4℃ , 64. 8 ℃. And it was lasted six days above 50 ℃. With no complex strains control group, the maximum temperature was 40. 9 ℃, which did not meet the requirements for eomposting harmless. At the end of composting, compared with in initial stage, the content of organic matter for treatment 1, treatment 2 and the control decreased by 37.54% , 33.58%, 13.50% , the content of total carbon for treatment 1, treatment 2 and the control were 26. 05% , 27.80% and 36. 55% , which decreased by 43.18% , 41.54% and 19. 69% compared with the initial stage. C/N ratio dropped down by 42. 83% , 41.54% and 14.95%. The degradation rate of cellulose were 37.54% , 32. 80% , which increased by 2. 24 times and 1.83 times compared with the control. Thus, the low-temperature strains made compost temperature rising lastly, shorten the composting cycle, and promoted the rapid decomposition of compost.
出处
《中国土壤与肥料》
CAS
CSCD
北大核心
2017年第2期136-140,共5页
Soil and Fertilizer Sciences in China
基金
三江平原规模化农业循环技术集成与示范
"十二五"国家科技支撑计划(2012BAD14B06)
寒区畜禽粪便生物处理与有机肥生产技术应用
哈尔滨市科技成果转化项目(2014DB3BN037)
关键词
玉米秸秆与牛粪堆肥
低温复合菌系
温度
有机质含量
纤维素降解率
corn straw and cow dung compost
hypothermia strains
temperature
organic matter content
cellulose degrada- tion rate
