摘要
为探明氮素转化微生物菌群对牛粪好氧堆肥效果的影响,以牛粪和玉米秸秆为原料,以添加自行研制的复合微生物菌群为接种组,以添加同等体积的无菌水为对照组,研究不同处理下堆体温度、pH值、电导率、总氮含量、硝态氮含量、铵态氮含量及种子发芽指数等指标的变化。结果表明:在试验中,按照10 mL·kg^(-1)的比例添加自行研制的微生物菌群进行牛粪好氧堆肥能够使堆肥的最高温度较对照组上升5.8℃,缩短升温延滞期,提前4 d进入高温期(>50℃),且高温期持续的时间延长4 d,加快牛粪堆料的腐熟;同时,能够固定堆料中的氮素,堆肥结束后,接种组的总氮含量较对照组增加8.14%,氨气减排29.02%。
To investigate the effect of nitrogen transforming flora on the aerobic composting of cattle manure,the experiment was conducted with cattle manure and maize straw as raw materials,and the addition of self-developed complex microbial flora was used as the inoculation group,and the addition of the same volume of sterile water was taken as the control group.The results showed that addition of 10 mL·kg~(-1) self-developed microbial flora for aerobic composting of cattle manure increased the highest temperature of the composting by 5.8 ℃,shortened the time to delayed warming period,entered the high temperature(>50 ℃) period 4 days earlier,and lasted 4 days longer in the high temperature period,thus accelerated the decomposition of cattle manure.At the same time,the addition of microbial flora was able to fix nitrogen nutrients in the pile,as the total nitrogen content was increased by 8.14% and the ammonia emission was cut by 29.02%.
作者
王佳丽
王梓宇
马咏琪
唐德富
孙丽坤
WANG Jiali;WANG Ziyu;MA Yongqi;TANG Defu;SUN Likun(College of Animal Science and Technology,Gansu Agricultural University,Lanzhou 730070,China)
出处
《浙江农业学报》
CSCD
北大核心
2024年第1期177-186,共10页
Acta Agriculturae Zhejiangensis
基金
甘肃省科技重大专项计划(21ZD4NA012)
国家自然科学基金(3216180108)
甘肃农业大学“伏羲杰出人才培育计划”(GAUfx-04J03)。
关键词
好氧堆肥
微生物菌群
保氮效果
aerobic composting
microbal flora
nitrogen retention effect
