Acta Agriculturae Zhejiangensis ›› 2024, Vol. 36 ›› Issue (1): 177-186.DOI: 10.3969/j.issn.1004-1524.20221466

• Environmental Science • Previous Articles     Next Articles

Effect of nitrogen transforming flora on nitrogen retention in aerobic composting of cattle manure

WANG Jiali(), WANG Ziyu, MA Yongqi, TANG Defu, SUN Likun()   

  1. College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
  • Received:2022-10-24 Online:2024-01-25 Published:2024-02-18

Abstract:

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%.

Key words: aerobic composting, microbal flora, nitrogen retention effect

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