ASSESSMENT OF GHGs EMISSION FROM DIFFERENT COW-PAT TREATMENT METHODS AND EFFECTIVENESS OF EM SUPPLEMENTATION

  • Tran Thi Thuy Nhan
  • Tran Thi Ngoc Mai
  • Truong Thi Dieu Hien
  • Nguyen Thi Tra Mi
  • Nguyen Thi Thanh Thao
Từ khóa: Greenhouse gases (GHGs), cow-pat, methane, carbon dioxide, effective microorganisms EM.

Tóm tắt

Greenhouse gas (GHGs) emission is a great concern in the agriculture industry. These gases mainly consist of methane (CH4), carbon dioxide (CO2), and nitrous oxide (N2O). GHGs might originate from rice farming, livestock, or manure storage. In countryside areas, there are many approaches to archive manure, however, no evidence for GHGs emission evaluation has been conducted. In this study, we aim to testify the GHGs emission among the common cow-pat treatment approaches, including basking, and in-box inoculation with and without surface lid. Furthermore, effective microorganisms (EMs) named Balasa No.1 and EM Balasa No.5 were also deployed in this study to appraise their effects on cow-pat decomposition and GHGs emissions. Results suggest that the basking method releases the least GHGs as compared to in-box inoculation. In addition, the surface lid generates more CO2 than to group without a lid for two weeks of observation. The amendment of EMs rises the temperature of the chamber, preferably increasing CH4 emission in Balasa No.1 treatment while elevating CO2 production in EM Balasa No.5 treatment. To compromise between decreasing GHGs emissions and cow-pat decomposition/ fertilizer transformation, EM Balasa No.5 seems to be the safe choice per this study.

điểm /   đánh giá
Phát hành ngày
2022-10-13
In ra
Tập. 22 Số. 2 (2022)
Chuyên mục
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