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2021 Vol.30, Issue 2

Original Articles

Greenhouse Gases in Compound Fertilizer and Livestock Manure Compost for Crops Cultivation

작물재배용 복합비료 및 축산분뇨 퇴비에 함유된 온실가스

Man Kwon Choi1†
,
Sung Wook Yun2†
,
Yong Cheol Yoon3*
최 만권1†
,
윤 성욱2†
,
윤 용철3*
1Researcher, Protected Horticulture Research Institute, NIHHS, RDA, Haman 52054, Korea
2Researcher, Department of Agricultural Engineering, National Institute of Agricultural Sciences, RDA, Jeonju 54875, Korea
3Professor, Department of Agricultural Engineering, Gyeongsang National University (Institute of Smart Farm, GNU), Jinju 52828, Korea
1국립원예특작과학원 시설원예연구소 연구사
2농촌진흥청 농업공학부 에너지환경공학과 연구사
3경상국립대학교 지역환경기반공학과 교수(스마트팜연구소)
*Corresponding Author
†These authors contributed equally to this work.
30 April 2021. pp. 95-100
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Abstract

An experiment was conducted for this survey to approximate the amounts of CO2 and CH4 contained in composite fertilizers and livestock manure compost produced and commercialized for crop cultivation in South Korea. The results are summarized as follows. The average CO2 concentration in one sack of a composite fertilizer was estimated at approximately 1,733.3 ppm, regardless of the date of measurement. Approximately 0.067 kg of the fertilizer was contained per sack, and the unit weight of the fertilizer was approximately 3.35×10-3 kg·kg-1. An average of 885,750 t·yr-1 of the composite fertilizer was shipped for agricultural use in South Korea. Approximately 2.9 million t·yr-1 of CO2 was estimated to be contained in the composite fertilizer itself based on this amount. In the case of CH4, it was no longer measured after 76.8 ppm (2.949×10-3 kg per sack, 0.15×10-3 kg·kg-1 per unit weight) was indicated in one sack on the start date of measurement. The measurement could not be accurate since the amount of CO2 contained in the compost exceeded 10,000 ppm, which is the maximum measurement range of the measuring instrument, regardless of the closure or opening of the hole or the measurement date. Therefore, the amount contained per sack was approximately 0.506 kg when it was examined by assuming that it is 10,000 ppm, which is the maximum. It was found that the concentration of CH4 varied depending on the closure and opening of the compost hole. Approximately 2.53 kg of CH4 was contained in one sack of the compost. It was estimated to be over 4.7 million t·yr-1 when this amount was compared to the average production of solid compost in South Korea. Approximately 8,040 ppm of CO2 was discharged from the red pepper cultivation package on average until the end of the measurement. In the case of bare soil, the concentration of CH4 gradually decreased over time, and it took approximately 50 days for it to reach almost zero from a maximum of 1,700 ppm.

Keywords
carbon dioxide
greenhouse
methan
pepper cultivation

본 조사는 국내에서 작물재배용으로 생산 및 시판되는 복합비료와 축산분뇨 퇴비에 함유된 CO2와 CH4의 양을 개략적으로 알아보고자 실험적으로 검토하였다. 그 결과를 요약하면 다음과 같다. 복합비료의 한 포대에서 계측된 CO2의 농도는 계측한 날짜와 관계없이 평균 약 1,733.3ppm 정도로 일정하게 나타났다. 비료 한 포대당 함유된 양은 0.067kg 정도였고, 비료의 단위 무게는 3.35×10-3kg·kg-1 정도였다. 국내에서 농업용으로 출하된 복합비료는 평균 885,750t·yr-1 이었다. 이 양을 기준으로 복합비료 자체에 함유된 CO2의 양은 약 2.9백만 t·yr-1 정도로 추정할 수 있었다. CH4의 경우, 측정 개시일에 한 포대에 76.8ppm(포대당 2.949×10-3kg, 단위 무게당 0.15×10-3kg·kg-1) 정도 나타낸 후, 그 이후에는 측정되지 않았다. 퇴비에 함유된 CO2의 양은 구멍의 폐쇄 및 개방 여부에 관계없이 측정 일이나 측정구에 따라 계측기의 최대 측정범위인 10,000ppm을 초과하는 경우도 있었지만, 최대인 10,000ppm이라고 가정하고 검토하였다. 따라서 최대인 10,000ppm이라고 가정하고 검토한 결과 한 포대당 함유된 양은 0.506kg 정도였다. 퇴비 구멍의 폐쇄 및 개방 여부에 따라 CH4의 농도가 증감하는 것으로 나타났다. 퇴비 한 포대에 함유된 CH4의 양은 약 2.53kg 정도였다. 이 양을 국내에서 생산된 고형퇴비의 평균 생산량과 비교하면, 약 4.7백만 t·yr-1 이상이 될 것으로 추정할 수 있었다. 고추재배 포장에서 배출되는 CO2의 양은 측정 종료 때까지 평균적으로 8,040ppm 정도였다. 나지의 경우, 시간의 경과와 함께 CH4의 농도는 점차 감소하였고, 최대 1,700ppm에서 거의 제로 상태까지 약 50일이 소요되었다.

키워드
고추재배
메탄
온실
이산화탄소
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Information
  • Publisher :The Korean Society for Bio-Environment Control
  • Publisher(Ko) :(사)한국생물환경조절학회
  • Journal Title :Journal of Bio-Environment Control
  • Journal Title(Ko) :생물환경조절학회지
  • Volume : 30
  • No :2
  • Pages :95-100
  • Received Date : 2021-02-15
  • Revised Date : 2021-03-21
  • Accepted Date : 2021-03-23
  • DOI :https://doi.org/10.12791/KSBEC.2021.30.2.095
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