Korean Journal of Environmental Agriculture (한국환경농학회지)

The Korean Society of Environmental Agriculture (한국환경농학회)
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Evaluation of Ammonia Emission Coefficient according to the use of Compound Fertilizers when Cultivating Apples and Pears in Orchards

과수원에서 사과 및 배 재배 시 복합비료 시용에 따른 암모니아 배출계수 평가

  • Kim, Min-Wook (Climate Change Assessment Division, Department of Agricultural Environment, National Institute of Agricultural Sciences, Rural Development Administration) ;
  • Hong, Sung-Chang (Climate Change Assessment Division, Department of Agricultural Environment, National Institute of Agricultural Sciences, Rural Development Administration) ;
  • Yu, Seon-Young (Climate Change Assessment Division, Department of Agricultural Environment, National Institute of Agricultural Sciences, Rural Development Administration) ;
  • Kim, Jin-Ho (Climate Change Assessment Division, Department of Agricultural Environment, National Institute of Agricultural Sciences, Rural Development Administration)
  • 김민욱 (농촌진흥청 국립농업과학원 농업환경부 기후변화평가과) ;
  • 홍성창 (농촌진흥청 국립농업과학원 농업환경부 기후변화평가과) ;
  • 유선영 (농촌진흥청 국립농업과학원 농업환경부 기후변화평가과) ;
  • 김진호 (농촌진흥청 국립농업과학원 농업환경부 기후변화평가과)
  • Received : 2021.12.19
  • Accepted : 2021.12.28
  • Published : 2021.12.31
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Abstract

BACKGROUND: Ammonia is known as a precursor to fine particulate matter, and according to CAPSS, annual ammonia emissions in the agricultural sector were 249,777 tons as of 2018, accounting for about 79.0% of Korea's total ammonia emissions. In particular, ammonia emissions from agricultural land increased by 19,566 tons (10.2%) compared to the previous year. The Ministry of Environment is setting emission statistics using the ammonia emission coefficient developed in Korea in 2008, but researchers in the agricultural field regard it as a coefficient that does not reflect the reality of Korea's agricultural environment. Accordingly, in order to develop ammonia emission coefficients from the cultivation of apples and pears, Korea's representative fruit type, test agricultural land was set in Iksan, Jeollabuk-do. METHODS AND RESULTS: This study attempted to obtain the ammonia emission coefficient by the treatment of the composite fertilizer (N-P2O5-K2O=12-7-9), and the flux was measured using a dynamic flow-through chamber method. As for the chamber, a total of 12 chambers were installed repeatedly in 4 zones and used to develop emission coefficients. Using compound fertilizers during fruit tree cultivation, the ammonia emission coefficient was evaluated as 10.4 kg NH3/ton for pears and 15.3 kg NH3/ton for apples. The reason why the ammonia emission coefficient according to the use of composite fertilizers was calculated higher for apple cultivation is believed to be due to the relatively high pH concentration of apple orchard soil. CONCLUSION(S): This study may provide basic data for upgrading the ammonia emission coefficient when using composite fertilizers in agricultural land. In the future, it might be necessary to upgrade the calculation of emissions through the development of ammonia and fine particulate matter emission coefficients considering the agricultural environment of Korea.

Keywords

Acknowledgement

This study was carried out with the support of "Research Program for Agricultural Science & Technology Development (Project No. PJ015060012021)", National Institute of Agricultural Sciences, Rural Development Administration, Climate Change Assessment Division, Republic of Korea.

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