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논문 기본 정보

자료유형
학술저널
저자정보
Yun-Gu Kang (Chungnam National University) Jae-Han Lee (Chungnam National University) Jin-Hyuk Chun (Chungnam National University) Yeo-Uk Yun (Chungnam Agricultural Research and Extension Services) Taek-Keun Oh (Chungnam National University) Jwa-Kyung Sung (Chungbuk National University)
저널정보
충남대학교 농업과학연구소 Korean Journal of Agricultural Science Korean Journal of Agricultural Science Vol.48 No.4
발행연도
2021.12
수록면
787 - 796 (10page)

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초록· 키워드

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Nitrogen (N) is the most important element during the process of plant growth, and the quality of crops varies depending on the amount of nitrogen present. Most of the nitrogen is used for plant growth, but approximately 10 - 20% of Nitrogen is carried away by the wind in the form of NH₃. This volatilized NH₃ reacts with various oxides in the atmosphere to generate secondary particulate matter. To address this, the present study attempts to reduce NH₃ occurring in the soil using biochar at a specific pH. Biochar was used as a treatment with 1% (w·w<SUP>-1</SUP>) of the soil, and urea was applied at different levels of 160, 320, and 640 kg·N·ha<SUP>-1</SUP>. NH₃ generated in the soil was collected using a dynamic column and analyzed using the indophenol blue method. NH₃ showed the maximum emission within 4 - 7 days after the fertilizer treatment, decreasing sharply afterward. NH₃ emission levels were reduced with the biochar treatment in all cases. Among them, the best reduction efficiency was found to be approximately 25% for the 320 k·ha<SUP>-1</SUP> + pH 6.7 biochar treatment. Consequently, in order to reduce the amount of NH₃ generated in the soil, it is most effective to use pH 6.7 biochar and a standard amount (320 kg·N·ha<SUP>-1</SUP>) of urea.

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Abstract
Introduction
Materials and Methods
Results and Discussion
Conclusion
References

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