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논문 기본 정보

자료유형
학술저널
저자정보
Seong Min Park (Pusan National University) Chang Oh Hong (Pusan National University)
저널정보
충남대학교 농업과학연구소 Korean Journal of Agricultural Science Korean Journal of Agricultural Science Vol.46 No.4
발행연도
2019.12
수록면
907 - 914 (8page)

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초록· 키워드

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Ammonia (NH₃)hat reacts with nitric or sulfuric acid in the air is the major culprit contributing to the formation of fine particulate matter (PM<SUB>2.5</SUB>). NH₃ volatilization mainly originates from nitrogen fertilizer and livestock manure applied to arable soil. Cation exchange capacity (CEC) of peat moss (PM) and zeolite (ZL) is high enough to adsorb ammonium (NH₄<SUP>+</SUP>) in soil. Therefore, they might inhibit volatilization of NH₃. The objective of this study was to compare the effect of PM and ZL on NH₃ volatilization from upland soil. For this, a laboratory experiment was carried out, and NH₃ volatilization from the soil was monitored for 12 days. PM and ZL were added at the rate of 0, 1, 2, and 4% (wt wt<SUP>-1</SUP>) with 354 N g m<SUP>-2</SUP> of urea. Cumulative NH₃-N volatilization decreased with increasing addition rate of both materials. Mean value of cumulative NH₃-N volatilization across application rate with PM was lower than that with ZL. CEC increased with increasing addition rate of both materials. While the soil pH increased with ZL, it decreased with PM. Increase in CEC resulted in NH₄<SUP>+</SUP> adsorption on the negative charge of the external surface of both materials. In addition, decrease in soil pH hinders the conversion of NH₄<SUP>+</SUP> to NH₃. Based on the above results, the addition of PM or ZL could be an optimum management to reduce NH₃ volatilization from the soil. However, PM was more effective in decreasing NH₃ volatilization than ZL due to the combined effect of CEC and pH.

목차

Abstract
Introduction
Materials and Methods
Results and Discussion
Conclusion
References

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UCI(KEPA) : I410-ECN-0101-2020-520-000108553