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논문 기본 정보

자료유형
학술저널
저자정보
Yoo, Jin (Department of Environmental and Biological Chemistry, College of Agriculture, Life and Environment Sciences, Chungbuk National University) Woo, Sun-Hee (Department of Crop Science, Chungbuk National University) Park, Ki-Do (Department of Crop Environment, National Institute of Crop Science, RDA) Chung, Keun-Yook (Department of Environmental and Biological Chemistry, College of Agriculture, Life and Environment Sciences, Chungbuk National University)
저널정보
한국응용생명화학회 Applied Biological Chemistry Applied Biological Chemistry 제59권 제6호
발행연도
2016.1
수록면
787 - 797 (11page)

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초록· 키워드

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The effect of no-tillage and conventional tillage practices on the nitrous oxide ($N_2O$) emissions from the upland soil was evaluated in the cultivation of soybean in the temperate climate from June 2014 to September 2015 in Korea. In addition, we investigated the links between $N_2O$ emitted from field soil and different kinds of fertilizers. An experimental plot was composed of two main sectors that were no-tillage and conventional tillage, and then they were subdivided into four plots according to types of fertilizers: CF, chemical fertilizer, LP, liquid pig manure, HV, hairy vetch, and NF, non-fertilizer. The monthly averages of $N_2O$ emissions were significantly different from each other during the growing seasons of soybean; in July, $N_2O$ emission was significantly the highest, whereas, in September, its emission was the lowest (LSD, p = 0.05). In 2015, compared to those treatments in conventionally-tilled soils, the cumulative $N_2O$ emissions in NK, CF, HV, and LP of no-tilled soils were reduced by 20, 28.7, 35.7, and 28.1 %, respectively (LSD, p = 0.05). It was shown that $N_2O$ emission was significantly reduced in the different fertilizer treatments of no-tilled soils, compared to those of conventionally-tilled soils, respectively. Furthermore, the cumulative $N_2O$ emission in no-tilled soils was reduced by 0.03-0.09 kg $N_2O$ compared to that in tillage soils. It was found that soil $N_2O$ emission was about 11 % less in LP than in CF. Results obtained from our study indicate that the use of no-tillage practice and liquid pig manure, rather than tillage practice and chemical fertilizer, can decrease the $N_2O$ emission.

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