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논문 기본 정보

자료유형
학술저널
저자정보
Dong Sung Lee (Chungnam National University) Jae-Bong Lee (Chungnam National University) Myoung-Yun Lee (Chungnam National University) Ri-Na Joo (Chungnam National University) Kyo-Suk Lee (Chungnam National University) Se-Won Min (Daejeon Doonsan Girl’s High School) Byeong-deok Hong (Korea Rural Community) Doug-Young Chung (Chungnam National University)
저널정보
충남대학교 농업과학연구소 Korean Journal of Agricultural Science Korean Journal of Agricultural Science Vol.43 No.3
발행연도
2016.9
수록면
424 - 431 (8page)

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초록· 키워드

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The nutrients in livestock manure produced during fermentation processes in public livestock recycling centers are used as fertilizers. However, the large amounts of swine manure produced in intensive livestock farms can be a nonpoint source of pollution. In this experiment, we investigated the chemical properties, inorganic components, and heavy metal contents in 101 samples of liquid swine manure collected from 28 public livestock recycling centers throughout the nation. Results showed that the average pH of the samples was alkaline (pH range 5.18 to 9.54), and their maximum EC was 53.2 dS m<SUP>-1</SUP>. The amounts of total nitrogen and total phosphorus were in the range of 1000 - 2000 and 200 - 800 mg L<SUP>-1</SUP> while potassium, which constituted 47% of the total inorganic ions recovered from the liquid swine manure, amounted to 1500 mg L<SUP>-1</SUP>. The most distinctive heavy metals recovered from the liquid swine manure were copper and zinc although the amounts of both heavy metals were much lesser than those of the standards as livestock liquid fertilizer set by the Rural Development Administration. On the other hand, the amount of nitrogen decreased rapidly with an increasing fermentation period from immature to mature, assumed to be lost as volatile compounds, such as ammonia, which are the major odor components during the fermentation process.

목차

Abstract
Introduction
Materials and Methods
Results and Discussion
Conclusion
References

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