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논문 기본 정보

자료유형
학술저널
저자정보
Daniel Son (Gyeongsangnam-do Agricultural Research and Extension Services) Yeon-Kyu Sonn (국립농업과학원) Hang-Yeon Weon (National Institute of Agricultural Sciences) Jae-Young Heo (Gyeongsangnam-do Agricultural Research and Extension Services) Dae-Ho Kim (Gyeongsangnam-do Agricultural Research and Extension Services) Yong-Jo Choi (Gyeongsangnam-do Agricultural Research and Extension Services) Sang-Dae Lee (Gyeongsangnam-do Agricultural Research and Extension Services) Yong Sik Ok (Kangwon National University) Young Han Lee (Gyeongsangnam-do Agricultural Research and Extension Services)
저널정보
한국토양비료학회 한국토양비료학회지 한국토양비료학회지 제49권 제6호
발행연도
2016.12
수록면
783 - 788 (6page)

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초록· 키워드

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Agricultural management of paddy soil depends on the effects of soil microbial activities. The present study evaluated the soil microbial community of 25 paddy soils in Gyeongnam Province by fatty acid methyl ester (FAME). The average of microbial communities in paddy soils were 32.2% of total bacteria, 16.7% of Gram-negative bacteria, 12.9% of Gram-positive bacteria, 2.0% of actinomycetes, 14.9% of fungi, and 1.3% of arbuscular mycorrhizal fungi. The communities of total bacteria (34.9%) and Gram-negative bacteria (19.4%) in soils with 30∼35 g kg<SUP>-1</SUP> of organic matter were significantly larger than those in soils with other organic matter levels. However, soils with 20∼30 g kg-1 of organic matter had significantly low ratio of cy17:0 to 16:1ω7c and cy19:0 to 18:1ω7c as compared with soils with 30∼35 g kg<SUP>-1</SUP> of organic matter, indicating microbial stress decreased (p < 0.05). In principal component analyses of soil microbial communities, Gram-negative bacteria should be considered as a potential responsible factor for the obvious microbial community differentiation that was observed between the two different organic matter levels in paddy fields. Thus, soils containing 20∼30 g kg<SUP>-1</SUP> of organic matter were responsible for strong effect on microbial biomass and stress in paddy fields.

목차

Introduction
Materials and Methods
Results and Discussion
Conclusions
References

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UCI(KEPA) : I410-ECN-0101-2017-523-001984595