지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2011.1
- 수록면
- 434 - 441 (8page)
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초록· 키워드
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Soil management for organic farming depends on the effects of soil microbial activities and aggregation. The seasonal changes were evaluated in the soil microbial community by fatty acid methyl ester (FAME) and total glomalin analysis in an organic farming system (OFS) with no-till management compared to those in a conventional farming system (CFS) with tillage and chemical amendments in a flooded paddy. The average concentrations of individual FAMEs and glomalin in the OFS were significantly higher than those in the CFS during rice-growing stages (p<0.001). OFS had significantly lower ratio of $cy17:0/16:1{\omega}7c$ and higher ratio of monounsaturated fatty acids to saturated fatty acids compared with those of CFS (p<0.001), indicating that microbial stress decreased due to organic soil inputs and the lack of chemical amendments, whereas communities of Gram-negative bacteria in OFS soils were significantly larger than those in CFS soils (p<0.001). Gram-negative bacteria should be considered as potential factor responsible for the clear microbial community differentiation observed between the OFS and the CFS in flooded paddy fields.
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