Korean Journal of Organic Agriculture (한국유기농업학회지)

Korean Association of Organic Agriculture (한국유기농업학회)
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Biological Characteristics of Organic Soil applying Rye (Secale cereal L.) as Green Manure for the Long Term

장기간 호밀을 풋거름작물로 시용한 유기농 토양의 생물학적 특징

  • 백계령 (농촌진흥청 국립식량과학원 고령지농업연구소) ;
  • 이계준 (농촌진흥청 국립식량과학원 고령지농업연구소) ;
  • 김태영 (농촌진흥청 국립식량과학원 고령지농업연구소) ;
  • 지삼녀 (농촌진흥청 국립식량과학원 고령지농업연구소) ;
  • 김창석 (농촌진흥청 국립식량과학원 고령지농업연구소) ;
  • 이형복 (농촌진흥청 국립식량과학원 고령지농업연구소) ;
  • 이은경 (농촌진흥청 국립식량과학원 고령지농업연구소) ;
  • 송재경 (농촌진흥청 국립농업과학원 농업생물부)
  • Received : 2018.04.10
  • Accepted : 2018.07.02
  • Published : 2018.08.31
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Abstract

In this study, microorganism community characteristics of organic managed soil which applied rye (Secale cereal L.) as green manure for 25 years, were determined. The chemical properties of organic soil showed high level of organic matter and available $P_2O_5$, while the level of exchangeable cation was low. The analysis of dehydrogenase activity and carbon source utilization indicated that the values in on organic soil were significantly higher than those of the control. It suggested that the microorganism community of organic soil had high microorganism activity, compared to the control. In addition, when the 16S rRNA gene-targeted NGS (Next generation sequencing) analysis was conducted to estimate the class of bacterial community, the class level of bacterial taxon composition on organic soil showed higher portion of Sphingobacteriia, Acidobacteriia, Gammaproteobacteria, Solibacteres and Planctomycetia. By base on the results of various reports in which organic managed soil had high portion of Acidobacteriia and Planctomycetia, the characteristic of taxon composition in organic soil, which showed the high percentages of Ktedonobacteria, Sphingobacteriia, Acidobacteriia and Gammaproteobacteria, was resulted from the application of rye as a green manure for the long term. However, further researches were needed because the crop effect was not considered in this study.

Keywords

References

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