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밭토양 유기재배가 토양 미생물 생태에 미치는 영향

Impacts of Organic Farming System on the Soil Microbial Population in Upland Soil

  • Lee, Young-Han (Gyeongsangnam-do Agricultural Research and Extension Services) ;
  • Sonn, Yeon-Kyu (National Academy of Agricultural Science, RDA) ;
  • Ahn, Byung-Koo (Jeollabuk-do Agricultural Research and Extension Services) ;
  • Lee, Seong-Tae (Gyeongsangnam-do Agricultural Research and Extension Services) ;
  • Shin, Min-A (Gyeongsangnam-do Agricultural Research and Extension Services) ;
  • Kim, Eun-Seok (Gyeongsangnam-do Agricultural Research and Extension Services) ;
  • Song, Won-Doo (Gyeongsangnam-do Agricultural Research and Extension Services) ;
  • Kwak, Youn-Sig (Department of Applied Biology, Gyeongsang National University)
  • 투고 : 2011.08.25
  • 심사 : 2011.10.03
  • 발행 : 2011.10.31

초록

밭토양에서 콩 생육단계별 유기농업과 관행농업의 토양 미생물 개체수 변화를 2009년 5월부터 2010년 10월까지 평판배지 분석법으로 조사하였다. 콩 생육기간 동안 토양의 미생물 개체수는 곰팡이 개체수를 제외한 호기성 세균,그람음성 세균 및 바실러스 개체수는 유기농업이 관행농업에 비해 많았다. 콩 생식생장기에 유기농업 토양은 호기성 세균, 그람음성 세균, 바실러스 개체수가 관행농업 보다 거의 두배 이상 많았다. 바실러스 개체수는 밭토양에서 유기농업과 관행농업을 구분할 수 있는 잠재적인 지표로 조사되었다.

The present study evaluated the seasonal changes of the soil microbial population by selected media in an organic farming system (OFS) with rye rotation cropping management compared to those in a conventional farming system (CFS) with chemical fertilizers, pesticide and herbicide from May 2009 to October 2010 in an upland field. With the exception of fungi, populations of aerobic bacteria, Gram-negative bacteria, and Bacillus spp. were higher in the OFS soil during soybean-growing stages. In addition, populations of aerobic bacteria, Gram-negative bacteria, and Bacillus spp. in the OFS soil were nearly two times more than those in the CFS soil on reproductive growth stages. Our findings suggested that Bacillus spp. should be considered as responsible factor for microbial population differentiation observed between the OFS and the CFS in upland fields.

키워드

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피인용 문헌

  1. Effects of Long-Term Fertilization on Microbial Diversity in Upland Soils Estimated by Biolog Ecoplate and DGGE vol.47, pp.6, 2014, https://doi.org/10.7745/KJSSF.2014.47.6.451
  2. Effect of Bacillus subtilis S37-2 on Microorganisms in Soil and Growth of Lettuce (Lactuca sativa) vol.49, pp.5, 2016, https://doi.org/10.7745/KJSSF.2016.49.5.621
  3. Impacts of Soil Type on Microbial Community from Paddy Soils in Gyeongnam Province vol.44, pp.6, 2011, https://doi.org/10.7745/KJSSF.2011.44.6.1164