Korean Journal of Environmental Agriculture (한국환경농학회지)

The Korean Society of Environmental Agriculture (한국환경농학회)
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Short-term Effects of Cultivars and Compost on Soil Microbial Activities and Diversities in Red Pepper Field

토양 미생물 활성과 다양성에 미치는 고추 품종과 퇴비의 단기적 효과

  • Park, Kee-Choon (Gyeongsangbuk-do Agricultural Research & Extension Services) ;
  • Kwon, Tae-Ryong (Gyeongsangbuk-do Agricultural Research & Extension Services) ;
  • Jang, Kil-Soo (Gyeongsangbuk-do Agricultural Research & Extension Services) ;
  • Kim, Yeong-Suk (Gyeongsangbuk-do Agricultural Research & Extension Services)
  • Published : 2008.06.30
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Abstract

A field experiment was conducted to investigate the influence of cultivars and compost on soil microbial activities and diversities in a red pepper-grown field. Compost was applied with 0, 30, and 60M/T $ha^{-1}$ in April and then red pepper seedlings of "Yong-go 4" and "Koeun" were transplanted in May 2007. Soil samples were collected in early August 2007. Measurement of microbial activities was based on a dehydrogenase assay and a fluorescein diacetate hydrolysis. Soil microbial community was characterized with Biolog $EcoPlate^{TM}$ and phospholipid fatty acid(PLFA). Red pepper cultivars did not differentiate the selected soil chemical and microbial properties. Soil pH and soil microbial community changed by amending the soil with 30 and 60 M/T $ha^{-1}$ of compost, and the soil organic matter and potassium content, and soil microbial activities increased in soils amended with 60 M/T $ha^{-1}$ of compost. Red pepper cultivar induced a little different soil chemical properties and microbial activity in soils amended with 60 M/T $ha^{-1}$ of compost even though significant differences were not found in those properties. In conclusion the effects of compost on soil chemical and microbial properties were much higher than red pepper cultivars in short-term period but the effects of red pepper cultivars should be investigated in long-term field test.

고추 재배지 포장에서 고추 품종과 퇴비 시용 수준이 토양 미생물 활성과 다양성에 미치는 효과를 검증하고자 본 시험을 실시하였다. 2007년 4월에 퇴비를 30톤과 60톤 $ha^{-1}$을 살포한 다음, 영고4호와 고은 고추를 5월에 정식하였으며 8월 초에 토양을 채취하였다. 토양 미생물 활성은 탈수소 효소활성과 fluorescein diacetate(FDA) 수화도로 측정하였으며, 토양 미생물 군락은 $EcoPlate^{TM}$와 인지질 지방산을 분석하여 조사하였다. 모든 조사 항목에서 품종간 유의성 있는 차이는 발견되지 않았다. 퇴비 30톤과 60톤 $ha^{-1}$처리는 토양의 pH와 미생물 군락을 변화시켰고, 퇴비 60톤 $ha^{-1}$처리는 토양 유기물과 칼리 함량 증가 그리고 탈수소효소 활성과 FDA 수화도 증가에 효과적이었다. 결론적으로 단기적으로는 토양 화학적, 미생물적 특성에 미치는 영향이 고추 재배 품종보다는 퇴비 등의 유기 개량제의 영향이 크지만, 장기적으로 고추재배 품종 특히 '영고4호'가 일반 재배 품종과는 다른 토양 미생물적 특성을 유도할 수 있는 가능성을 보여 주었다.

Keywords

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