Korean Journal of Soil Science and Fertilizer (한국토양비료학회지)

Korean Society of Soil Science and Fertilizer (한국토양비료학회)
권호 표지

Characterization of Phosphate-solubilizing Microorganisms in Upland and Plastic Film House Soils

밭과 시설재배지 토양의 인산가용화 미생물의 특성

  • 서장선 (농촌진흥청 국립농업과학원) ;
  • 권장식 (농촌진흥청 국립농업과학원)
  • Received : 2008.09.19
  • Accepted : 2008.10.11
  • Published : 2008.10.30
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Abstract

With the aim to explore the possible role of phosphate-solubilizing bacteria in soil, we conducted a survey of phosphate-solubilizing microorganisms colonizing in upland and plastic film house soils. Soil EC, pH, organic matter, available phosphate, exchangeable cation such as potassium, calcium and magnesium, and total P of plastic film house soils were higher than those of upland soils. Phosphate-solubilizing bacteria population was higher in plastic film house soils than upland soils, but species of phosphate-solubilizing bacteria was more diverse in the upland soils than the plastic film house soils. There was significant positive correlation between phosphate solubilization and phosphate-solubilizing bacteria in soils. Bacillus, Cedecea, Brevibacillus, Paenibacillus, Pseudomonas, Serratia spp. were isolated from upland soils and Bacillus and Cellulomonas spp. were from plastic film house soils.

토양에서 인산가용화 미생물의 역할을 탐색하기 위해, 밭과 시설재배 토양에 서식하는 인산가용화 미생물의 특성을 조사하였다. 노지 밭 토양에 비해 시설재배지 토양에서 EC가 높았으며, 토양 pH, 유기물, 유효인산, 치환성 양이온 및 총 인도 시설재배지에서 비교적 높은 경향이었다. 인산가용화 세균의 수는 시설재배지 토양이 밭 토양보다 높았으나, 인산가용화 세균의 종류는 밭 토양에 많았다. 인산가용화 세균의 밀도와 인산가용화능 간에 정의 상관이 있었다. 밭 토양에서는 Bacillus, Cedecea, Brevibacillus, Paenibacillus Pseudomonas, Serratia속 등이 시설재배지 토양에서는 Bacillus, Cellulomonas 속 등의 인산가용화 세균이 분리되었다.

Keywords

References

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