Effects of Amendments on the Phosphate-solubilizing Bacteria in Rice Paddy Soils

논 토양 인산가용화세균에 대한 개량제 시용효과

  • 서장선 (농촌진흥청 국립농업과학원) ;
  • 노형준 (농촌진흥청 국립농업과학원) ;
  • 권장식 (농촌진흥청 국립농업과학원)
  • Received : 2008.09.01
  • Accepted : 2008.09.30
  • Published : 2008.10.30


Phosphate soubilized by microbes can be easily absorbed by plant as the element diffuses into soil solution. The microbes related to phosphate solubilizing activity are affected by the soil amendments such as rice straw compost, and lime. This study was performed to evaluate the effect of amendments to phosphate solubilizer in rice paddy soils. Available phosphate concentration was increased with the ratio of phosphate-solubilizing bacteria to aerobic bacteria in the rice paddy soils. The ratio was high in the plots applied with lime, silicate, and rice straw compost. Phosphate-solubilizing bacteria isolated from the soil were Aquasipirillum, Arthrobacter, Bacillus, Flavobacterium, Micrococcus and Micromonospora, Pseudomonas species. The highest dominant bacterial species was Pseudomonas, and Bacillus was followed.


Paddy soil;Phosphate-solubilizing bacteria;Compost;Lime


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