Screening and Identification of Phosphate-solubilizing Microorganism（PSM）in Burdock Rhizosphere Soil and Optimization of Phosphate-solubilizing Conditions
SUN Ke，GENG Fengying，YU Qiuju，WANG Feng*
Department of Medicine and Food Science，Xuzhou Engineering Vocational and Technical College，Xuzhou 221006，Jiangsu，China
Abstract Taking phosphate-solubilizing circle method and soluble phosphorus content determination
method，this experiment screened out PSM-5 strain with stronger phosphate-solubilizing ability from Arctium
lappa L. rhizosphere soil and optimized the phosphate-solubilizing conditions on screened strains．The results
indicated that the strain PSM-5 was tentatively identified as Bacillus subtilis，and after optimization the optimal
conditions for phosphate solubilization were initial 3.79 pH value，28.46 ℃ fermentation temperature and 10.46
g · L-1 salinity．These results have provided phosphate-solubilizing bactericide for next step development of
bio-organic fertilizer dedicated for Arctium lappa L．
SUN Ke,GENG Fengying,YU Qiuju等. Screening and Identification of Phosphate-solubilizing Microorganism（PSM）in Burdock Rhizosphere Soil and Optimization of Phosphate-solubilizing Conditions[J]. China Vegetables, 2021, 1(1): 66-72.
