The Fermentation Conditions of Strain DY-1 in Soluble Phosphorus
By means of single factor test and orthogonal test,we optimized the best condition of dissolved phosphorus strain Bacillus licheniformis DY-1. The ability of the dissolving phosphorus strain was measured by using colorimetric method of molybdenum antimonyanti. The experimental results show that with 1%glucose as carbon source,and 0.1%ammonium sulphate as nitrogen source,the phosphate solubilizing amount of B. licheniformis DY-1 is the largest. Best soluble phosphorus conditions were temperature 30℃,pH 8,culture time 72 h,3%inoculation amount.