Application: Used for cultivation, isolation and enumeration of soil microorganisms like Rhizobium . Components: Ingredients (g/L): Yeast extract, 1.00 Mannitol, 10.00 Dipotassium phosphate, 0.50 Magnesium sulfate, 0.20 Sodium chloride, 0.10 Calcium carbonate, 1.00 Agar, 15.00