Potash solubilizing bacteria employ several mechanisms to convert insoluble potassium into soluble forms: 

• Acid Production: PSB produce organic acids such as citric acid, oxalic acid, and tartaric acid. These acids help in dissolving potassium-bearing minerals (such as feldspar and mica) by lowering the pH and releasing soluble potassium ions that plants can absorb. 

• Enzymatic Activity: Some PSB produce enzymes that break down complex potassium compounds in the soil, converting them into simpler, soluble forms that are available for plant uptake. 

• Chelation: PSB can produce chelating agents that bind to potassium ions, effectively solubilizing them and making them available to plants. 

By employing these mechanisms, potash solubilizing bacteria play a crucial role in enhancing potassium availability in the soil, supporting plant health, and contributing to sustainable agricultural practices.