Nitrogen is essential for growth of stems and roots. Phosphorous is essential for growth of root, seed and flowers. Potassium is essential for growth of buds and ripening of fruits. Nitrogen Fixing Bacteria converts atmospheric nitrogen gas into solid nitrogen compounds that can be absorbed by plants. Phosphate Solubilizing Bacteria dissolves unavailable phosphorus compounds in the root zone of the plant into a soluble form and makes it available along with other elements to the plant. Potash Mobilising Bacteria increases the resistance of crops to hot and dry conditions, insects, pests and diseases.