Rhizobium is the most important biofertilizer for leguminous crops because it forms nodules on roots and fixes atmospheric nitrogen in symbiosis with the plant. This natural nitrogen supply helps legumes grow more vigorously and reduces dependence on external nitrogen fertilizers.

It helps in improvement in root growth, biomass accumulation, and crop yield in legumes. In addition, Rhizobium can support overall soil fertility and contribute to better nutrient efficiency in the cropping system. It is especially suited for crops such as gram, peas, soybean, groundnut, and other legumes. Its main agronomic strength is efficient biological nitrogen fixation in legume-based farming.