Rhizobium Biofertilizer is a nitrogen-fixing biofertilizer.Rhizobium is the symbiotic nitrogen fixer that assimilates atmospheric nitrogenand fixes in the root nodule, formed in the roots of leguminous plants. Thesebacteria infect the roots of leguminous plants, leading to the formation ofâlumpsâ or ânodulesâ where the nitrogen fixation takes place.
The bacterium also produces enzymes(nitrogenase) that supply a constant source of reduced nitrogen to the hostplant