Where can you find nitrogen fixation?

Nitrogen fixation primarily occurs in the root nodules of leguminous plants, where symbiotic bacteria like Rhizobium convert atmospheric nitrogen into a usable form for the plant. Additionally, certain free-living bacteria, such as Azotobacter and Clostridium, can fix nitrogen in the soil. Some cyanobacteria also contribute to nitrogen fixation in aquatic environments and soil. Overall, nitrogen fixation is crucial for enriching soil fertility and supporting plant growth.