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Bacteria enrich the soil with various nutrients such as Nitrogen, Phosphorous and improve the quality and texture of the soil.

For example:

  1. Rhizobium, a symbiotic bacterium lives in the root nodules of leguminous plants and converts atmospheric nitrogen into organic compounds.
  2. Azotobacter and Azospirillum are free-living bacteria which absorb free nitrogen present in soil, air and convert them into amino acids and enrich the soil.
  3. Blue Green Algae such as Anabaena, Nostoc add organic matter to the soil and enrich it.
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