these bacteria that enriching the soil, are called Nitrobacteria, Nitrobacteria are necessary in nitrogen cycle,the role of nitrifying bacteria are to change the ammonia into a nitrates and nitrites that plants accessible with the nitrogen.
Nitrifying Bacteria, any of a small group of aerobic bacteria (family Nitrobacteraceae) that use inorganic chemicals as an energy source. They are microorganisms that are important in the nitrogen cycle as converters of soil ammonia to nitrates, compounds usable by plants.
