Question

How micro organisms are useful to increase the soil fertility?

Answer 1

microorganisms having symbiotic relationship with plants helps in nitrogen fixation hence increasing soil fertility.

Answer 2

HERE IS YOUR ANSWER.............

Bacteria and microbes live, reproduce and die, at enormous rates and in doing so release a constant stream of nutrients in plant available form. They collect nitrogen and other nutrients from the soil organic matter and mineral particles. They reproduce, so more microbes are collecting and converting nutrients. They die and release what they have collected in a form the plants can use. The plants grow better, assimilate more energy and provide more food for more microbes and so it goes on