How do biofertilisers enrich the fertility of the soil?

How do fertilizers enrich the fertility of the soil ?

How do biofertilizers enrich the fertility of soil ?

Do you think microbes enrich the fertility of soil ? If yes, how ?

Biofertilisers are organisms that enrich the nutrient quality of the soil. Which one is not a source of biofertilisers?

What are fertilizers? What are mixed fertilzers? Why do farmers add fertilizer to the soil? How should we store fertilizes?

Describe the role of blue green algae in the fertility of soil.

What is the result of decrease in rainfull and fertility of soil?

Biofertilizers are those organisms which enrich the soil nutrients and increase the soil fertility. The extent of use of biofertilizers is debatable among the workers. Biofertilizers are said to be symbiotic associations.