Question

How do biofertilizers increase the fertility of the soil?

Hint:

Biofertilizers promote sustainable agriculture by enhancing soil fertility naturally without harming the environment.

Answer 1

Step 1: Biofertilizers are natural substances that contain living microorganisms, such as bacteria, fungi, and algae, which enhance soil fertility. 

Step 2: These microorganisms improve soil health by fixing nitrogen, decomposing organic matter, and promoting the availability of essential nutrients for plants. For example, nitrogen-fixing bacteria, such as Rhizobium, form symbiotic relationships with legume plants, converting atmospheric nitrogen into a form that plants can use. 

Step 3: Biofertilizers help in reducing the need for chemical fertilizers, making them an eco-friendly alternative that improves soil structure and biodiversity.