Question

Identify the advantage(s) of microbial biofertilisers.

• A. Increase in nitrogen content of the soil.
• B. It is eco-friendly.
• C. Reduces the soil fertility.
• D. Leads to health issues in animals.

Answer 1

Answer: (A), (B)

It is eco-friendly.

Microbial biofertilisers are substances that contain microorganisms which help to increase the fertility of the soil. Aquatic plants like azolla help to increase the nitrogen content of the soil. They serve as an essential alternative to the use of chemical fertilisers which pollute the environment.