Question

What are bio-fertilizers? Describe their role in agriculture. Why are they preferred to chemical fertilizers?

Answer 1

Biofertilizer is a substance which contains living microorganisms which, when applied to seeds, plant surfaces, or soil, colonize interior of and promotes growth by increasing supply availability primary nutrients.

Biofertilizers are preferred because they help to get a high yield of crops by making the soil rich with nutrients and useful microorganisms necessary for the growth of the plants.