Question

State 5 sources of bio fertilisers

Answer 1

Answer: biofertilizers are those microbes which enrich the soil with many nutrients required for proper plant growth.

Explanation:

It's sources are Rhizobium, Azotobacter, Azospirilium make the soil rich in nitrogen.

Pantoea agglomeran and Pseudomonas putida and phosphorus to the soil.