CBSE Class 12-science Answered

Hi Sanal,

Microbes can be used both as fertilizers and pesticides and can be called biofertilisers and biopesticides. For example,

1. Microbes are used as biofertilisers to enrich the soil nutrients, e.g., Rhizobium, Azotobacter,Azospirillum, etc., which can fix atmospheric nitrogen in the soil.

2. Bacillus thuringiensis bacteria act as biopesticides to control the growth of insect pests.

3. Trichoderma, fungal species, is effective bicontrol agent of several plant pathogens.