The most commonly found biofertilizers in the market today are the potassium mobilizing biofertilizer, zinc solubilizing biofertilizer, Azotobacter, and many more.

1. What Are
Biofertilizers?

2. Biofertilizers are substances that have microorganisms, which when supplied
to the soil increase the yield of the crop and contribute to plant growth. The
microorganisms used as biofertilizers include rhizobium, azotobacter, and
Azospirilium. The main sources of biofertilizers are fungi, cyanobacteria, and
bacteria.
Biofertilizers are needed to restore soil’s fertility. They are cost-effective and
eco-friendly.

4. The Need for Biofertilizers
Biofertilizers utilise specific microorganisms. These microbes trap
atmospheric nitrogen and change it into nitrites and nitrates and
provide it to the plants. They also change insoluble phosphates into the
form that is needed by the plants.

6. Biofertilizers find widespread use in agriculture as they are a natural form
of fertilizers. They improve the water holding capacity of the soil and
provide necessary nutrients like vitamins, proteins, and nitrogen to the soil.

8. Importance of Biofertilizers
Biofertilizers are important because:
● They enhance the yield of plants and the soil texture
● They do not let pathogens flourish
● They are effective even in semi-arid conditions
● They decrease the risk of plant diseases
● As biofertilizers are natural fertilizers, they protect the environment
from pollutants

9. Classification of Biofertilizers
Biofertilizersareclassified as bacterial biofertilizers, algal biofertilizers,
fungal biofertilizers, and Actinimycetesbiofertilizers, based on the type
of microorganism.

11. Commonly Found
Biofertilizers
The most commonly found biofertilizers in the market today are the
potassium mobilizing biofertilizer, zinc solubilizing biofertilizer,
Azotobacter, and many more. The mode of action of biofertilizers
differs and can be applied in combination or alone.

13. Conclusion
Biofertilizers are living microbes of algal, fungal, and bacterial origin. They
do not cause any kind of pollution and help get rid of several harmful
substances in the soil that can result in plant diseases. They are extremely
helpful and contribute to the growth of the plant.