What is the main purpose of using biofertilisers?

What is the main purpose of using biofertilisers?
  1. To avoid heavy use of toxic pesticides for controlling pests
  2. To produce industrial products
  3. To reduce dependence on chemical fertilisers
  4. To convert milk into curd

Solution

Farmers use biofertilisers regularly in their fields to replenish soil nutrients and to reduce dependence on chemical fertilisers.

Asked in: NCERT

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