Why are earthworms highly useful in agriculture?

The earthworms are highly useful in agriculture because of the following:-

  1. The earthworms keep interchanging the topsoil with the lower layer thus increasing the fertility of the soil.
  2. The earthworm’s excreta is rich in nitrogenous matter which is required for plant growth.
  3. Earthworms are being used in vermiculture for producing high-quality manure.
  4. Many people use earthworms as baits in catching fish.

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