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