Question

How do the earthworms help to enhance the fertility of the soil?

Answer 1

Earthworms enhance soil fertility in several important ways:

• They break down organic waste into nutrient-rich compost (casts), releasing plant-available nutrients such as nitrates and phosphates that plants need.
• Their feeding and digestion speed up decomposition and nutrient mineralization, making nutrients accessible to plant roots.
• By burrowing and mixing soil layers, they help incorporate organic matter throughout the soil, which supports long‑term fertility and biological activity.
• Their activity improves soil structure and porosity, which increases aeration and water infiltration conditions that benefit roots and soil organisms.
• Worm casts also encourage beneficial microbial activity and help maintain the living ecosystem of the soil that organic farming aims to protect.