Earthworms are among the most important soil dwelling invertebrates. Their activity affects both biotic and abiotic soil properties, in turn affecting plant growth. This suggests that earthworms stimulate plant growth predominantly through releasing nitrogen locked away in residue and soil organic matter.Click to see full answer. Regarding this, how do earthworms affect plant growth?The little bugs help the soil become more nutrient-rich by breaking down dead plant materials. This process creates humus, a natural fertilizer that plants use to grow taller and healthier. Earthworms also help plants by making tunnels and holes so the soil gets more air and water to the roots.Similarly, what are the benefits of earthworms? Benefits of earthworms By their activity in the soil, earthworms offer many benefits: increased nutrient availability, better drainage, and a more stable soil structure, all of which help improve farm productivity. Worms feed on plant debris (dead roots, leaves, grasses, manure) and soil. Similarly, are earthworms good for plants? Earthworms act like tiny plows when they live in a garden. As earthworms move through the soil of a garden, they make tunnels. Just like plowing, these tunnels allow air and water to get to the roots of plants. These are all important nutrients that help garden plants grow and stay healthy.How can we increase earthworm population in soil? Below is an outline of the way in which you can encourage earths in your soil. Regular liming. Earthworms do not like acid soils. Increase soil organic matter. Reduce use of some fertilisers and agrichemicals. Soil moisture. Improve drainage. Reduce soil compaction. Reduce cultivation.