What is one natural technique to improve soil fertility?

Applying organic matter, such as compost or manure, is a natural technique to improve soil fertility because it enhances the soil's nutrient content and structure. Organic matter adds essential nutrients like nitrogen, phosphorus, and potassium, which are vital for plant growth. Additionally, it improves the soil's ability to retain moisture and enhances microbial activity, promoting a healthy ecosystem in the soil. This process contributes to the formation of humus, which further increases soil fertility over time.

In contrast, while chemical fertilizers can provide immediate nutrient availability, they do not enhance soil structure or long-term fertility as effectively as organic amendments. Synthetic soil amendments may offer specific nutrients but often lack the holistic benefits of organic matter. Genetically modified crops may have improved resistance to pests or better yield potential but do not inherently contribute to soil fertility in the same way organic amendments do. Therefore, using organic matter is a more sustainable and natural approach to enhancing soil health.