Which technique is commonly used for soil conservation?

Terracing is widely recognized as an effective technique for soil conservation, particularly in hilly or sloped areas. The method involves creating flat areas or steps on a slope, which helps to slow down water runoff and reduces soil erosion. By catching water and allowing it to seep into the ground, terracing improves water retention, enhances soil moisture, and helps to maintain soil structure. This is crucial for sustaining productive agricultural practices and maintaining the health of the ecosystem.

While other options, such as cover cropping, also contribute to soil conservation by preventing erosion and improving soil health, in the context of the question asking specifically about commonly practiced techniques for soil conservation, terracing stands out for its direct application especially in terrains susceptible to erosion. Hydroponics and backyard composting, while beneficial for plant growth and soil amendment respectively, do not primarily focus on soil conservation in the manner that terracing does.