Agricultural soil is the layer of earth that supports the growth of crops and plants. It is composed of minerals, organic matter, water, and air, which together provide essential nutrients for plant development. Healthy agricultural soil is crucial for food production and sustainability, as it influences crop yield and quality. Different types of agricultural soil, such as loam, clay, and sandy soil, have varying properties that affect their ability to retain moisture and nutrients. Farmers often test and manage their soil to ensure it remains fertile, using practices like crop rotation and cover cropping to enhance soil health and productivity.