What type of soil is referred to as the most fertile?

Loam is considered the most fertile type of soil due to its balanced composition of sand, silt, and clay. This combination provides optimal conditions for plant growth. Loam has good drainage, along with the ability to retain moisture, making it versatile for a wide range of crops. Additionally, it has a rich organic matter content, which contributes to nutrient availability. The structure of loam allows for proper aeration and root penetration, ensuring that plants receive adequate oxygen and nutrients. This balance of properties enables loam to support healthy plant life better than the other soil types mentioned.