subsoil

Earthworms burrow deep into the subsoil.

Some movement in the building will occur as it settles into the subsoil.

In loessal regions and alluvial valley fills of the western United States, both surface soil and subsoil are commonly friable.

The roots of the plants extend deep into the subsoil.

Farmers often test the subsoil to determine its nutrient levels.

Subsoil erosion can lead to decreased crop productivity.

The subsoil is an important factor in determining the quality of the soil.

Certain plants have adapted to thrive in poor subsoil conditions.

Subsoil compaction can restrict root growth and water infiltration.

The subsoil contains minerals and organic matter essential for plant growth.

Agricultural practices can impact the health of the subsoil.

Soil scientists study the properties of subsoil to understand its role in ecosystems.

Improving subsoil drainage can help prevent waterlogging in fields.