Scientists compared the nutrient levels in different topsoils across the region.

The contractors plan to topsoil the entire lot before excavation begins.

Before planting the vegetable bed, she spread a layer of topsoil to give seedlings the best start.

Before excavation started, the crew performed topsoiling to strip and set aside the fertile surface soil for future restoration.

After the heavy rains, the landscapers topsoiled the new garden beds to improve drainage.