What is topdressing?

• A. Application of a uniform layer of soil material to smooth the surface, improve soil balance, and aid seed-to-soil contact; it also helps with leveling and drainage.
• B. Seasonal fertilization to enhance green color.
• C. Aeration process to relieve soil compaction.
• D. Application of organic mulch on turf.

Answer: (A)

Topdressing is the practice of applying a uniform layer of soil material over the turf surface. The goal is to smooth the surface, improve the soil balance in the rootzone, and promote better seed-to-soil contact for germination and establishment. It also helps level uneven areas and enhances drainage by creating a more even profile. In practice, it’s done after aeration to fill holes and integrate into the turf, using materials like sand, loam, or compost depending on the turf and goals. It’s not about providing nutrients (that’s fertilization), not the aeration process itself, and while mulch is used in other settings, topdressing focuses on adding a soil layer to improve surface quality and rootzone conditions.