Aeration is a type of soil management that uses a machine to punch small holes in the soil surface. It is used as a means of relieving compaction and adding air to the soil in order to encourage deeper root development and healthier turf growth.
Compaction is a naturally occurring event on a golf course because many activities, such as foot and vehicle traffic, compact the soil. This compaction makes it difficult for air and water to penetrate deeper than surface level and also makes it harder for roots to grow. This practice is important especially in the hot summer months when heat can be deadly to turf and greatly affect the quality of the greens.This can cause unhealthy turf which will be visible through the appearance and textures.
Occasionally you may notice a more bumpy texture on the course after aeration. After the turf is aerated, fertilizers can be added and then a fine layer of sand is added to fill the holes. This sand allows for a continued better flow of oxygen, water and nutrients while providing a more even surface for the golf course than the aeration holes. Aeration is one of the most effective ways of strengthening the turf.