- Improved water infiltration. The agronomic practices that are used to create a firm, smooth surface plus the amount of traffic that the golf course receives can seal off the surface and hamper the ability of water to penetrate deep into the soil. By opening channels through the surface, water can move freely into the soil.
- Addition of sand to the root zone and surface. Sand topdressing helps to create a firm, smooth surface while increased sand in the root zone improves the ability of water to move through the soil and provides space for increased root growth.
- Gas exchange. Exchanging gases, specifically carbon dioxide and oxygen, is important for healthy roots. By opening up channels to exchange these gases, the overall health of the turf is improved and the efficiency with which the plant creates and stores energy is increased. Healthy plants are important in late summer and fall as they prepare to harden off and survive winter.
- Creation of a seed bed for seeding. During aeration the greens are seeded with bent grass. The seed is worked into the root zone to add to the overall density and heartiness of the stand of turf. A healthy turf stand over the long term will be of “perpetual juvenility.” Any perennial turf stand is made up of young, immature seedlings, juvenile plants and older senescing plants. The juvenile plants are the most robust, so a program of regular inter-seeding will help to maintain these levels. This is particularly important as the recovery from the winter injury continues. Optimizing the bentgrass populations will help to reduce the risk from ice cover and hydration injury.
An application of fertilizer will be made following aeration in order to begin the process of preparing the turf for winter and to continue to build up nutrients in the soil to counteract the effects of salt in the irrigation water. The greens will be completed first followed by the tees and then the approaches. As usual, fairways will be aerated and top-dressed in the fall.