Other nutrients are rarely if ever limiting and should not need to be applied. The vigorous growth which results from aerification increases the turf's stress tolerance, improves nutrient uptake, and can reduce weed invasion. Aerification can also manage thatch buildup although this is rarely a concern on athletic fields and other high traffic areas. Level C athletic fields and areas will likely never be aerified, although an aerification program should be considered if better turf performance is desired. Topdressing Athletic fields require topdressing to maintain a uniform surface for safety and playability reasons and to maintain a crown which is imperative for surface drainage.
Soil based fields rely almost solely on surface drainage.
Level C athletic fields and areas will not be topdressed, although an occasional rut or rodent hole may need to be filled in with soil. Overseeding Overseeding is performed to help thicken the turf stand to provide safer turf, avoid excessive compaction, minimize soil erosion, and inhibit weed encroachment. Level C fields will not be overseeded as a rule, although occasionally large bare areas may need to be overseeded if damaged by vehicles or other forces. Level C fields and areas need not be irrigated following overseeding. Since irrigation will not be used, overseeding should be conducted in the late summer, early autumn to help ensure suitable weather conditions for turf establishment.