We are spraying greens today with a fungicide and foliar fertilizer combination. While there are not too many fungal diseases this time of year, we do have to be concerned with snow mold and the start of cool season fungal diseases like pythium root dysfunction and take-all patch. On putting surfaces, we maintain a strong preventative fungicide program that has little room for error.
In addition to the range tee aerification and seeding, I also applied a 'starter fertilizer.' It is called this because it is ideal for starting seed. A young turf plant (or any plant for that matter) requires Phosphorous for root development. The 2nd number in a fertilizer analysis is just that...Phosphorous. In fact, most starter fertilizers have a 1:2:1 ratio of Nitrogen: phosphorous: Potassium. It is interesting seeing research plots of newly established turf where phosphorous inputs were variable. The more phosphorous added, gave the quickest established lawn. Obviously, a good root system ensures the plant is able to uptake other nutrients.