I just had my yard core aerated along with seed. Last fall was the first time my yard was core aerated and it made a difference, except it was late October and did not get the full benefits of the aeration. I still have approximately a 40x40 area with various dead areas with no grass. Should I put down fertilizer now or wait a few weeks until the grass begins to grow? Secondly, what type of fertilzer do you recommend? In addition, I water the area each morning for an hour.