IF you think you got some issues and want to invest the time and money to correct them, get a tissue nutrient sample done.
Is this the same place you have drainage issues? Some soil issues can be from too much moisture for too long.
Might be to late in the seaon to put out some fertilizer. Could try potash in one spot, nitrogen in another. IF you got a spot you need ot do active soil health building from a rather poor state, I don't think theres an issue giving if fertilizer a few years. Ben turning around some rather bad spots the past 3 years up at camp that way.