Joe, the first thing I thought of when reading your post/questions was how people here often turn to Clemson Univ. Extension for soil analysis and complex questions like that, so I Googled to see if UT has one. Might find some help there...
UT Extension
Good luck. If you can't get any help there, you might find some good advice in the lawn and garden section of Home Depot or Lowe's... or an independent nursery in your area.