Soil Testing
Soil sample boxes can be picked up at Mayo Garden Centers or Knox Farmers' Cooperatives. The boxes are free of charge. Once your sample is collected, they should be mailed to: Soil, Plant and Pest Center, 5201 Marchant Drive, Nashville, TN 37211-5112. Complete instructions can be found at the site below.
https://ag.tennessee.edu/spp/Pages/soiltesting.aspx