Agronomic Services — Soil Testing
Most of the year (generally April through November), routine NCDA&CS soil tests are provided at "no direct cost" to N.C. residents because of funding derived from a statewide fee on commercial fertilizer.
Session Law 2009-451 Page 133
From ~ Thanksgiving through March, however, a peak-season fee of $4 is charged for the processing of all soil samples.
Session Law 2013-360 Page 186