As used in this chapter, "grade" means the minimum percentages of the following elements stated in the following order:

1. (1) Total nitrogen (N).
2. (2) Available phosphate (P 2 O 5 ).

3. (3) Soluble potash (K 2 O).

   [Pre-2008 Recodification Citation: 15-3-3-3(5).]

As added by P.L.2-2008, SEC.7.