Ind. Code § 15-16-2-31
(a) Before distributing commercial fertilizer in Indiana, the person whose name appears on the label of each brand and grade of the commercial fertilizer must submit:
(e) In addition to the appropriate filing fee set forth in subsection (b), a late filing fee equal to one hundred percent (100%) of the appropriate filing fee is assessed when:
(f) An application under subsection (a) must include the following information:
(3) The guaranteed analysis showing the minimum percentage of plant food claimed in the following order and form:
Total Nitrogen (N)percent
Available Phosphate (P 2 O 5 )percent
Soluble Potash (K 2 O)percent
(h) For unacidulated mineral phosphatic materials and basic slag:
(3) the degree of fineness;
must be guaranteed. For bone, tankage, and other natural organic phosphate materials, only the total phosphate must be guaranteed.
(i) Additional plant food elements or other additives that are determinable by chemical methods may be guaranteed only by permission of the state chemist. The state chemist shall grant permission only if the state chemist determines, with the advice of the dean of agriculture of Purdue University or the dean's designee, that the guarantee would not constitute a misrepresentation and is correct. Additional plant foods that are guaranteed:
(k) A distributor who acts as a blender is not required under subsection (a) to register a custom blend that the distributor produces if the commercial fertilizers blended together to produce the custom blend are registered under subsection (a). However, a distributor who acts as a blender shall provide the state chemist with the following information about each custom blend that the distributor produces:
(3) The guaranteed analysis of the custom blend showing the minimum percentage of plant food claimed in the following order and form:
(C) The percent of soluble potash (K 2 O).
[Pre-2008 Recodification Citation: 15-3-3-4.]
As added by P.L.2-2008, SEC.7. Amended by P.L.81-2009, SEC.18.