(a) Agricultural liming materials sold, offered or exposed for sale in the state shall have affixed to each package in a conspicuous manner on the outside thereof, a plainly printed, stamped or otherwise marked label, tag or statement, or in the case of bulk sales, a delivery slip, setting forth at least the following information:

(1) The name and principal office address of the manufacturer or distributor;

(2) The brand or trade name of the material;

(3) The identification of the product as to the type of the agricultural liming material;

(4) The net weight of the agricultural liming material;

(5) The minimum percentage of calcium oxide and magnesium oxide and/or calcium carbonate and magnesium carbonate;

(6) Calcium carbonate equivalent as determined by methods prescribed by the Association of Official Analytical Chemists. Minimum calcium carbonate equivalents will be as prescribed by regulation;

(7) The minimum percent by weight passing through United States standard sieves as prescribed by regulations; and

(8) The minimum guaranteed content of available potassium (expressed as soluble Potash, KO) or phosphorous (expressed as phosphoric acid, PO) if claimed.

(b) No information or statement shall appear on any package, label, delivery slip or advertising matter that is false or misleading to the purchaser as to the quality, analysis, type or composition of the agricultural liming material.

(c) In the case of any material that has been adulterated subsequent to packaging, labeling or loading thereof and before delivery to the consumer, a plainly marked notice to that effect shall be affixed by the vendor to the package or delivery slip to identify the kind and degree of such adulteration.

(d) At every site from which agricultural liming materials are delivered in bulk and at every place where consumer orders for bulk deliveries are placed, there shall be conspicuously posted a copy of the statement required by this section for each brand of material.

(e) When the commissioner finds, after public hearing following due notice, that the requirement for expressing the calcium and magnesium in elemental form would not impose an economic hardship on distributors and users of agricultural liming materials by reason of conflicting label requirements among the states, the commissioner may require by regulation thereafter that the minimum percentage of calcium oxide and magnesium oxide and/or calcium carbonate and magnesium carbonate shall be expressed in the following form: