(1) Any fertilizer distributed in this state in containers shall have placed on or affixed to the container a label setting forth in clearly legible and conspicuous form the following information:
(a) Net weight;
(b) Brand and grade, except that the grade shall not be required when no primary nutrients are claimed;
(c) Guaranteed analysis; and (d) Name and address of the registrant or licensee. In case of bulk shipments, this information in written or printed form shall accompany each delivery and be supplied to the purchaser at time of delivery.
(2) A custom-mixed farm fertilizer shall be labeled to show the net weight, the guaranteed analysis, or the guaranteed analysis and net weight of each material used in the formulation or both, and the name and address of the licensee and the consumer.