Okla. Stat. tit. 2, § 2-8-77.13: Adulteration

No person shall distribute an adulterated fertilizer product. A

fertilizer shall be adulterated if:

1. It contains any deleterious or harmful substance in

sufficient amount to render it injurious to beneficial plant life,

animals, humans, aquatic life, soil, or water when applied in

accordance with directions for use on the label;

2. If adequate warning statements or directions for use which

may be necessary to protect plant life, animals, humans, aquatic

life, soil, or water are not shown upon the label;

3. Its composition falls below or differs from that which it is

purported to possess by its labeling; or

4. It contains unwanted crop seed or weed seed.