Michigan Compiled Laws, Chapter 324. Natural Resources and Environmental Protection § 324.8501a

(a) “Mixed fertilizer” means a fertilizer containing any combination or mixture of fertilizer materials.

(b) “Nitrogen fertilizer” means a fertilizer that contains nitrogen as a component.

(c) “Official sample” means a sample of fertilizer taken by a representative of the department of agriculture in accordance with acceptable sampling methods under section 8510.  1

(d) “Order” means a cease and desist order issued under section 8511.  2

(e) “Package” or “packaged” means any type of product regulated by this part that is distributed in individual labeled containers.

(f) “Percent” and “percentage” mean the percentage by weight.

(g) “Person” means an individual, partnership, association, firm, limited liability company, or corporation.

(h) “Primary nutrients” means total nitrogen, available phosphate, or soluble potash, or any combination of those nutrients.

(i) “Registrant” means the person who registers a product under this part.

(j) “Soil conditioner” means any substance that is used or intended for use to improve the physical characteristics of soil, including, but not limited to, materials such as peat moss and peat products, composted products, synthetic soil conditioners, or other products that are worked into the soil or are applied on the surface to improve the properties of the soil for enhancing plant growth. Soil conditioner does not include guaranteed plant nutrients, agricultural liming materials, pesticides, unmanipulated animal or vegetable manures, hormones, bacterial inoculants, and products used in directly influencing or controlling plant growth. A soil conditioner for which claims are made of nutrient value is considered a fertilizer for the purposes of this part.

(k) “Specialty fertilizer” means any fertilizer distributed primarily for nonfarm use, such as use in connection with home gardens, lawns, shrubbery, flowers, golf courses, parks, and cemeteries, and may include fertilizers used for research or experimental purposes.

(l) “Ton” means a net weight of 2,000 pounds avoirdupois.

(m) “Use” means the loading, mixing, applying, storing, transporting, or disposing of a fertilizer.