Iowa Admin. Code r. 21-43.3
Specialty fertilizer products shall be labeled to show the following information, if not appearing on the face or display side in a readable and conspicuous form, shall occupy at least the upper third of a side of the container.
Net Weight
Brand Name
Grade
Guaranteed Analysis:
Total Nitrogen (N) __________%
__________% Ammoniacal Nitrogen**
__________% Nitrate Nitrogen**
__________% Water Insoluble Nitrogen*
Available Phosphoms (P) or P2O5 or both __________%
Soluble Potassium (K) or K2O or both __________%
Additional Plant Nutrients, if claimed, and in the order and not less than the minimum percentage as shown in 43.1(200).
**Potential Acidity or Basicity__________% or____________lbs.
Calcium Carbonate Equivalent per ton. Name and Address of Registrant
NOTES:
*If claimed or the statement "organic" or "slow acting nitrogen" is used on the label.
**If claimed or required.
Iowa Admin. Code r. 21-43.3