N.D. Admin. Code § 7-15-02-01
Micronutrients mentioned in any form or manner must be registered and guaranteed. Guarantees must be made on the elemental basis; however, the source of the micronutrient must be specified. For example, a micronutrient that is a mixture of EDTA and citric acid bound micronutrient must specify the percentage of total micronutrient in each form. Except guarantees for those water soluble nutrients labeled for ready-to-use foliar fertilizers, read-to-use specialty liquid fertilizers, hydroponic or continuous liquid feed programs and guarantees for potting, garden, and lawn soils, the minimum percentages which are accepted for registration are as follows:
| Element | Minimum Conce., % |
|---|---|
| Calcium (Ca) | 1.0000 |
| Magnesium (Mg) | 0.5000 |
| Sulfur (S) | 1.0000 |
| Boron (B) | 0.0200 |
| Chlorine (Cl) | 0.1000 |
| Cobalt (Co) | 0.0005 |
| Copper (Cu) | 0.0500 |
| Iron (Fe) | 0.1000 |
| Manganese (Mn) | 0.0500 |
| Molybdenum (Mo) | 0.0005 |
| Nickel (Ni) | 0.0010 |
| Sodium (Na) | 0.1000 |
| Zinc (Zn) | 0.0500 |
History: Effective October 1, 2014; amended effective April 1, 2026.
General Authority: NDCC 4.1-40-11
Law Implemented: NDCC 4.1-40