Current through Register Vol. XLI, No. 50, December 13, 2024
Section 61-6-5 - Secondary And Micronutrient Elements5.1. The basicity or acidity of a fertilizer expressed in terms of calcium carbonate equivalent in multiples of one hundred (100) pounds per ton, or percent in multiples of five percent (5%), may be shown on the application for registration and on the label.5.2. The manufacturer or distributor shall register and guarantee additional plant nutrients besides nitrogen, phosphorus and potassium, when mentioned or claimed on the label or container. Guarantees shall be made on the elemental basis. Source of the elements guaranteed shall be provided to the Commissioner on request. Except guarantees for those water soluble nutrients labeled for hydroponic or continuous liquid feeding programs, when claims for the nutrients are made on the label, container or application for registration, the minimum percentages which shall be accepted for registration are as follows: ELEMENT PERCENT |
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 |
Sodium (Na) 0.1000 |
Zinc (Zn) 0.0500 |
5.3. Manufacturer or distributor guarantees or claims for the additional plant nutrients in subsection 5.2 of this section are the only ones which will be accepted. Proposed labels and directions for use of the fertilizer shall be furnished to the Commissioner with the application for registration upon request.5.4. Warning or caution statements are required on the label of any product which contains 0.03 percent or more of Boron in a water soluble form, or 0.001 percent or more of Molybdenum. Any of the elements listed in subsection 5.2 of this section which are guaranteed shall appear in the order listed immediately following guarantees for the primary nutrients: nitrogen, available phosphate, and soluble potash.5.5. Tolerances for determining deficiencies in secondary and micronutrient elements are those recommended by the Association of American Plant Food Control Officials.