South Carolina Code of Regulations
Chapter 27 - CLEMSON UNIVERSITY STATE LIVESTOCK-POULTRY HEALTH COMMISSION
Article 13 - FERTILIZER BOARD OF CONTROL
Section 27-175 - Plant Nutrients, Guarantees, Tolerances and Penalties
Current through Register Vol. 48, No. 9, September 27, 2024
A. Nitrogen, phosphorus, potassium. A fertilizer guaranteed to contain one or more of the elements, nitrogen, phosphorus, potassium shall be deemed deficient if the analysis of nutrient is below the guarantee by an amount exceeding the values in the following schedule. The schedule is the investigational allowances shown in the Association of American Plant Food Control Officials Uniform State Fertilizer Bill (official 1982) plus three (3) percent of the guarantee. The fertilizer is also deemed deficient if the overall index value of the fertilizer is below 98 percent.
Guarantee percent |
Nitrogen percent |
Available Phosphoric Acid, percent |
Potash percent |
4 or less |
0.50 |
0.79 |
0.53 |
5 |
0.66 |
0.82 |
0.58 |
6 |
0.70 |
0.85 |
0.65 |
7 |
0.75 |
0.89 |
0.74 |
8 |
0.79 |
0.92 |
0.84 |
9 |
0.84 |
0.95 |
0.92 |
10 |
0.88 |
0.99 |
1.00 |
12 |
0.97 |
1.05 |
1.15 |
14 |
1.05 |
1.12 |
1.29 |
16 |
1.15 |
1.18 |
1.42 |
18 |
1.24 |
1.25 |
1.55 |
20 |
1.33 |
1.32 |
1.68 |
22 |
1.41 |
1.62 |
1.81 |
24 |
1.50 |
1.45 |
1.93 |
26 |
1.59 |
1.51 |
2.05 |
28 |
1.67 |
1.58 |
2.17 |
30 |
1.76 |
1.65 |
2.29 |
32 or more |
1.84 |
1.72 |
2.40 |
A fertilizer shall not be deemed deficient when the overall index value equals or exceeds 100 percent and no more than one primary nutrient is below the guarantee and if the deficiency does not exceed two units or 10 percent of the guarantee.
B. Additional Plant Nutrients.
C. [Deleted]
Statutory Authority: 1976 Code Section 46-25-710