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¶ Safflower (Carthamus tinctorius)
¶ A: Mid-season
Plant Part: Youngest fully mature leaf from top
Sampling Procedure: Collect samples from 35 to 40 plants. Begin from the top of the plant and remove the youngest, fully developed leaf and petiole.
| Analysis | Tissue Concentration Guidelines | |||||||
| Low/Marginal Range | Sufficiency Range | Excessive, toxic? | ||||||
| Nitrogen, % N | 2.50 | - | 3.00 | 3.00 | - | 4.50 | ||
| Phosphorus, %P | 0.15 | - | 0.20 | 0.20 | - | 0.50 | ||
| Potassium, % K | 1.20 | - | 1.70 | 1.70 | - | 3.50 | ||
| Calcium, % Ca | 0.50 | - | 1.30 | 1.30 | - | 2.50 | ||
| Magnesium, % Mg | 0.15 | - | 0.25 | 0.25 | - | 0.70 | ||
| Sulfur, % S | 0.20 | - | 0.25 | 0.25 | - | 0.55 | ||
| Zinc, ppm Zn | 12 | - | 20 | 20 | - | 50 | ||
| Iron, ppm Fe | 30 | - | 50 | 50 | - | 350 | ||
| Manganese, ppm Mn | 20 | - | 40 | 40 | - | 100 | ||
| Copper ppm Cu | 3 | - | 5 | 5 | - | 15 | ||
| Boron, ppm B | 15 | - | 30 | 30 | - | 50 | ||
| Nitrogen-to-sulfur ratio (N:S) | 7 | - | 10 | 10 | - | 15 | ||
| Sodium, % Na | - | 200 | - | 5000 | ||||
| Chloride, % Cl | - | - | ||||||
¶ Figure A.
