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¶ Rye (Secale cereale)
¶ A: Early growth to pre-boot
Plant Part: Whole stems
Sampling Procedure: Collect 25 to 30 whole stems (tillers), cutting off about ½ inch above ground level. At least a pint of loosely packed tissue should be submitted for analysis. Place sample in a paper bag, not a plastic bag, for shipment to the laboratory.
| Analysis | Tissue Concentration Guidelines | |||||||
| Low/Marginal Range | Sufficiency Range | Excessive, toxic? | ||||||
| Nitrogen, % N | 2.00 | - | 2.50 | 2.50 | - | 4.00 | ||
| Phosphorus, %P | 0.15 | - | 0.20 | 0.20 | - | 0.40 | ||
| Potassium, % K | 1.50 | - | 2.00 | 2.00 | - | 3.80 | ||
| Calcium, % Ca | 0.15 | - | 0.20 | 0.20 | - | 0.75 | ||
| Magnesium, % Mg | 0.10 | - | 0.15 | 0.15 | - | 0.50 | ||
| Sulfur, % S | 0.10 | - | 0.15 | 0.15 | - | 0.30 | ||
| Zinc, ppm Zn | 10 | - | 20 | 20 | - | 50 | ||
| Iron, ppm Fe | 25 | - | 50 | 50 | - | 50 | ||
| Manganese, ppm Mn | 15 | - | 30 | 30 | - | 200 | ||
| Copper ppm Cu | 3 | - | 5 | 5 | - | 30 | ||
| Boron, ppm B | 2 | - | 5 | 5 | - | 20 | ||
| Nitrogen-to-sulfur ratio (N:S) | 8 | - | 12 | 12 | - | 20 | ||
| Sodium, % Na | - | - | ||||||
| Chloride, % Cl | - | - | ||||||
¶ Figure A.
