Interpretive Nutrient Levels for Plant Analysis
Oak, Red
| Low | Normal | High | Excessive | |
|---|---|---|---|---|
| Nitrogen (% DW) | 1.50 |
1.87 |
2.70 |
3.50 |
| Phosphorus (% DW) | 0.07 |
0.11 |
0.25 |
0.40 |
| Potassium (% DW) | 0.50 |
0.83 |
1.72 |
2.50 |
| Calcium (% DW) | 0.40 |
0.55 |
0.95 |
1.50 |
| Magnesium (% DW) | 0.12 |
0.17 |
0.40 |
0.80 |
| Sulfur (% DW) | 0.05 |
0.11 |
0.30 |
0.50 |
| Manganese (ppm DW) | 100 |
236 |
1736 |
2500 |
| Iron (ppm DW) | 40 |
60 |
125 |
500 |
| Copper (ppm DW) | 3 |
5 |
14 |
25 |
| Boron (ppm DW) | 12 |
23 |
70 |
150 |
| Zinc (ppm DW) | 10 |
16 |
37 |
75 |
Ag Analytical Services Lab
Hours: Monday-Friday, 8:00 AM - 4:00 PM
- Email aaslab@psu.edu
- Office 814-863-0841
- Fax 814-863-4540
Ag Analytical Services Lab
Hours: Monday-Friday, 8:00 AM - 4:00 PM
- Email aaslab@psu.edu
- Office 814-863-0841
- Fax 814-863-4540
