Interpretive Nutrient Levels for Plant Analysis
Tuliptree, Any
| Low | Normal | High | Excessive | |
|---|---|---|---|---|
| Nitrogen (% DW) | 1.50 |
1.90 |
4.28 |
5.00 |
| Phosphorus (% DW) | 0.08 |
0.10 |
0.34 |
0.40 |
| Potassium (% DW) | 0.50 |
0.62 |
2.00 |
2.50 |
| Calcium (% DW) | 1.00 |
1.39 |
3.52 |
4.00 |
| Magnesium (% DW) | 0.15 |
0.21 |
0.61 |
0.75 |
| Sulfur (% DW) | 0.10 |
0.17 |
0.40 |
0.50 |
| Manganese (ppm DW) | 30 |
40 |
471 |
750 |
| Iron (ppm DW) | 40 |
50 |
280 |
500 |
| Copper (ppm DW) | 4 |
5 |
28 |
40 |
| Boron (ppm DW) | 20 |
27 |
75 |
100 |
| Zinc (ppm DW) | 10 |
13 |
32 |
50 |
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
