Interpretive Nutrient Levels for Plant Analysis
Collards, Any
| Low | Normal | High | Excessive | |
|---|---|---|---|---|
| Nitrogen (% DW) | 3.50 |
4.00 |
5.01 |
9.99 |
| Phosphorus (% DW) | 0.25 |
0.30 |
0.81 |
3.00 |
| Potassium (% DW) | 2.50 |
3.00 |
4.51 |
9.00 |
| Calcium (% DW) | 2.50 |
3.00 |
4.01 |
9.00 |
| Magnesium (% DW) | 0.20 |
0.25 |
0.76 |
3.00 |
| Sulfur (% DW) | 0.10 |
0.20 |
1.00 |
2.00 |
| Manganese (ppm DW) | 25 |
30 |
251 |
800 |
| Iron (ppm DW) | 40 |
50 |
151 |
500 |
| Copper (ppm DW) | 2 |
4 |
21 |
100 |
| Boron (ppm DW) | 25 |
30 |
100 |
300 |
| Zinc (ppm DW) | 18 |
20 |
101 |
300 |
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
