Interpretive Nutrient Levels for Plant Analysis
Corn, Field
| Low | Normal | High | Excessive | |
|---|---|---|---|---|
| Nitrogen (% DW) | 2.45 |
2.76 |
3.51 |
3.76 |
| Phosphorus (% DW) | 0.16 |
0.25 |
0.51 |
0.61 |
| Potassium (% DW) | 1.25 |
1.71 |
2.51 |
3.51 |
| Calcium (% DW) | 0.10 |
0.21 |
1.01 |
1.51 |
| Magnesium (% DW) | 0.10 |
0.21 |
0.61 |
1.01 |
| Sulfur (% DW) | 0.10 |
0.21 |
0.51 |
0.81 |
| Manganese (ppm DW) | 15 |
20 |
151 |
201 |
| Iron (ppm DW) | 10 |
21 |
251 |
351 |
| Copper (ppm DW) | 3 |
6 |
21 |
51 |
| Boron (ppm DW) | 2 |
4 |
26 |
46 |
| Zinc (ppm DW) | 11 |
20 |
71 |
101 |
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
