Interpretive Nutrient Levels for Plant Analysis
Corn, 12" Tall
| Low | Normal | High | Excessive | |
|---|---|---|---|---|
| Nitrogen (% DW) | 2.45 |
3.50 |
5.00 |
7.00 |
| Phosphorus (% DW) | 0.16 |
0.30 |
0.50 |
3.00 |
| Potassium (% DW) | 1.25 |
2.50 |
4.00 |
7.00 |
| Calcium (% DW) | 0.10 |
0.30 |
0.70 |
3.00 |
| Magnesium (% DW) | 0.10 |
0.15 |
0.45 |
2.00 |
| Sulfur (% DW) | 0.13 |
0.21 |
0.76 |
2.00 |
| Manganese (ppm DW) | 15 |
20 |
300 |
1001 |
| Iron (ppm DW) | 10 |
50 |
250 |
800 |
| Copper (ppm DW) | 3 |
5 |
20 |
75 |
| Boron (ppm DW) | 3 |
5 |
25 |
61 |
| Zinc (ppm DW) | 15 |
20 |
60 |
400 |
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
