Interpretive Nutrient Levels for Plant Analysis
Pear, Any
| Low | Normal | High | Excessive | |
|---|---|---|---|---|
| Nitrogen (% DW) | 1.35 |
1.60 |
2.41 |
2.42 |
| Phosphorus (% DW) | 0.15 |
0.18 |
0.26 |
0.27 |
| Potassium (% DW) | 0.16 |
0.20 |
2.01 |
2.02 |
| Calcium (% DW) | 0.10 |
1.30 |
9.01 |
9.99 |
| Magnesium (% DW) | 0.05 |
0.30 |
0.61 |
0.62 |
| Sulfur (% DW) | 0.09 |
0.17 |
0.26 |
0.80 |
| Manganese (ppm DW) | 5 |
20 |
199 |
200 |
| Iron (ppm DW) | 40 |
50 |
400 |
500 |
| Copper (ppm DW) | 2 |
6 |
25 |
200 |
| Boron (ppm DW) | 5 |
35 |
80 |
81 |
| Zinc (ppm DW) | 5 |
20 |
200 |
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
