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

Address

111 Ag Analytical Services Lab
University Park, PA 16802
Directions

Hours: Monday-Friday, 8:00 AM - 4:30 PM

Ag Analytical Services Lab

Address

111 Ag Analytical Services Lab
University Park, PA 16802
Directions

Hours: Monday-Friday, 8:00 AM - 4:30 PM