Interpretive Nutrient Levels for Plant Analysis

Potatoes, Irish


Low Normal High Excessive
Nitrogen (% DW) 3.50
4.50
6.00
7.50
Phosphorus (% DW) 0.22
0.29
0.50
0.61
Potassium (% DW) 1.50
2.00
4.10
5.00
Calcium (% DW) 0.65
0.76
1.00
4.00
Magnesium (% DW) 0.20
0.40
1.00
1.25
Sulfur (% DW) 0.20
0.30
0.50
1.00
Manganese (ppm DW) 20
30
250
800
Iron (ppm DW) 40
50
100
600
Copper (ppm DW) 5
7
20
200
Boron (ppm DW) 18
25
50
180
Zinc (ppm DW) 35
45
250
500

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