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Grapes, Any

Interpretive Nutrient Levels for Plant Analysis

Grapes, Any


Low Normal High Excessive
Nitrogen (% DW) 0.20
0.80
1.21
6.00
Phosphorus (% DW) 0.01
0.11
0.30
0.51
Potassium (% DW) 0.30
1.10
1.90
3.50
Calcium (% DW) 0.05
0.10
5.00
9.00
Magnesium (% DW) 0.02
0.25
0.51
3.00
Sulfur (% DW) 0.10
0.15
0.80
2.00
Manganese (ppm DW) 30
50
1000
7500
Iron (ppm DW) 5
10
300
800
Copper (ppm DW) 1
5
16
200
Boron (ppm DW) 20
25
51
101
Zinc (ppm DW) 5
25
51
500