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Walnut, Black

Interpretive Nutrient Levels for Plant Analysis

Walnut, Black


Low Normal High Excessive
Nitrogen (% DW) 1.00
1.80
3.35
5.00
Phosphorus (% DW) 0.09
0.15
0.50
1.00
Potassium (% DW) 0.50
0.75
2.00
5.00
Calcium (% DW) 0.30
0.90
3.00
5.00
Magnesium (% DW) 0.10
0.30
1.00
3.00
Sulfur (% DW) 0.05
0.10
1.00
2.00
Manganese (ppm DW) 10
30
300
500
Iron (ppm DW) 50
100
400
500
Copper (ppm DW) 3
5
20
50
Boron (ppm DW) 25
35
100
200
Zinc (ppm DW) 15
25
75
150