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Spruce, Blue

Interpretive Nutrient Levels for Plant Analysis

Spruce, Any


Low Normal High Excessive
Nitrogen (% DW) 1.00
1.50
2.10
4.00
Phosphorus (% DW) 0.08
0.12
0.21
0.40
Potassium (% DW) 0.30
0.61
1.26
2.00
Calcium (% DW) 0.10
0.24
0.63
1.20
Magnesium (% DW) 0.05
0.08
0.35
0.50
Sulfur (% DW) 0.08
0.10
0.30
0.40
Manganese (ppm DW) 15
20
300
1500
Iron (ppm DW) 25
65
105
300
Copper (ppm DW) 3
5
15
50
Boron (ppm DW) 8
10
30
50
Zinc (ppm DW) 10
20
50
100