nutrient

1. NUTRIENT A (optimal growth) B (inhibitory growth)
Nitrogen (N) 100 100
Potassium (K) 65 30
Phosphorus (P) 14 8
Sulfur (S) 9 5
Calcium (Ca) 7 4
Magnesium (Mg) 6 4
Iron (Fe) 0.7 0.2
Manganese (Mn) 0.4 0.06
Boron (B) 0.2 0.04
Zinc (Zn) 0.06 0.05
Copper (Cu) 0.03 0.02
Chloride (Cl) 0.03 *
Molybdenium (Mo) 0.003 *
Nickle (Ni)** * *
Table 1. Column A indicates quantity ratios that give plants optimal growth. All values ​​are relative weight in relation to nitrogen. Column B indicates when the nutrient
content is so low that it inhibits the plants' growth. The values ​​can be used when assessing leaf samples in the event of a suspected nutrient deficiency
Calculation of plant nutrients in relation to N
When we take analyses of the plant leaves – we use the following table to analyze.
A: Values that give the plants optimum growth.
B: The values are so low that it will inhibit the growth
Nitrogen value is 100 – and
you calculate all the other
analyses as a % of nitrogen.

2. Low content
High content
You can see an example how it is used on a typical sample. You use the analyze data as following:
Nitrogen value is 100 – and you calculate all the other analyses as a % of nitrogen.
Remember to use the same value for all figures (mg/kg TS or similar)