What is the active ingredient

All fertilizer doses are calculated per active ingredient.

Here are useful formulas for converting various elements into active ingredients:

• ➡️ Phosphorus (P) = phosphorus pentoxide (P₂O₅) × 0,436
• ➡️ Potassium (K) = potassium oxide (K₂O) × 0,830
• ➡️ Calcium (Ca) = calcium oxide (CaO) × 0,715
• ➡️ Magnesium (Mg) = magnesium oxide (MgO) × 0,603
• ➡️ Sodium (Na) = sodium oxide (Na₂O) × 0,742
• ➡️ Sulfur (S) = sulfur trioxide (SO₃) × 0,400

Remember that only the following elements need to be calculated:
P- P₂O₅
K-K₂O
Ca-CaO
Mg-MgO
S-SO₃