Preset Recipe
Classic full-strength Hoagland solution — general purpose reference.
Chemicals (mg/L)
Calcium Nitrate TetrahydrateCa(NO₃)₂·4H₂O
mg/L
Potassium NitrateKNO₃
mg/L
Monopotassium PhosphateKH₂PO₄
mg/L
Magnesium Sulfate Heptahydrate (Epsom Salt)MgSO₄·7H₂O
mg/L
Sodium Iron EDTA TrihydrateC₁₀H₁₂FeN₂NaO₈·3H₂O
mg/L
Boric AcidH₃BO₃
mg/L
Manganese Sulfate MonohydrateMnSO₄·H₂O
mg/L
Zinc Sulfate HeptahydrateZnSO₄·7H₂O
mg/L
Copper Sulfate PentahydrateCuSO₄·5H₂O
mg/L
Sodium Molybdate DihydrateNa₂MoO₄·2H₂O
mg/L
Water Profile
Ion Concentrations
Est. EC2.42 mS/cm
| Ion | ppm |
|---|---|
| Macronutrients | |
| N (NO₃⁻) | |
| N (NH₄⁺) | |
| P | |
| K | |
| Ca | |
| Mg | |
| S (SO₄²⁻) | |
| Micronutrients | |
| Fe | |
| Mn | |
| B | |
| Zn▼ | |
| Cu | |
| Mo▼ | |
| Na | |
| Cl | |
| Si | |
Cation-Anion Balance
Cations: 18.18 me/LAnions: 18.03 me/L
Ratio
1.01 : 1
Ideal: 1.00 : 1
Status
Balanced
Perfect
Nutrient Ratios
N : P : K
5.9 : 1.0 : 7.6
Macronutrient balance
Ca : Mg
3.3 : 1
Ideal range: 2:1 to 5:1
NO₃ : NH₄
100% NO₃
No ammonium nitrogen
K : Ca
1.46 : 1
Fruiting crops: ~1.5:1
Mixing Amounts
liters
Calcium Nitrate Tetrahydrate94.50 g
Potassium Nitrate50.60 g
Monopotassium Phosphate13.60 g
Magnesium Sulfate Heptahydrate (Epsom Salt)49.30 g
Sodium Iron EDTA Trihydrate2.11 g
Boric Acid286.0 mg
Manganese Sulfate Monohydrate154.0 mg
Zinc Sulfate Heptahydrate22.0 mg
Copper Sulfate Pentahydrate8.0 mg
Sodium Molybdate Dihydrate2.0 mg
Per-Chemical Breakdown (ppm)
| Chemical | Ca | N-NO₃ | K | P | Mg | S | Fe | Na | B | Mn | Zn | Cu | Mo |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Calcium Nitrate Tetrahydrate | 160.4 | 112.1 | |||||||||||
| Potassium Nitrate | 70.1 | 195.7 | |||||||||||
| Monopotassium Phosphate | 39.1 | 31.0 | |||||||||||
| Magnesium Sulfate Heptahydrate (Epsom Salt) | 48.6 | 64.1 | |||||||||||
| Sodium Iron EDTA Trihydrate | 2.8 | 1.2 | |||||||||||
| Boric Acid | 0.500 | ||||||||||||
| Manganese Sulfate Monohydrate | 0.292 | 0.501 | |||||||||||
| Zinc Sulfate Heptahydrate | 0.025 | 0.050 | |||||||||||
| Copper Sulfate Pentahydrate | 0.010 | 0.020 | |||||||||||
| Sodium Molybdate Dihydrate | 0.004 | 0.008 | |||||||||||
| Total | 160.4 | 182.2 | 234.8 | 31.0 | 48.6 | 64.5 | 2.8 | 1.2 | 0.500 | 0.501 | 0.050 | 0.020 | 0.008 |