Nutrient calculator
The right feed for every crop, at every stage
Custom hydroponic recipes for all 88 crops, built with everyday open-field fertilisers and stored as JSON, ready for any automation system.
Watch
See the nutrient calculator in action
A short walkthrough of how the calculator turns a crop and a tank size into exact fertiliser quantities.
- Pick a crop type and growth stage
- Enter your stock tank capacity
- Get the grams of each fertiliser for Tank A and Tank B
Nutrient calculator: how it works
Why it works
Hydroponic results with open-field fertilisers
No expensive fertilisers
Every recipe uses fertilisers you can already buy for open-field farming, not costly branded hydroponic mixes.
Available across the world
The base stack is made of widely available fertilisers, so you can source it in India or anywhere else.
JSON, ready for automation
Recipes are stored as JSON, so you can feed them into any automation system or change them at code level.
Right feed for every stage
Separate recipes for each growth stage, so the plant gets what it needs as it grows.
Fertiliser stack
One base stack, sold everywhere
Base fertigation built on ten fertilisers that are widely and easily available across the world. Together they supply all twelve essential plant nutrients.
Primary nutrientsSecondary nutrientsMicronutrients
| Fertiliser | Formula | Supplies | Elements | Tank |
|---|---|---|---|---|
| Calcium Nitrate | Ca(NO₃)₂ | Calcium and nitrate nitrogen | CaN | A |
| Potassium Nitrate (13:00:45) | KNO₃ | 13% N, 45% K₂O | KN | A + B |
| Iron Fe Chelated 12% | Fe-EDTA | 12% Fe | Fe | A |
| Mono Potassium Phosphate (00:52:34) | KH₂PO₄ | 52% P₂O₅, 34% K₂O | PK | B |
| Magnesium Sulphate | MgSO₄·7H₂O | Magnesium and sulphur | MgS | B |
| Manganese 10% EDTA | Mn-EDTA | 10% Mn | Mn | B |
| Zinc 12% EDTA | Zn-EDTA | 12% Zn | Zn | B |
| Copper 12% EDTA | Cu-EDTA | 12% Cu | Cu | B |
| Ammonium Molybdate 52% | (NH₄)₆Mo₇O₂₄·4H₂O | 52% Mo | MoN | B |
| Boron 20% | Na₂B₈O₁₃·4H₂O | 20% B | B | B |
Why two tanks? Calcium stays in Tank A, away from the phosphates and sulphates in Tank B. Mixed when concentrated they react and settle out, so they only meet after dilution in the irrigation water.
JSON recipes
Every recipe is code you can use
Recipes are stored as JSON, so you can feed them into any automation system, including hydroBUILD, or change them at code level.
- Machine-readable for dosing controllers
- Tank A and Tank B quantities per stock tank
- Edit, version and share recipes like code
{
"crop_type": "leafy",
"stock_tank_litres": 50,
"tank_a": [
{ "fertiliser": "Calcium Nitrate", "formula": "Ca(NO3)2", "kg": 10.0 },
{ "fertiliser": "Potassium Nitrate 13:00:45", "formula": "KNO3", "kg": 7.5 },
{ "fertiliser": "Iron Fe Chelated 12%", "formula": "Fe-EDTA", "kg": 0.35 }
],
"tank_b": [
{ "fertiliser": "Potassium Nitrate 13:00:45", "formula": "KNO3", "kg": 7.5 },
{ "fertiliser": "Mono Potassium Phosphate 00:52:34", "formula": "KH2PO4", "kg": 4.0 },
{ "fertiliser": "Magnesium Sulphate", "formula": "MgSO4.7H2O", "kg": 4.5 },
{ "fertiliser": "Manganese 10% EDTA", "formula": "Mn-EDTA", "kg": 0.02 }
]
}Inside the software
From target ppm to grams per tank
Screenshots are from the live system.
01
Nutrient calculations per kilolitre
Set a target ppm for each of the twelve nutrients. The calculator works out how much each fertiliser contributes, shows any shortfall, and gives grams per kilolitre and the tank each one goes into.
02
A ready recipe for your tank
Choose the crop type and your tank capacity to get the exact quantity of every fertiliser for Tank A and Tank B.
What is the nutrient calculator?
It is Kryzen’s software for hydroponic nutrient recipes. It gives custom recipes for 88 crops, split by growth stage, and calculates exactly how much of each fertiliser goes into Tank A and Tank B.
Which crops does it cover?
All 88 crops we track for commercial production: 48 vegetative crops such as lettuces, leafy greens and herbs, and 40 fruiting crops such as tomatoes, capsicum, chillies, brinjal, cucumbers, gourds and beans.
Do I need special hydroponic fertilisers?
No. The recipes are built to work with fertilisers that are already sold for open-field agriculture, such as calcium nitrate, potassium nitrate and mono potassium phosphate.
Why are there two tanks, A and B?
Calcium is kept in Tank A, apart from the phosphates and sulphates in Tank B. Mixed in concentrated form they react and settle out, so they are only combined after dilution in the irrigation water.
Can I use the recipes with my own automation?
Yes. Every recipe is JSON-based, so it can be fed into any automation system, including hydroBUILD, or changed at code level.
Does it scale to my tank size?
Yes. Choose your crop type and tank capacity, and the quantities for each fertiliser are calculated for that tank.
Talk to our team
Feed every crop exactly what it needs
Tell us what you grow. We’ll set up your recipes and connect them to your dosing system.