AgriFertFertigation and plant nutrition
Fertilizer calculator for fertigation recipes
AgriFert calculates A/B tank recipes from your crop targets, your water analysis and the fertilizers you use, and shows the resulting EC, nutrient levels and ratios.
A nutrient recipe you can explain
Crop profiles
Target values for 25 greenhouse crops, including tomato, cucumber, sweet pepper, rose, gerbera and chrysanthemum, for macro and micro elements.
Water and drain analysis
Enter your source water analysis, or switch to recirculation and blend drain water back in at the percentage you run.
A/B tank recipes
Get the quantity of each fertilizer for the A, B, acid and micro tanks, with EC, mmol/L, ppm and the N:K, K:Ca and Mg:Ca ratios.
Auto-recipe
Let the calculator build a recipe step by step from the crop target and your water, then fine-tune it yourself.
Cost per cubic meter
See what each fertilizer adds to the cost of your irrigation water, using your own prices.
Leaf analysis and troubleshooting
Compare leaf analysis results with published norms and work through deficiency symptoms with the recipe next to you.
How the fertilizer calculator works
- 1
Pick a crop profile
Start from the target values for your crop.
- 2
Enter your water analysis
Add the source water analysis and, for recirculating systems, the drain analysis.
- 3
Build the recipe
Use the auto-recipe or choose fertilizers yourself, and watch EC, nutrients and ratios update.
- 4
Print and mix
Print the recipe sheet with quantities per tank and the cost breakdown.
Frequently asked questions
Which units does the fertilizer calculator use?
mmol/L for macro elements and µmol/L for micro elements, the standard in Dutch greenhouse horticulture. Values in ppm are shown alongside.
Can I use it for recirculating systems?
Yes. In recirculation mode you enter the drain analysis and the drain percentage, and the recipe is corrected for the nutrients already in the drain water.
Can I add my own fertilizers?
Yes. The catalog contains 27 common fertilizers and you can add your own products.
Which crops are covered?
The built-in profiles cover greenhouse vegetables, cut flowers and pot plants. Talk to us about targets for other crops.
Works together with
Climate and weather
Follow greenhouse sensors, rainfall, light and degree hours next to your crop data.
Yield forecasting
Track batches from planting to harvest and forecast your harvest per week against your orders.
Scouting and spraying
Scouts record pests and diseases on their phone. You see pressure maps and weekly trends, get spray recommendations and keep every application on record.
See it on your own farm
Tell us how your farm works and we will show you what AgriSfeer would look like for you.
Request a demo