Zinc EDTA chelate Calculator
Scale zinc edta chelate (12% Zn) to your field, see the Zn delivered, bag count and cost from the recommended 2.5 kg/ha rate.
Chelated zinc (Zn-EDTA, 12% Zn) stays plant-available on high-pH calcareous soils where cheap zinc sulphate locks up. It costs far more per kg, so reserve it for problem soils or fertigation.
Indicative planning figures based on published research averages. Local soil tests, varieties and weather change actual requirements — confirm with your agronomist or extension officer.
Farmers and soil-test labs use the free Zinc EDTA chelate Calculator to turn a per-hectare zinc edta chelate recommendation into the exact quantity, bag count and cost for their own field in seconds.
About Zinc EDTA chelate Calculator
On high-pH calcareous soils, ordinary zinc sulphate locks up within days. Chelated zinc (Zn-EDTA, ~12% Zn) protects the zinc and keeps it plant-available, justifying its much higher price on problem soils and in fertigation. This tool scales the small chelate dose and reports the zinc actually delivered.
How to use Zinc EDTA chelate Calculator
- 1Enter your field area and unit.
- 2Pick the soil rating or situation that matches your soil test.
- 3Read the zinc edta chelate quantity, Zn delivered, bags and cost, then follow the application note.
Why use Zinc EDTA chelate Calculator?
- ✓Scales the recommended zinc edta chelate rate to hectares, acres or bigha
- ✓Shows the actual Zn nutrient delivered, not just product weight
- ✓Estimates cost and bag count so you can budget the purchase
- ✓Free, instant and fully in-browser — works offline in the field
Frequently asked questions
How much zinc edta chelate per acre?+
Soil application: 2.5 kg/ha (1.0 kg/acre); High-pH problem soil: 5 kg/ha (2.0 kg/acre). Chelated zinc (Zn-EDTA, 12% Zn) stays plant-available on high-pH calcareous soils where cheap zinc sulphate locks up.
How much Zn does zinc edta chelate contain?+
Zinc EDTA chelate carries about 12% Zn, so each 100 kg supplies 12.0 kg of Zn. The calculator multiplies your applied quantity by this to show the true nutrient delivered.
When and how should I apply it?+
Chelated zinc (Zn-EDTA, 12% Zn) stays plant-available on high-pH calcareous soils where cheap zinc sulphate locks up. It costs far more per kg, so reserve it for problem soils or fertigation.
Is the tool free and private?+
Yes — free, no sign-up, and all calculation runs in your browser, so it works offline in the field and your data never leaves the device.
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