Copper sulphate Calculator
Scale copper sulphate (25% Cu) to your field, see the Cu delivered, bag count and cost from the recommended 10 kg/ha rate.
Copper deficiency mostly appears on peaty/organic and heavily-leached sandy soils, causing 'reclamation disease' in cereals. Copper is persistent — a single application can last several years; avoid over-use, it is toxic in excess.
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 Copper sulphate Calculator to turn a per-hectare copper sulphate recommendation into the exact quantity, bag count and cost for their own field in seconds.
About Copper sulphate Calculator
Copper deficiency causes wilting, white twisted tips and poor grain set ('reclamation disease') on organic and leached sandy soils. Copper sulphate pentahydrate carries 25% Cu and persists for years, so doses are small. This tool scales the 5–10 kg/ha rate and tracks the copper delivered and cost.
How to use Copper sulphate Calculator
- 1Enter your field area and unit.
- 2Pick the soil rating or situation that matches your soil test.
- 3Read the copper sulphate quantity, Cu delivered, bags and cost, then follow the application note.
Why use Copper sulphate Calculator?
- ✓Scales the recommended copper sulphate rate to hectares, acres or bigha
- ✓Shows the actual Cu 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 copper sulphate per acre?+
Soil test Low Cu: 10 kg/ha (4.0 kg/acre); Marginal: 5 kg/ha (2.0 kg/acre). Copper deficiency mostly appears on peaty/organic and heavily-leached sandy soils, causing 'reclamation disease' in cereals.
How much Cu does copper sulphate contain?+
Copper sulphate carries about 25% Cu, so each 100 kg supplies 25.0 kg of Cu. The calculator multiplies your applied quantity by this to show the true nutrient delivered.
When and how should I apply it?+
Copper deficiency mostly appears on peaty/organic and heavily-leached sandy soils, causing 'reclamation disease' in cereals. Copper is persistent — a single application can last several years; avoid over-use, it is toxic in excess.
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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