Single super phosphate Calculator
Scale single super phosphate (ssp) (16% P₂O₅) to your field, see the P₂O₅ delivered, bag count and cost from the recommended 375 kg/ha rate.
SSP supplies 16% P2O5 plus a valuable 11–12% sulphur and 19% calcium — which DAP does not. For oilseeds and pulses, SSP often out-yields DAP at equal P because of the bonus sulphur.
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 Single super phosphate Calculator to turn a per-hectare single super phosphate (ssp) recommendation into the exact quantity, bag count and cost for their own field in seconds.
About Single super phosphate Calculator
Single super phosphate carries 16% P₂O₅ plus a bonus 11–12% sulphur and 19% calcium that DAP lacks — which is why SSP frequently beats DAP on oilseeds and pulses at the same phosphorus rate. This tool scales SSP to deliver your target P₂O₅, and shows the sulphur and calcium that come free with it.
How to use Single super phosphate Calculator
- 1Enter your field area and unit.
- 2Pick the soil rating or situation that matches your soil test.
- 3Read the single super phosphate (ssp) quantity, P₂O₅ delivered, bags and cost, then follow the application note.
Why use Single super phosphate Calculator?
- ✓Scales the recommended single super phosphate (ssp) rate to hectares, acres or bigha
- ✓Shows the actual P₂O₅ 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 single super phosphate (ssp) per acre?+
High P need (oilseeds): 375 kg/ha (151.8 kg/acre); Medium P need: 250 kg/ha (101.2 kg/acre); Low P need: 125 kg/ha (50.6 kg/acre). SSP supplies 16% P2O5 plus a valuable 11–12% sulphur and 19% calcium — which DAP does not.
How much P₂O₅ does single super phosphate (ssp) contain?+
Single super phosphate (SSP) carries about 16% P₂O₅, so each 100 kg supplies 16.0 kg of P₂O₅. The calculator multiplies your applied quantity by this to show the true nutrient delivered.
When and how should I apply it?+
SSP supplies 16% P2O5 plus a valuable 11–12% sulphur and 19% calcium — which DAP does not. For oilseeds and pulses, SSP often out-yields DAP at equal P because of the bonus sulphur.
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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