Garden & outdoors
Fertiliser nutrient mass budget
Sum declared N–P₂O₅–K₂O masses across listed products.
A clear answer. Here’s how.
Multiplies each product mass by each supplied grade percentage and sums product/N/P₂O₅/K₂O totals. Values are mass percentages from 0–100; oxide equivalents are retained as labelled, not converted to elemental phosphorus/potassium. Up to 1,000 rows. This is an inventory calculation and does not recommend application rates or replace soil testing/product instructions.
See a worked example
Worked example
A fixed demonstration, separate from the values you enter above.
- Project CSV
Product,Kg,N,P2O5,K2O Product A,2,10,5,5 Product B,1,0,0,10
Example result
| Product | Product mass (kg) | N (kg) | P₂O₅ equivalent (kg) | K₂O equivalent (kg) |
|---|---|---|---|---|
| Product A | 2 | 0.2 | 0.1 | 0.1 |
| Product B | 1 | 0 | 0 | 0.1 |
| TOTAL | 3 | 0.2 | 0.1 | 0.2 |
Grade is percent by mass N–P₂O₅–K₂O; oxide equivalents are not elemental phosphorus/potassium. This sums supplied quantities and does not recommend an application rate.