Calculate a heating-adjusted nutrient concentrate rate for a greenhouse fertigation tank. Enter the baseline dose, irrigation volume, and a crop-response adjustment to estimate concentrate use per cycle and over a planned number of cycles.
Adjusted dose = Baseline dose × (1 + Adjustment ÷ 100)
Concentrate per cycle (L) = Adjusted dose (mL/L) × Water (L) ÷ 1,000
The result converts an operator-selected percentage adjustment into a new concentrate mixing rate and purchasing quantity.
Do not infer nutrient demand from temperature alone. Confirm the final solution with crop tissue, drain, EC, pH, and manufacturer guidance.
A 2.0 mL/L baseline increased by 8% becomes 2.16 mL/L. For 1,500 L, that is 3.24 L per cycle and 45.36 L across 14 cycles.
No. Heating can change growth and water use, but nutrient demand depends on crop stage and measured conditions.
No. It is a concentrate volume rate, not an EC prediction.
Yes. Enter a negative adjustment greater than -100%.
The dose is in milliliters per liter, so total milliliters are converted to liters.
Keep the unrounded rate for planning and round only to the precision your dosing equipment can deliver.
| Item | Meaning |
|---|---|
| Baseline dose | Current concentrate addition in mL per liter |
| Adjustment | Scenario change associated with the operating plan |
| Per-cycle volume | Adjusted concentrate needed for one irrigation cycle |
| Total | Concentrate needed across all planned cycles |