Greenhouse, Indoor Farming & Agri-Processing worked example

Nutrient Mix Consumption at 65% dosing-system delivery efficiency: a worked example

This worked example runs the nutrient mix consumption numbers for a tougher week than the baseline: 65% dosing-system delivery efficiency instead of the typical 90%. Estimate liters of A/B nutrient stock or fertigation concentrate needed to feed a hydroponic, NFT, ebb-and-flow, or drip-irrigated canopy from growing area, daily nutrient solution use per square foot, and dosing-system efficiency.

The inputs for this scenario

  • Active canopy area to feed: 5,000 sq ft (held at the documented default)
  • Daily nutrient solution use per square foot: 0.1 L / sq ft / day (held at the documented default)
  • Dosing-system delivery efficiency: 65 % (the input this scenario stresses; the baseline uses 90)

Working through the calculation

  • The calculation starts from the formula this tool documents: Theoretical daily solution required = active canopy area × daily nutrient solution use per square foot.
  • Required nutrient solution to mix works out to 769 L at these inputs, and this is the headline figure for the scenario.
  • Theoretical daily solution required works out to 500 L at these inputs.
  • Drain-to-waste and bleed-off allowance works out to 269 L at these inputs.
  • Dosing-system delivery efficiency works out to 65 % at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where dosing-system delivery efficiency sits at 90% and the headline result is 556 L, this scenario comes in 38.46% above the baseline at 769 L.
  • Use it when sizing mix tanks, scheduling fertigation batches, or ordering nutrient salts and concentrate for an upcoming crop cycle. A result at this level usually justifies acting on the stressed input before touching anything else, because every other figure in the table is downstream of it.

Results at a glance

  • Required nutrient solution to mix: 769 L (headline result)
  • Theoretical daily solution required: 500 L
  • Drain-to-waste and bleed-off allowance: 269 L
  • Dosing-system delivery efficiency: 65 %

Run it with your numbers

  • To rerun this with your own numbers, open the live Nutrient Mix Consumption calculator, set dosing-system delivery efficiency to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.