Description
Multiply stockMass by labelFraction in [0, 1] and nonnegative elementConversion for elementMass, then multiply by deliveredFraction in [0, 1].
Solution calculations use a common volume, mass, or concentration basis. Dilution factors, weighted mixtures, and unit conversions describe different operations; their directions and assumptions must be explicit.
Multiply stockMass by labelFraction in [0, 1] and nonnegative elementConversion for elementMass, then multiply by deliveredFraction in [0, 1].
When to use this tool
Use Nutrient Stock Label Element One Contribution when you need one supplied solution or concentration-balance component.
How to use the tool and how it works
- Enter stockMass, labelFraction, elementConversion, deliveredFraction. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read elementMass, deliveredElement. Use the output convention below.
Multiply stockMass by labelFraction in [0, 1] and nonnegative elementConversion for elementMass, then multiply by deliveredFraction in [0, 1].1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| stockMass | Stock Mass | Required. Finite number; minimum 0. |
| labelFraction | Label Fraction | Required. Finite number; minimum 0; maximum 1. |
| elementConversion | Element Conversion | Required. Finite number; minimum 0. |
| deliveredFraction | Delivered Fraction | Required. Finite number; minimum 0; maximum 1. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| elementMass | Element Mass | Required. Finite number. |
| deliveredElement | Delivered Element | Required. Finite number. |
{
"input": {
"stockMass": 100,
"labelFraction": 0.1,
"elementConversion": 0.5,
"deliveredFraction": 0.8
},
"output": {
"elementMass": 5,
"deliveredElement": 4
}
}Limitations and assumptions
- LabelFraction is a mass fraction rather than a percentage; conversion and delivery assumptions are supplied, with no fertilizer recommendation, chemical identification, or nutrient-availability model.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Check the quantity bases, mixing assumptions, measurement method, and complete chemical or nutrient model separately.
References
Similar or alternative tools
- Solution Oxygen Mass Per Reservoir
Multiply nonnegative concentration and volume by positive concentrationToMassPerVolume for oxygenMass.
- Reservoir Topup Concentration Balance Term
Return combined volume and the volume-weighted mean concentration.