Description
Multiply each fraction by its reference density and return firstFraction+secondFraction as replacementTotal.
Agroecological material and density summaries depend on dry/wet mass, seed-component purity, nutrient transformations and sole-crop reference densities. An arithmetic contribution evaluates supplied assumptions without predicting emergence, nutrient availability or a whole-system ecological outcome.
Multiply each fraction by its reference density and return firstFraction+secondFraction as replacementTotal.
When to use this tool
Use Intercrop Replacement Density Budget when checking the stated residue, seed, nutrient or reference-density basis.
How to use the tool and how it works
- Enter firstFraction, secondFraction, firstSoleDensity, secondSoleDensity. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read firstDensity, secondDensity, replacementTotal. Use the output convention below.
Require nonnegative supplied fractions and sole-crop densities. Multiply each fraction by its reference density and return firstFraction+secondFraction as replacementTotal.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| firstFraction | Nonnegative reference-density multiplier; this contract does not cap it at one. Unit: 1. | Required. Finite number; minimum 0. |
| secondFraction | Second Fraction Unit: 1. | Required. Finite number; minimum 0. |
| firstSoleDensity | First Sole Density | Required. Finite number; minimum 0. |
| secondSoleDensity | Second Sole Density | Required. Finite number; minimum 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| firstDensity | First Density | Required. Finite number. |
| secondDensity | Second Density | Required. Finite number. |
| replacementTotal | Sum of supplied density multipliers; need not be one. | Required. Finite number. |
{
"input": {
"firstFraction": 0.5,
"secondFraction": 0.5,
"firstSoleDensity": 100,
"secondSoleDensity": 200
},
"output": {
"firstDensity": 50,
"secondDensity": 100,
"replacementTotal": 1
}
}Limitations and assumptions
- Fractions are not capped at one and need not sum to one; the tool does not impose a replacement-design standard.
- 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
Use representative field/laboratory measurements and a complete suitable agroecological model for management decisions and uncertainty.
References
Similar or alternative tools
- Mixed Crop Plant Density Relative Term
Return observedPlants/area and that density divided by the sole-crop reference.
- Intercrop Row Proportion
Return effective rows and retained first rows/effective rows, or zero with defined=false when none remain.