Agriculture Soil Texture Silt Percentage Calculator
Infer silt by subtracting independently measured included CLAY from observed fine-fraction sedimentation mass, then pool with separately sieved sand and uncaptured mass closure. Caller establishes matched fraction-separation method; not a texture identity or agronomic recommendation.
Description
Silt can be estimated by subtracting included clay from a measured fine fraction.
Silt can be estimated by subtracting included clay from a measured fine fraction.1
Recovered-component percentage and total mass closure describe different aspects of that analysis. Use Agriculture Soil Texture Silt Percentage Calculator to evaluate the supplied inputs under the model explained below.
When to use Agriculture Soil Texture Silt Percentage Calculator
Use Agriculture Soil Texture Silt Percentage Calculator to evaluate the supplied inputs under the model explained below. Establish the units, measurement scope and model assumptions before entering values.
How to use Agriculture Soil Texture Silt Percentage Calculator and understand its results
- Establish the units, measurement scope and model assumptions before entering values.
- Enter Observed fine silt clay mass kg, Observed separated sand mass kg, Observed included clay mass kg, Uncaptured silt analysis mass kg using the field table and validation rules below, then run the tool.
- Read Observed recovered component percent, Recovered mass closure fraction; interpret the units, signs, ordering and unknown-value placeholders described below.
- Correct reported input errors and rerun. Apply successful results according to their specific meanings and check the assumptions before using them in a decision.
| Input field | Meaning | Value type | Requirement |
|---|---|---|---|
| observedFineSiltClayMassKg | Observed fine silt clay mass kg | array of number | Required; constraints below |
| observedSeparatedSandMassKg | Observed separated sand mass kg | array of number | Required; constraints below |
| observedIncludedClayMassKg | Observed included clay mass kg | array of number | Required; constraints below |
| uncapturedSiltAnalysisMassKg | Uncaptured silt analysis mass kg | array of number | Required; constraints below |
Enter nonempty aligned nonnegative fine-fraction, separated-sand, included-clay and uncaptured-analysis masses in kg. Require clay≤fine per record. Silt target is sum(fine−clay), recovered=sum(fine)+sum(sand)>0 and total=recovered+sum(uncaptured). Return 100×target/recovered and recovered/total. Uncaptured material is not assigned to silt; no sedimentation correction or texture class is inferred.
recoveredSiltPercent=100Σ(fine−clay)/(Σfine+Σsand); closure=recovered/(recovered+uncaptured) Use the field order, units and branch conditions described above.
| Output field | Meaning | Value type |
|---|---|---|
| observedRecoveredComponentPercent | Observed recovered component percent | number |
| recoveredMassClosureFraction | Recovered mass closure fraction | number |
{
"input": {
"observedFineSiltClayMassKg": [
2,
3
],
"observedIncludedClayMassKg": [
1,
1
],
"observedSeparatedSandMassKg": [
2,
3
],
"uncapturedSiltAnalysisMassKg": [
1,
1
]
},
"output": {
"observedRecoveredComponentPercent": 30,
"recoveredMassClosureFraction": 0.8333333333333334
}
}Limitations and assumptions
Recovered-component percentage and total mass closure describe different aspects of that analysis. Apply the exact scope and assumptions explained above.
All listed fields require explicit values. Unexpected fields, incorrect types, nonfinite numbers and sparse arrays fail validation. Domain-specific bounds, alignments and supported tokens are explained above; extremely large inputs or outputs can also be rejected. Input errors differ from successful false results, empty match lists and unknown-evidence placeholders.
Alternative or Complementary methods
Use Agriculture Soil Texture Sand Percentage Calculator for a related task: Sand percentage can be based on recovered material while uncaptured mass is tracked separately.
Use Agriculture Soil Texture Clay Percentage Calculator for a related task: Clay measurements from an aliquot need a declared expansion to the whole dispersion.
References
Similar or alternative tools
- Agriculture Soil Texture Sand Percentage Calculator
Sand percentage can be based on recovered material while uncaptured mass is tracked separately.
- Agriculture Soil Texture Clay Percentage Calculator
Clay measurements from an aliquot need a declared expansion to the whole dispersion.