Agriculture Thousand Seed Weight
Pool unequal counted seed subsamples and conserve dry matter to a caller reporting moisture basis; unlike a fixed unit weight, differing sample counts/moisture are explicit.
Description
Thousand-seed weight should pool unequal subsamples by actual seed counts.
Thousand-seed weight should pool unequal subsamples by actual seed counts. Moisture standardization conserves dry matter before expressing the result on a chosen reporting basis.1
Pool unequal counted seed subsamples and conserve dry matter to a caller reporting moisture basis; unlike a fixed unit weight, differing sample counts/moisture are explicit.
When to use Agriculture Thousand Seed Weight
Use this tool to pool unequal counted seed subsamples and conserve dry matter to a caller reporting moisture basis; unlike a fixed unit weight, differing sample counts/moisture are explicit.
Prepare the field, crop, soil or material measurements for the intended period. Confirm units, dry/wet bases and supplied parameters; keep paired observations aligned.
How to use Agriculture Thousand Seed Weight and understand its results
- Prepare the field, crop, soil or material measurements for the intended period. Confirm units, dry/wet bases and supplied parameters; keep paired observations aligned.
- Enter seedSubsampleMassesGrams, seedSubsampleCounts, observedMoistureFractions, reportingMoistureFraction using the field table and calculation rules, then run the tool.
- Read pooledObservedThousandSeedMassGrams, pooledMoistureStandardizedThousandSeedMassGrams. The explanation below defines the units, signs, ordering and any flags or placeholder values.
- If the tool reports an input issue, correct the values and run it again. Apply the stated assumptions when interpreting a successfully returned result.
| Input field | Meaning | Value type; see rules below | Requirement |
|---|---|---|---|
| seedSubsampleMassesGrams | Seed subsample masses grams | list of number | Required |
| seedSubsampleCounts | Seed subsample counts | list of number | Required |
| observedMoistureFractions | Observed moisture fractions | list of number | Required |
| reportingMoistureFraction | Reporting moisture fraction | number | Required |
Pair positive integer seed counts with nonnegative gram masses and wet-basis moisture fractions in [0,1). Supply reporting moisture in the same range. Return pooled observed and moisture-standardized grams per thousand seeds. Subsample means are not averaged equally.
Paired lists must be nonempty and have equal lengths.
observedTSW = 1000Σmass/Σcount; standardizedTSW = 1000Σ[mass_i(1−moisture_i)/(1−reportingMoisture)]/Σcount Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.
| Output field | Meaning | Value type |
|---|---|---|
| pooledObservedThousandSeedMassGrams | Pooled observed thousand seed mass grams | number |
| pooledMoistureStandardizedThousandSeedMassGrams | Pooled moisture standardized thousand seed mass grams | number |
{
"input": {
"seedSubsampleMassesGrams": [
1,
3
],
"seedSubsampleCounts": [
100,
200
],
"observedMoistureFractions": [
0.1,
0.2
],
"reportingMoistureFraction": 0.1
},
"output": {
"pooledObservedThousandSeedMassGrams": 13.333333333333334,
"pooledMoistureStandardizedThousandSeedMassGrams": 12.222222222222223
}
}Limitations and assumptions
Counts, moisture and sample representativeness are supplied observations. No species weight lookup, viability estimate or measurement uncertainty is inferred.
Numeric inputs must be finite. Follow the calculation-specific rules for overflow, underflow and exceptional cases. Numeric lists are limited to 100,000 entries; the rules above may require smaller limits. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors.
Alternative or Complementary methods
Use Agriculture Seeding Rate: Calculate field seed-count/mass requirements from target established stand with separate purity, laboratory germination and field-establishment assumptions; differs from tray-based sowing and is not a species seeding recommendation. For a complementary task, use Agriculture Harvest Moisture Adjustment: Account harvested lots with differing wet-basis moisture and explicitly retained dry matter before reporting-basis mass; unlike standalone moisture conversion, actual graded/handling dry-matter loss is separately conserved.
References
-
Agriculture Thousand Seed Weight — tool.io
Similar or alternative tools
- Agriculture Seeding Rate
Calculate field seed-count/mass requirements from target established stand with separate purity, laboratory germination and field-establishment assumptions; differs from tray-based sowing and is not a species seeding recommendation.
- Agriculture Harvest Moisture Adjustment
Account harvested lots with differing wet-basis moisture and explicitly retained dry matter before reporting-basis mass; unlike standalone moisture conversion, actual graded/handling dry-matter loss is separately conserved.