Machine Harvest Loss Percent

Audit independent preharvest/collected/ground/residual crop inventories, preserving signed unaccounted mismatch instead of forcing mass closure or calling every residual machine loss.

Description

Harvest accounting compares several independently measured crop inventories.

Harvest accounting compares several independently measured crop inventories. A closure mismatch can be positive or negative.

Audit independent preharvest/collected/ground/residual crop inventories, preserving signed unaccounted mismatch instead of forcing mass closure or calling every residual machine loss.

When to use Machine Harvest Loss Percent

Use this tool to audit independent preharvest/collected/ground/residual crop inventories, preserving signed unaccounted mismatch instead of forcing mass closure or calling every residual machine loss.

Prepare vineyard measurements, dates or block records for the intended growing period. Keep weights, counts and weather observations in the stated units.

How to use Machine Harvest Loss Percent and understand its results

Prepare vineyard measurements, dates or block records for the intended growing period. Keep weights, counts and weather observations in the stated units.
Enter preHarvestCropMassKg, collectedCropMassKg, measuredGroundLossMassKg, measuredResidualOnVineMassKg using the field table and calculation rules, then run the tool.
Read observedCollectedCropPercent, measuredGroundPlusResidualLossPercent, signedUnaccountedCropMassKg. 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
preHarvestCropMassKg	Pre harvest crop mass kg	number	Required
collectedCropMassKg	Collected crop mass kg	number	Required
measuredGroundLossMassKg	Measured ground loss mass kg	number	Required
measuredResidualOnVineMassKg	Measured residual on vine mass kg	number	Required

Use positive preharvest mass and nonnegative remaining inventories. Return collected percent, measured ground-plus-residual percent and signed unaccounted kg; do not force percentages or closure into a fixed range.^[1]

unaccounted mass = preharvest − collected − ground loss − residual on vine

Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.

Output field	Meaning	Value type
observedCollectedCropPercent	Observed collected crop percent	number
measuredGroundPlusResidualLossPercent	Measured ground plus residual loss percent	number
signedUnaccountedCropMassKg	Signed unaccounted crop mass kg	number

json

{
  "input": {
    "preHarvestCropMassKg": 1000,
    "collectedCropMassKg": 800,
    "measuredGroundLossMassKg": 100,
    "measuredResidualOnVineMassKg": 50
  },
  "output": {
    "observedCollectedCropPercent": 80,
    "measuredGroundPlusResidualLossPercent": 15,
    "signedUnaccountedCropMassKg": 50
  }
}

Limitations and assumptions

Residual crop is not automatically machine-caused loss, and measurement discrepancies remain visible.

Numbers and computed results must be finite; overflow produces an error. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors.

Alternative or Complementary methods

Use Harvest Morning Dew Correction Weight: Correct delivered grapes using caller paired before/after **surface drying** samples; unlike internal wet/dry moisture conversion, model assumes no juice/berry dry-matter loss and dew representativeness remains caller responsibility. For a complementary task, use Crop Estimate Cluster Count Method: Expand equal-probability sampled vine cluster counts to block yield with caller mature-cluster mass and count-sampling error only; no weight/selection uncertainty, harvest guarantee or optimum crop load.

References

Machine Harvest Loss Percent — tool.io

Similar or alternative tools

Harvest Morning Dew Correction Weight
Correct delivered grapes using caller paired before/after **surface drying** samples; unlike internal wet/dry moisture conversion, model assumes no juice/berry dry-matter loss and dew representativeness remains caller responsibility.
Crop Estimate Cluster Count Method
Expand equal-probability sampled vine cluster counts to block yield with caller mature-cluster mass and count-sampling error only; no weight/selection uncertainty, harvest guarantee or optimum crop load.