Agriculture Lime Requirement

Convert independently titrated soil acidity to a caller CaCO3-equivalent/product mass under depth/density/neutralization/effectiveness assumptions; does not choose target pH, titration endpoint or a field dose recommendation.

Description

A titrated acidity budget can be converted to a calcium-carbonate equivalent and then a product mass.

A titrated acidity budget can be converted to a calcium-carbonate equivalent and then a product mass. Depth, soil density and neutralization assumptions determine the treated inventory.^[1]

When to use Agriculture Lime Requirement

Use this tool to convert independently titrated soil acidity to a caller CaCO3-equivalent/product mass under depth/density/neutralization/effectiveness assumptions; does not choose target pH, titration endpoint or a field dose recommendation.

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 Lime Requirement 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 titratedAcidityCmolChargePerKg, soilBulkDensityKgPerM3, treatmentDepthM, neutralizingGramsCaCO3PerMolCharge, productNeutralizingValueFraction, fieldReactionEffectivenessFraction using the field table and calculation rules, then run the tool.
Read titratedPureCaCO3EquivalentTonnesPerHa, modelLimeProductTonnesPerHa. 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
titratedAcidityCmolChargePerKg	Titrated acidity cmol charge per kg	number	Required
soilBulkDensityKgPerM3	Soil bulk density kg per m3	number	Required
treatmentDepthM	Treatment depth m	number	Required
neutralizingGramsCaCO3PerMolCharge	Neutralizing grams ca c o3 per mol charge	number	Required
productNeutralizingValueFraction	Product neutralizing value fraction	number	Required
fieldReactionEffectivenessFraction	Field reaction effectiveness fraction	number	Required

Enter nonnegative titrated acidity and positive soil density, depth and neutralizing g CaCO₃ per mol charge. Supply product neutralizing value and field effectiveness greater than zero and at most one. Return pure-equivalent tonnes/ha and that amount divided by both fractions as modeled product tonnes/ha.

soilKg/ha = bulkDensity × depth × 10000; CaCO3 t/ha = acidityCmol/kg × 0.01 × soilKg × gramsPerMolCharge/10⁶

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

Output field	Meaning	Value type
titratedPureCaCO3EquivalentTonnesPerHa	Titrated pure ca c o3 equivalent tonnes per ha	number
modelLimeProductTonnesPerHa	Model lime product tonnes per ha	number

json

{
  "input": {
    "titratedAcidityCmolChargePerKg": 2,
    "soilBulkDensityKgPerM3": 1000,
    "treatmentDepthM": 0.1,
    "neutralizingGramsCaCO3PerMolCharge": 50,
    "productNeutralizingValueFraction": 0.8,
    "fieldReactionEffectivenessFraction": 0.5
  },
  "output": {
    "titratedPureCaCO3EquivalentTonnesPerHa": 1,
    "modelLimeProductTonnesPerHa": 2.5
  }
}

Limitations and assumptions

The titration endpoint and product response are independently supplied. The tool does not choose target pH or recommend a field application; soil heterogeneity and reaction kinetics are excluded.

Numeric inputs must be finite. Follow the calculation-specific rules for overflow, underflow and exceptional cases. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors.

Alternative or Complementary methods

Use Agriculture Fertilizer Requirement Phosphorus: Account harvest P removal plus caller soil-build budget and credits, explicitly separating elemental P, P2O5 and product mass; distinct from N recovery/uptake balance, without soil-test recommendations. For a complementary task, use Agriculture Fertilizer Requirement Nitrogen: Balance caller crop N uptake/available soil/other credits with explicit recovery/product fractions; a simple accounting scenario, not agronomic sufficiency, environmental permission or application recommendation.

References

Agriculture Lime Requirement — tool.io

Similar or alternative tools

Agriculture Fertilizer Requirement Phosphorus
Account harvest P removal plus caller soil-build budget and credits, explicitly separating elemental P, P2O5 and product mass; distinct from N recovery/uptake balance, without soil-test recommendations.
Agriculture Fertilizer Requirement Nitrogen
Balance caller crop N uptake/available soil/other credits with explicit recovery/product fractions; a simple accounting scenario, not agronomic sufficiency, environmental permission or application recommendation.