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Calcolatore Fabbisogno di Calce

Stima semplificata della calce necessaria per portare il pH del suolo al valore target.

Introduzione

Lime Requirement Calculator — Simplified lime estimate to raise soil pH to target. Enter Current soil pH, Target pH, Buffer factor (tons/acre per pH unit) to get an instant, accurate result.

Formula

Simplified estimate: lime (tons/acre) = (target pH − current pH) × buffer factor, with a default buffer factor of about 1.8 tons/acre per pH unit for a loam soil. This is a rough planning estimate, not a lab-grade recommendation — actual lime rates depend on a buffer pH (SMP) soil test, which accounts for soil texture, cation exchange capacity, and organic matter.

Passo dopo passo

  1. Enter the Current soil pH.
  2. Enter the Target pH.
  3. Enter the Buffer factor (tons/acre per pH unit).
  4. Click Calculate to see your result instantly.

Esempio pratico

Example: With Current soil pH = 5.5, Target pH = 6.5, Buffer factor (tons/acre per pH unit) = 1.8, the Lime Requirement Calculator gives Lime Tons Per Acre: 1.8, Note: Simplified estimate; use a buffer pH soil test for real recommendations..

Domande Frequenti

Is this the same number my soil test report would give?
No — this uses a single generic buffer factor, while a real lab recommendation is based on your soil's specific buffer pH test result and can differ meaningfully depending on soil texture and organic matter.
Why can I change the buffer factor?
Different soil types (sandy vs. clay, low vs. high organic matter) need more or less lime to shift pH by the same amount, so adjusting the factor lets you approximate your soil type more closely.
What inputs does the Lime Requirement Calculator need?
You'll need to provide: Current soil pH, Target pH, Buffer factor (tons/acre per pH unit). All fields use sensible defaults, so you can see a working example immediately and then adjust the values to match your own numbers.
How accurate is the Lime Requirement Calculator?
The Lime Requirement Calculator applies the formula exactly as calculated — Simplified estimate: lime (tons/acre) = (target pH − current pH) × buffer factor, with a default buffer factor of about 1.8 tons/acre per pH unit for a loam soil. This is a rough planning estimate, not a lab-grade recommendation — actual lime rates depend on a buffer pH (SMP) soil test, which accounts for soil texture, cation exchange capacity, and organic matter. — so results are precise for the inputs you provide. Accuracy depends on entering correct, realistic input values.
Is the Lime Requirement Calculator free to use?
Yes, the Lime Requirement Calculator is completely free, requires no signup, and runs instantly in your browser.

Informazioni su Calcolatore Fabbisogno di Calce

The Lime Requirement Calculator uses a real, verifiable formula — Simplified estimate: lime (tons/acre) = (target pH − current pH) × buffer factor, with a default buffer factor of about 1.8 tons/acre per pH unit for a loam soil. This is a rough planning estimate, not a lab-grade recommendation — actual lime rates depend on a buffer pH (SMP) soil test, which accounts for soil texture, cation exchange capacity, and organic matter. — so results are accurate every time, not an approximation.