View Full ScreenALA Lime Calculator

The Lime Calculator allows users to calculate a recommended liming rate (t/ha) based on the cropping (enterprise type), measured soil pH, soil type and liming material to be applied.

The system uses ALA recommendations and was developed in partnership with The University of Hertfordshire; Agriculture and the Environment Research Unit (AERU).

Step 1: Select Farming Enterprise

Arable Grass

Step 2: Current Soil pH

Step 3: Soil Classification

The Liming Application Required
Calcium carbonate (ground limestone) required to achieve target pH in tonnes per hectare. Calcium carbonate in this calculator is based on a ground limestone with an NV of 54 and 40% passing through a 150 micron mesh, this is in accordance with the Fertiliser Regulations 1991.

AgLime Application
(Ground Limestone)

t/ha

Step 4: Alternative Liming Material Options

The liming rate here is for ground limestone, if you are using a different liming material select it from the materials list to get a more specific lime application based on the estimated NV of your material.

Application Rate
(Using Selected Material)

t/ha

Note: These are ALA recommendations

Neutralising Values

You can manually adjust the neutralising values of the lime products below.

If you have cookies enabled in your browser you can click on the Save button to permanently set the figures you enter as the default values to be used in the calculation. Click the Reset button to return the values to their original setting.

Product	NV
Granular limes
Ground limestone
Screened limestone / dust
Coarse screened limestone / dust
Ground magnesian limestone / dust
Screened magnesian limestone / dust
Coarse screened magnesian limestone
Ground chalk
Screened chalk (1 inch to dust)
Lump chalk
Hydrated lime
Silicate liming materials (slags)

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