Lime Application Rate Calculator

Formula

The formula to calculate the lime application rate (LAR) is:

\[ LAR = \frac{SR \cdot TR \cdot 100}{PR \cdot LR} \]

Where:

\( LAR \) is the lime application rate
\( SR \) is the soil test recommendation
\( TR \) is the target rate
\( PR \) is the purity of the lime
\( LR \) is the lime reaction factor

Definition

Lime Application Rate: The amount of lime applied to a specific area of soil to correct its acidity levels. This rate is determined by a soil test, which measures the soil’s pH level and buffer capacity. The goal is to neutralize the soil’s acidity, improve nutrient availability, and promote plant health and growth.

Example

Let's say the soil test recommendation (SR) is 5, the target rate (TR) is 2, the purity of the lime (PR) is 90, and the lime reaction factor (LR) is 0.8. Using the formula:

\[ LAR = \frac{5 \cdot 2 \cdot 100}{90 \cdot 0.8} \]

We get:

\[ LAR = \frac{1000}{72} \approx 13.89 \]

So, the lime application rate is approximately 13.89.