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Fertilizer Rate Calculator

Formula

To calculate the Fertilizer Rate:

$FR = \frac{RN}{\left(\frac{PN}{100}\right)}$

Where:

Let's assume the following values:

Step 1: Convert the percentage to a decimal:

$\frac{PN}{100} = \frac{10}{100} = 0.1$

Step 2: Divide the rate of desired nutrient by the decimal value:

$FR = \frac{50}{0.1} = 500 \text{ lbs of fertilizer}$

Let's assume the following values:

Step 1: Convert the percentage to a decimal:

$\frac{PN}{100} = \frac{15}{100} = 0.15$

Step 2: Divide the rate of desired nutrient by the decimal value:

$FR = \frac{30}{0.15} = 200 \text{ lbs of fertilizer}$