Fertilizer Application Rate Calculator
Fertilizer Application Rate
Determine the correct amount of fertilizer product to apply based on soil test recommendations, nutrient content, and field size.
Formula
Product Rate (lb/acre) = Target Nutrient / (Fertilizer % / 100); Total Product = Rate x Acres; Cost = Total Product / 2000 x Cost Per Ton
Frequently Asked Questions
How do I determine how much fertilizer to apply?
Start with a soil test to know current nutrient levels. Subtract available nutrients from crop requirements. Divide the nutrient needed by the fertilizer analysis percentage to get product rate.
What does 46-0-0 mean on fertilizer?
The three numbers represent the percentages of nitrogen (N), phosphorus (P2O5), and potassium (K2O). So 46-0-0 (urea) contains 46% nitrogen and no phosphorus or potassium.