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Calcimator

Precision Fertilizer Rate Calculator

Calculate variable rate fertilizer application from soil test levels, target PPM, and crop nutrient removal.

Inputs

ppm
ppm
lbs/ac
%
$/ton
acres

Results

Fertilizer Rate

163 lbs/ac

Total Cost

$8,478.26

Nutrient Deficiency15 ppm
Total Nutrient Need75 lbs/ac
Cost per Acre$52.99
Total Fertilizer13.04 tons
How to Use This Calculator
  1. Enter Soil Test Level, Target Soil Level, and Crop Removal.
  2. Set Fertilizer Nutrient Content, Fertilizer Cost, and Field Size.
  3. Review Fertilizer Rate (lbs/ac) and Total Cost ($).
  4. Use Nutrient Deficiency (ppm) and Total Nutrient Need (lbs/ac) to inform your decision.
  5. Use the chart to visualize the results and explore different scenarios by adjusting inputs.
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