Ag Phd Crop Removal Calculator
Estimate the amount of nitrogen (N), phosphorus (P2O5), and potassium (K2O) removed by a crop based on yield and crop type. Helps in planning fertilizer applications.
Published by:
isCalculator Editorial Team
Was this calculator helpful?
How to use this tool?
How to Use the Ag PhD Crop Removal Calculator
- Select a crop from the dropdown (e.g., Corn Grain, Soybean, Alfalfa). The yield unit updates automatically.
- Enter your yield in the provided field. Use the unit shown below the input (e.g., bu/ac for grains, tons/ac for silage/alfalfa, bales/ac for cotton).
- Click "Calculate Removal" to see results.
- Read the results in pounds per acre (lb/ac) for Nitrogen (N), Phosphate (P₂O₅), and Potash (K₂O). The formula used is displayed below the numbers.
Important notes:
- All values are in imperial units (bushels, tons, bales per acre). No metric conversion is available.
- Yield must be a positive number. Enter only the numeric value (e.g., 180 for corn grain).
- Removal rates are based on average crop nutrient content. Actual values may vary by variety, soil, and management.
Previous Results
| Result | Inputs | Date |
|---|
Frequently Asked Questions
Crop removal refers to the amount of nutrients (N, P2O5, K2O) that are removed from the soil when a crop is harvested. Knowing this helps in planning fertilizer applications to maintain soil fertility.
Yield units vary by crop: bushels per acre for grains, tons per acre for silage and alfalfa, bales per acre for cotton. Nutrient removal is reported in pounds per acre.
The rates are average values based on typical crop nutrient content. Actual removal can vary with variety, growing conditions, and management. For precise recommendations, consult local extension services.