Estimate nutrient needs from soil test results, including nitrogen, phosphorus, potassium, lime, pH adjustment, organic matter, fertilizer cost, and amendment needs. Use this soil test calculator for crop fields, gardens, pastures, food plots, hay fields, and soil fertility planning.
Nutrient gap:
The calculator compares soil test levels with target levels for nitrogen, phosphorus, and potassium.
Fertilizer needed:
Nutrient gaps are divided by fertilizer analysis percentages and application efficiency to estimate product needed.
Lime needed:
Current pH, target pH, buffer pH, and CEC are used to estimate lime tons per acre.
Total cost:
Fertilizer cost, lime cost, and application cost are used to estimate total project cost.
A soil test calculator helps turn soil test numbers into rough nutrient, lime, fertilizer, and amendment estimates.
It can help compare soil pH, target pH, organic matter, CEC, nutrient gaps, fertilizer product needed, lime tons, and total application cost.
Your result shows estimated nitrogen gap, phosphorus gap, potassium gap, fertilizer pounds needed, fertilizer tons needed, lime tons needed, nutrient status, fertilizer cost, lime cost, application cost, total cost, and cost per acre. These are estimates based on the values you enter.
Enter your soil test values, target nutrient levels, area, fertilizer analysis, and costs. The calculator estimates nutrient gaps, fertilizer needed, lime needed, and total cost.
No. This calculator gives an estimate. Soil lab recommendations, local extension guidance, crop goals, soil type, and local nutrient rules should be used for final decisions.
Subtract the soil test nutrient level from the target nutrient level, adjust for efficiency, then divide by the nutrient percentage in the fertilizer product.
Soil pH affects nutrient availability, lime requirements, microbial activity, and crop growth. Low pH may reduce the effectiveness of fertilizer applications.