Code tool

Nutrient Balance Calculator

Enter applied and removed amounts for nitrogen, phosphorus, and potassium to calculate each nutrient balance locally.

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Use your measured values, laboratory results and product labels. Keep units and currency consistent. Enter input and removal for the same nutrient, area and period, using the same unit. The result uses your unit.

A QUICK WALKTHROUGH

How to use this tool

  1. Enter the amount applied for each nutrient.
  2. Enter the amount removed for each nutrient.
  3. Review the surplus or deficit for N, P₂O₅, and K₂O.

Formula

Nutrient balance = nutrient applied − nutrient removed. Positive values are a surplus; negative values are a deficit.

Scope

This is a single-period arithmetic comparison. It does not recommend fertilizer rates or represent multi-year soil trends, storage, losses, or plant availability.

GOOD TO KNOW

Common questions

What does a negative balance mean?

The entered removal is greater than the entered application for that nutrient.

Does this recommend fertilizer?

No. It only compares the two amounts you enter.