Agriculture, Soil, Fertilizer & Farm Operations worked example

Soil pH Adjustment with target soil ph of 16 pH: a worked example

This scenario runs the soil ph adjustment calculation on the strong side: target soil ph of 16 pH, with every other input held at its documented default. Use it to decide whether the planned lime or acidifying amendment program closes the pH gap enough to revisit with a soil test.

The inputs for this scenario

  • Target soil pH: 16 pH (raised for this scenario; the documented default is 6.5)
  • Current soil pH: 5.8 pH (unchanged)
  • Expected amendment pH change: 0.5 pH (unchanged)
  • Additional planned pH correction: 0 pH (unchanged)

Working through the calculation

  • Applying the documented formula (Remaining pH gap = target pH - current soil pH - expected amendment change - additional correction) to the inputs above produces each figure below.
  • At this operating point the engine returns 9.7 pH units for remaining soil ph gap, the number this scenario is built around.
  • At this operating point the engine returns 6.3 value for expected ph correction.
  • At this operating point the engine returns 16 value for target soil ph.
  • At this operating point the engine returns 60.62 % for utilization.

How this compares with the baseline

  • Against the tool's baseline example, where target soil ph sits at 6.5 pH and the headline result is 0.2 pH units, this scenario comes in 4,750% above the baseline at 9.7 pH units.
  • Use it when planning a liming or acidifying program to verify the amendments on paper add up to the target pH before committing. Treat this as a target state: the delta against the baseline quantifies what the improvement is worth before you commit to chasing it.

Results at a glance

  • Remaining soil pH gap: 9.7 pH units (headline result)
  • Expected pH correction: 6.3 value
  • Target soil pH: 16 value
  • Utilization: 60.62 %

Run it with your numbers

  • Every input above is editable in the live Soil pH Adjustment calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.