Kentucky · Soil test

Kentucky soil-test fertilizer recommendations

Zone Forge reads your Kentucky soil test in Kentucky's own calibrated language — the critical levels and rate logic come straight from University of Kentucky — AGR-1 Lime and Fertilizer Recommendations (2025-2026), not a national average. Lime has its own live calculator for Kentucky with method-specific lab inputs.

See Kentucky recommendations → Kentucky lime guide

Crops covered

University of Kentucky — AGR-1 Lime and Fertilizer Recommendations (2025-2026) rates these crops in Kentucky:

AlfalfaBarleyCanolaCloverCornCorn silageGrass / forageGrass hayOatsPastureRyeSmall grainsSorghumSoybeansTobaccoWheat

Published source: University of Kentucky — AGR-1 Lime and Fertilizer Recommendations (2025-2026)

Frequently asked

What soil-test method does Kentucky use?

University of Kentucky — AGR-1 Lime and Fertilizer Recommendations (2025-2026). Zone Forge cites the publication on every recommendation.

Is the Kentucky soil-test calculator free?

Yes — the Kentucky soil-test recommendation calculator is free and needs no signup. Enter your lab values for source-cited P and K; Kentucky's live lime calculator is available separately with its own required lab inputs.

Can Zone Forge calculate a Kentucky lime rate?

Yes — the free soil-test calculator covers source-cited P and K. Kentucky also has a live lime calculator on Zone Forge that uses the state's published method. Open the Kentucky lime guide or lime calculator for tons of CaCO3-equivalent per acre.

Zone Forge reads every Kentucky soil test in its own state's language, then builds source-cited fertilizer and a live lime calculator and full variable-rate prescriptions. See the science →