Zone Forge reads your Vermont soil test in Vermont's own calibrated language — the critical levels and rate logic come straight from University of Vermont — Reactive Aluminum + Modified Morgan (UVM AETL), not a national average. Lime has its own live calculator for Vermont with method-specific lab inputs.
University of Vermont — Reactive Aluminum + Modified Morgan (UVM AETL) rates these crops in Vermont:
More crops via alternate guides selectable in Vermont: New England Vegetable Management Guide 2025-2026.
Published source: University of Vermont — Reactive Aluminum + Modified Morgan (UVM AETL)
University of Vermont — Reactive Aluminum + Modified Morgan (UVM AETL). Zone Forge cites the publication on every recommendation.
Yes — the Vermont soil-test recommendation calculator is free and needs no signup. Enter your lab values for source-cited P and K; Vermont's live lime calculator is available separately with its own required lab inputs.
Yes — the free soil-test calculator covers source-cited P and K. Vermont also has a live lime calculator on Zone Forge that uses the state's published method. Open the Vermont lime guide or lime calculator for tons of CaCO3-equivalent per acre.
Zone Forge reads every Vermont 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 →