Zone Forge reads your West Virginia soil test in West Virginia's own calibrated language — the critical levels and rate logic come straight from WVU Extension — Mehlich-3 ICP + LR Mehlich Buffer (Crop Fertilization Recommendations), not a national average. Lime has its own live calculator for West Virginia with method-specific lab inputs.
Per WVU Extension — Mehlich-3 ICP + LR Mehlich Buffer (Crop Fertilization Recommendations) — below the critical level, a yield response to the added nutrient is expected.
WVU Extension — Mehlich-3 ICP + LR Mehlich Buffer (Crop Fertilization Recommendations) rates these crops in West Virginia:
More crops via alternate guides selectable in West Virginia: Mid-Atlantic Commercial Vegetable Production Recommendations 2026/2027.
Published source: WVU Extension — Mehlich-3 ICP + LR Mehlich Buffer (Crop Fertilization Recommendations)
WVU Extension — Mehlich-3 ICP + LR Mehlich Buffer (Crop Fertilization Recommendations). Zone Forge cites the publication on every recommendation.
Yes — the West Virginia soil-test recommendation calculator is free and needs no signup. Enter your lab values for source-cited P and K; West Virginia'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. West Virginia also has a live lime calculator on Zone Forge that uses the state's published method. Open the West Virginia lime guide or lime calculator for tons of CaCO3-equivalent per acre.
Zone Forge reads every West Virginia 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 →