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.
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.
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, K and lime guidance.
Zone Forge reads every West Virginia soil test in its own state's language, then builds source-cited fertilizer and lime recommendations and full variable-rate prescriptions. See the science →