Zone Forge reads your Virginia soil test in Virginia's own calibrated language — the critical levels and rate logic come straight from Virginia Tech Soil Testing Laboratory — Mehlich-1 + Modified Mehlich Buffer (combined source), not a national average. Lime has its own live calculator for Virginia with method-specific lab inputs.
Virginia Tech Soil Testing Laboratory — Mehlich-1 + Modified Mehlich Buffer (combined source) rates these crops in Virginia:
More crops via alternate guides selectable in Virginia: Mid-Atlantic Commercial Vegetable Production Recommendations 2026/2027.
Published source: Virginia Tech Soil Testing Laboratory — Mehlich-1 + Modified Mehlich Buffer (combined source)
Virginia Tech Soil Testing Laboratory — Mehlich-1 + Modified Mehlich Buffer (combined source). Zone Forge cites the publication on every recommendation.
Yes — the Virginia soil-test recommendation calculator is free and needs no signup. Enter your lab values for source-cited P and K; 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. Virginia also has a live lime calculator on Zone Forge that uses the state's published method. Open the Virginia lime guide or lime calculator for tons of CaCO3-equivalent per acre.
Zone Forge reads every 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 →