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.
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, K and lime guidance.
Zone Forge reads every 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 →