Virginia's land-grant extension publishes a method — not a one-size-fits-all rate. Virginia Tech VTSTL Modified Mehlich Buffer. Lime = VTSTL's own published buffer-index equations (recommendation guidebook pg. 100), one per crop target pH (5.2/5.8/6.2/6.5/6.8), on a 100% CCE basis, with the water-pH decision gate (no lime until 0.2 below target) + 0.5 T/A minimum. Retired the earlier Penn State acidity-table proxy. Verified against the pg. 99 T/A table, the pg. 100 lbs/1,000-sqft twin table, and the acidity column. Live calculator uses this state's published method and citation. Enter the required soil-test values in the free calculator for tons of CaCO₃-equivalent per acre, ECCE-adjusted, with the citation.
Published source: Virginia Tech Soil Testing Laboratory — Mehlich-1 + Modified Mehlich Buffer (combined source)
It depends on the inputs Virginia's land-grant method publishes — not a single national number. Virginia Tech VTSTL Modified Mehlich Buffer. Lime = VTSTL's own published buffer-index equations (recommendation guidebook pg. 100), one per crop target pH (5.2/5.8/6.2/6.5/6.8), on a 100% CCE basis, with the water-pH decision gate (no lime until 0.2 below target) + 0.5 T/A minimum. Retired the earlier Penn State acidity-table proxy. Verified against the pg. 99 T/A table, the pg. 100 lbs/1,000-sqft twin table, and the acidity column. Enter your values in the free Zone Forge lime calculator for tons of CaCO3-equivalent per acre, with the citation.
Virginia Tech VTSTL Modified Mehlich Buffer. Lime = VTSTL's own published buffer-index equations (recommendation guidebook pg. 100), one per crop target pH (5.2/5.8/6.2/6.5/6.8), on a 100% CCE basis, with the water-pH decision gate (no lime until 0.2 below target) + 0.5 T/A minimum. Retired the earlier Penn State acidity-table proxy. Verified against the pg. 99 T/A table, the pg. 100 lbs/1,000-sqft twin table, and the acidity column. Source: see the calculator citation. Source: Virginia Tech Soil Testing Laboratory — Mehlich-1 + Modified Mehlich Buffer (combined source).
Zone Forge computes Virginia lime from that state's published land-grant method (the lab values required by this state's published method) — lime calculator, soil-test fertilizer, and full variable-rate prescriptions. See the science →