Maryland's land-grant extension publishes a method — not a one-size-fits-all rate. The staged SFM-5 lime table is verified only at target pH 6.5 and requires a product oxide-content conversion the calculator does not yet collect. Nutrient recommendations remain available. 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.
UMD's table uses physiographic province (Coastal Plain vs Piedmont/Mountain) as a key dimension.
Published source: University of Maryland — Texture × Province lime (SFM-5) + Maryland Nutrient Management Manual FIV-based N/P/K (combined source)
It depends on the inputs Maryland's land-grant method publishes — not a single national number. The staged SFM-5 lime table is verified only at target pH 6.5 and requires a product oxide-content conversion the calculator does not yet collect. Nutrient recommendations remain available. Enter your values in the free Zone Forge lime calculator for tons of CaCO3-equivalent per acre, with the citation.
The staged SFM-5 lime table is verified only at target pH 6.5 and requires a product oxide-content conversion the calculator does not yet collect. Nutrient recommendations remain available. Source: see the calculator citation. Source: University of Maryland — Texture × Province lime (SFM-5) + Maryland Nutrient Management Manual FIV-based N/P/K (combined source).
Zone Forge computes Maryland 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 →