West Virginia's land-grant extension doesn't use a one-size-fits-all number — it uses a published method. WVU LR Mehlich Buffer — combined source v2.0 (2026-05-27). Lime block now ships verbatim WVU Extension Crop Fertilization Recommendations Table 14 regression LR = 100.1 - 26.56·BpH + 1.728·BpH² (replaces prior placeholder PSU acidity table) + Table 14 verbatim lookup (BpH 4.2-6.6); surface-applied rules (2 ton ENV trigger at pH<6.0 or <6.5 depending on crop optimal pH); alfalfa 3-ton no-till and 3+3-ton conventional seeding rules; Table 9 crop pH preferences (37 crops). Lime quality reference: ≥90% CCE, 20/100 mesh distribution. Enter your soil-test values in the free calculator and Zone Forge returns tons of CaCO₃-equivalent per acre, ECCE-adjusted, with the citation.
Published source: WVU Extension — Mehlich-3 ICP + LR Mehlich Buffer (Crop Fertilization Recommendations)
It depends on your soil's buffer/acidity reading and your target pH — West Virginia publishes a method, not a single number. WVU LR Mehlich Buffer — combined source v2.0 (2026-05-27). Lime block now ships verbatim WVU Extension Crop Fertilization Recommendations Table 14 regression LR = 100.1 - 26.56·BpH + 1.728·BpH² (replaces prior placeholder PSU acidity table) + Table 14 verbatim lookup (BpH 4.2-6.6); surface-applied rules (2 ton ENV trigger at pH<6.0 or <6.5 depending on crop optimal pH); alfalfa 3-ton no-till and 3+3-ton conventional seeding rules; Table 9 crop pH preferences (37 crops). Lime quality reference: ≥90% CCE, 20/100 mesh distribution. Enter your values in the free Zone Forge lime calculator for tons of CaCO3-equivalent per acre, with the citation.
WVU LR Mehlich Buffer — combined source v2.0 (2026-05-27). Lime block now ships verbatim WVU Extension Crop Fertilization Recommendations Table 14 regression LR = 100.1 - 26.56·BpH + 1.728·BpH² (replaces prior placeholder PSU acidity table) + Table 14 verbatim lookup (BpH 4.2-6.6); surface-applied rules (2 ton ENV trigger at pH<6.0 or <6.5 depending on crop optimal pH); alfalfa 3-ton no-till and 3+3-ton conventional seeding rules; Table 9 crop pH preferences (37 crops). Lime quality reference: ≥90% CCE, 20/100 mesh distribution. Source: WVU Extension — Mehlich-3 ICP + LR Mehlich Buffer (Crop Fertilization Recommendations).
Zone Forge computes every West Virginia recommendation from that state's own published land-grant method — lime, soil-test fertilizer, and full variable-rate prescriptions. See the science →