Zone Forge reads your Arkansas soil test in Arkansas's own calibrated language — the critical levels and rate logic come straight from University of Arkansas — pH+Ca lime + Mehlich-3 nutrient recs, not a national average.
Published source: University of Arkansas — pH+Ca lime + Mehlich-3 nutrient recs
University of Arkansas — pH+Ca lime + Mehlich-3 nutrient recs. Zone Forge cites the publication on every recommendation.
Yes — the Arkansas 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 Arkansas soil test in its own state's language, then builds source-cited fertilizer and lime recommendations and full variable-rate prescriptions. See the science →