Zone Forge reads your New Jersey soil test in New Jersey's own calibrated language — the critical levels and rate logic come straight from New Jersey — Rutgers Cooperative Extension / NJAES, not a national average.
Per New Jersey — Rutgers Cooperative Extension / NJAES — below the critical level, a yield response to the added nutrient is expected.
Published source: New Jersey — Rutgers Cooperative Extension / NJAES
New Jersey — Rutgers Cooperative Extension / NJAES. Zone Forge cites the publication on every recommendation.
Yes — the New Jersey 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 New Jersey soil test in its own state's language, then builds source-cited fertilizer and lime recommendations and full variable-rate prescriptions. See the science →