Zone Forge reads your Nebraska soil test in Nebraska's own calibrated language — the critical levels and rate logic come straight from UNL EC117 / EC155 / G859 — Nebraska nutrient recommendations (lime in separate nebraska_g1504), not a national average.
Per UNL EC117 / EC155 / G859 — Nebraska nutrient recommendations (lime in separate nebraska_g1504) — below the critical level, a yield response to the added nutrient is expected.
Published source: UNL EC117 / EC155 / G859 — Nebraska nutrient recommendations (lime in separate nebraska_g1504)
UNL EC117 / EC155 / G859 — Nebraska nutrient recommendations (lime in separate nebraska_g1504). Zone Forge cites the publication on every recommendation.
Yes — the Nebraska 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 Nebraska soil test in its own state's language, then builds source-cited fertilizer and lime recommendations and full variable-rate prescriptions. See the science →