Zone Forge reads your New Hampshire soil test in New Hampshire's own calibrated language — the critical levels and rate logic come straight from New Hampshire — UNH Cooperative Extension Soil Testing Service, not a national average. Lime has its own live calculator for New Hampshire with method-specific lab inputs.
Per New Hampshire — UNH Cooperative Extension Soil Testing Service — below the critical level, a yield response to the added nutrient is expected.
New Hampshire — UNH Cooperative Extension Soil Testing Service rates these crops in New Hampshire:
Published source: New Hampshire — UNH Cooperative Extension Soil Testing Service
New Hampshire — UNH Cooperative Extension Soil Testing Service. Zone Forge cites the publication on every recommendation.
Yes — the New Hampshire soil-test recommendation calculator is free and needs no signup. Enter your lab values for source-cited P and K; New Hampshire's live lime calculator is available separately with its own required lab inputs.
Yes — the free soil-test calculator covers source-cited P and K. New Hampshire also has a live lime calculator on Zone Forge that uses the state's published method. Open the New Hampshire lime guide or lime calculator for tons of CaCO3-equivalent per acre.
Zone Forge reads every New Hampshire soil test in its own state's language, then builds source-cited fertilizer and a live lime calculator and full variable-rate prescriptions. See the science →