Coverage · Source

WVU Extension — Mehlich-3 ICP + LR Mehlich Buffer (Crop Fertilization Recommendations)

v2.2 (2026-08-23) · Rayburn, E.B. 'WVU Extension Crop Fertilization Recommendations.' West Virginia University Extension — Agriculture and Natural Resources. Companion WVU Davis College Soil Testing Lab procedures: https://researchrepository.wvu.edu/cgi/viewcontent.cgi?article=4220&context=faculty_publications. WVU Soil Testing services page: https://soiltesting.wvu.edu/mission-services. Soil testing report interpretation: https://extension.wvu.edu/natural-resources/soil-water/using-the-wvu-soil-testing-report. Liming Principles fact sheet: https://extension.wvu.edu/files/d/a7092528-c722-4ffc-a869-9824cdfe9936/limeprincpls.pdf.

Crop-removal based Computes rates in-app Lime / pH
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Crops covered

AlfalfaBarleyBermudagrassCloverCornCorn silageGrass hayOatsPastureSorghumSoybeansWheat

Nutrient source for

WV

Lime / pH source for

WV

Frequently asked

What method does WVU Extension — Mehlich-3 ICP + LR Mehlich Buffer (Crop Fertilization Recommendations) use?

Crop-removal based. Zone Forge computes this source's supported nutrient rates in-app and cites the published method. Its published lime method is computed in-app too.

Is this free to use?

Yes — Zone Forge's calculators are free and need no signup. This page shows the states and crops WVU Extension — Mehlich-3 ICP + LR Mehlich Buffer (Crop Fertilization Recommendations) covers so you can verify the source behind your recommendation.

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