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University of Vermont — Reactive Aluminum + Modified Morgan (UVM AETL)

v2.2 (2026-06-10) · Bosworth et al. (Sep 2020), 'Nutrient Recommendations for Field Crops in Vermont', UVM Extension Brochure BR 1390.3. Modified Morgan (1.25 M NH4 acetate, pH 4.8) extractant. Reactive Al method traces to Magdoff & Bartlett (1982) 'Reactive aluminum in the Vermont soil test', Commun. Soil Sci. Plant Anal. 13:7.

State extension method Computes rates in-app Lime / pH
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Crops covered

AlfalfaBarleyBuckwheatCloverConservation plantingCornCorn silageDry beansField peasGrass / forageGrass hayMilletOatsPeasRyeSmall grainsSoybeansWheat

Nutrient source for

VT

Lime / pH source for

VT

Frequently asked

What method does University of Vermont — Reactive Aluminum + Modified Morgan (UVM AETL) use?

State extension method. 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.

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Yes — Zone Forge's calculators are free and need no signup. This page shows the states and crops University of Vermont — Reactive Aluminum + Modified Morgan (UVM AETL) covers so you can verify the source behind your recommendation.

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