v2.2 (2026-08-23) · Laboski, C.A.M. and Peters, J.B. (2012, chapter reviewed June 18 2024). 'Nutrient Application Guidelines for Field, Vegetable, and Fruit Crops in Wisconsin' (A2809). University of Wisconsin–Madison Division of Extension. Crops and Soils web mirror: https://cropsandsoils.extension.wisc.edu/articles/nutrient-application-guidelines-for-field-vegetable-and-fruit-crops-in-wisconsin-a2809/. PDF: http://learningstore.uwex.edu/assets/pdfs/A2809.pdf. Authoritative reference cited by Wisconsin Administrative Code NR 151.075(11)(c) for current soil-test fertilizer recommendations.
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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