Updates to A2809: 2026 Wisconsin N, P, and K Recommendations for Corn and Soybeans

Dr. Matt Ruark, UW–Madison Extension soils and nutrient cycling specialist and professor of soil science, discusses what’s changing in Wisconsin nutrient management guidelines for corn and soybeans.

This video covers upcoming updates to A2809, including nitrogen rate adjustments, phosphorus and potassium recommendations, and how soil type, crop rotation, and fertilizer prices affect decisions in the field.