Silva Gaku, Paul Mitchell, Brian Luck and Guang Tian UW-Madison Division of Extension May 11, 2026, 5:07 a.m. CT The 2026 planting season in Wisconsin is underway, and the University of Wisconsin-Madison Division of Extension has released its preliminary findings from the 2025 Wisconsin Custom Rate Survey. This early release highlights rates for tillage and field preparation, planting activities, and the application of fertilizers and chemicals.