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About 215 farmers, agricultural extension agents and crop consultants soaked up the latest data on crop production, pest management and soil science at the UW Agronomy/Soils Field Day at UW–Madison’s Arlington Agricultural Research Station on Aug. 22.

Discussing a three-year study of nitrogen fertilizer for corn, Carrie Laboski, a UW–Madison soil science professor and UW-Extension soil scientist, compared one application at planting time vs. two applications, one at planting and a second later in the season. She found no profit advantage on the well-drained soil at Arlington, but there was often a benefit to sidedress applications on the slower-draining soil at the Marshfield Agricultural Research Station.