Enhanced efficiency fertilizer technologies for improved production in sweet corn (2015)

Publication Date: 
Urea is a common nitrogen fertilizer for sweet corn production. This two year project evaluated commercially available urea additives for their potential to provide crop production and environmental benefits. Specifically, experiments were designed to evaluate the efficacy of urea fertilizer products containing a urease inhibitor (Agrotain Ultra), or nitrification inhibitors, or a polymer coated urea product (ESN). Products containing nitrification inhibitors (SuperU and Instinct) were evaluated only in 2014, and found to have efficacy similar to ESN in slowing conversion of urea to leachable nitrate-N. The control treatment in all studies was granular urea without additives.
Sullivan et al. (2015) Enhanced efficiency fertilizers.pdf773.41 KB

Research report to the Oregon Processed Vegetable Commission

PI Dan Sullivan
OSU Dept. Crop and Soil Science

Co-PIs Aaron Heinrich and Ed Peachey
OSU Dept. of Horticulture


Oregon Processed Vegetable Commission, Processed Vegetable Production, Willamette Valley, Soil and nutrient management, Corn