Split application of nitrogen (N) is a management strategy for corn that has been practiced on a limited basis for years. Coarse-textured, sandy soils have often received split applications to improve N uptake and efficiency and reduce leaching loss. Some N (less than half) is generally applied prior to or at planting and the rest (usually more than half) is sidedress applied prior to tasseling. The sidedress applications may consist of either a single application or multiple applications, which are usually associated with irrigation. Because a greater portion of the N is applied closer to the time of maximum N uptake, split application strategies are often considered as being more efficient and environmentally sound. For these reasons and others, split application of N is becoming more popular on medium and fine-textured soils. Additionally, as the price of N increases, growers will give greater consideration to N management practices that are more efficient and save money. The purpose of this paper is to present information and recommendations on split N application strategies, based on more than 60 site-years of field data with corn on medium and fine-textured soils in southern Minnesota.