Field experiment was carried out in the Didactic and Experimental Department in Swadzim (52^o26’ N; 16^o45’ E) near Poznań in years 2004-2007. The experiment was established in a „split-plot” design with 3 factors and 4 field replications. Reactions of two maize hybrid types to differentiated nitrogen and magnesium fertilization and to the method of magnesium application were studied. The effect of these factors on the uptake of mineral components by maize plants in the phase of 5-6 leaves (BBCH 15-16) was estimated. The hybrid LG 2244 stay-green type uptook more nitrogen, calcium, and sodium than the Anjou 258 hybrid. The highest uptake of nitrogen was obtained for the dose of 90 kg N·ha^-1, while the highest uptake of phosphorus, potassium, magnesium, calcium, and sodium was shown for the dose of 120 kg N·ha^-1. The application of magnesium increased the percentage of the uptaken share of nitrogen, phosphorus, potassium, magnesium, calcium, and sodium from the applied nitrogen fertilizer.

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