Mineral and foliar fertilization are the main source of nutrients for seedlings in nurseries. The paper presents the results of comparing effects of different methods of fertilization and various fertilizers containing nitrogen on the height of the two-year seedlings of oak (Quercus robur L.), in subsequent years of production cycle. Acorns were sown on 7.11.2011. In the experiment were analyzed six variants of fertilization: (1) control without fertilization; (2) 24 kg N/ha – foliar 1% Urea + 2.04 kg N/ha – foliar 1% Bioekor; (3) 24 kg N/ha – foliar 1% Urea + 0.72 kg N/ha – foliar 1% Florovit; (4) 24 kg N/ha – soil, ammonium nitrate + 2.04 kg N/ha – foliar 1% Bbioekor; (5) 24 kg N/ha – soil, ammonium nitrate + 0.72 kg N/ha – foliar 1% Florovit; (6) 24 kg N/ha – soil, ammonium nitrate + 24 kg N/ha – foliar 1% Urea. The average height of the one-year oak seedlings was 16.24 cm. Analysis of variance for height did not show statistically significant differences between the variants. The average height of two-year seedlings of oak was 43.38 cm. The analysis contrasts measurements carried out after the second year of the experiment showed a significant difference in height between the control variant and fertilization variants. There were no differences within individual groups of subjects fertilization.

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