Sugar beet fertilization is more specific than other field crops, which is reflected in the fact that to achieve high sugar yield per unit area, with a high root yield is very important and its technological quality. Researches of impact of fertilization on these sugar beet traits in the period of three years are conducted in the stationary field experiment at the Institute of Field and Vegetable Crops in Novi Sad, Serbia, at Rimski Šančevi experimental station. The experiment was carried out on ten fertilization variants with increasing doses of N, P 2 O 5 and K 2 O, and the object of investigation was a local variety Sara. Root yield was the highest on the fertilization variants with the highest amounts of nitrogen fertilizer, but in any case, the difference in yield was not statistically significant in comparison with variants in which it was applied 100 kg N ha -1 . The sugar content significantly decreased, while the content of harmful nitrogen and sodium significantly increased with increasing doses of N. Refined sugar yield was the highest at the fertilization variant N 100 P 50 K 50 .

sugar beet; fertilization; nitrogen; root yield; sugar yield; technological quality

Presentation: oral