Influence of different combination of nutrient on the leaves number and area and sugar beet roots mass

Sugar beet is a plant that has been a part of our daily diet for centuries because it has been cultivated as a garden plant for 3000 years. It is mostly grown in the temperate climates of Europe and Asia. Sugar beet is a plant from which sugar - sucrose - is obtained from its roots. All parts of sugar beet are useful: root, head and leaves. Considering that the main reason for cultivation is the root, the leaves remain unused in further processing and are used mainly for animal feed. What should be emphasized is that these leaves have the potential to be used further in the food and chemical industries because they contain a large amount of protein and polyphenols. Therefore, more attention should be paid to the study of factors that would contribute to the growth of not only the roots but also the leaves of sugar beet. This paper dealt with the influence of different amounts of NPK on the number and surface area of leaves and the weight of roots in two sugar beet varieties - Original and Ventura. The experiment was carried out on the fields of “Tamiš” Institute, Pančevo, it lasted two years and the impact of 9 combinations of NPK was tested and the tenth was the control. The variety Original had the highest average number of leaves at N100 P50 K50 and N130 P50 K50 in the first year and at N130 P100 K100 in the second year (25.9) and Ventura at N100 P100 K100 in the first year (34.2) and at N50 P50 K50 and N130 P100 K100 (33.6). The highest average leaf area was for the Original variety in both years at N130 P50 K50 (7493.17 cm2; 7501.12 cm2) and for the Ventura variety at N100 P100 K100 (9805.59cm2; 9846.96 cm2). The high est average root weight in the Original variety was N130 P130 K130 (1kg) in the first year, and N100 P50 K50 (0.99kg) in the second year.