Necheminės piktžolių kontrolės metodų poveikis cukrinių runkelių kokybės ir produktyvumo rodikliams

Abstract

A long – term stationary field experiment was carried out at the Experimental Station of the Aleksandras Stulginskis University (ASU) in 2017. The aim was to evaluate the impact of non – chemical weed control systems on the ecologically growing sugar beet crop productivity and quality parameters. It was examined these weed control systems: 1) inter – row loosening (control treatment); 2) inter - row cutting and mulching with weeds; 3) inter - row cutting and mulching with Persian clover; 4) inter - row cutting and mulching with white mustards; 5) inter - row cutting and mulching with spring barley. Sugar beet was seeded in 2017 May 8 and harvested of in October 19. The highest productivity (50.65 t ha-1) got the sugar beet, which was growed by applying inter - row cutting and mulching with white mustards. The lowest (30.46 t ha-1) productivity of sugar beet was in treatments, where was applying inter - row cutting and mulching with spring barley (P<0.01). Different weed control methods had mainly insignificant influence on sugar beet quality parameters – potassium, sodium and alpha amino nitrogen contents. The highest sugar content (16.34 %) was in beet, that grown in treatments, where was applied inter - row cutting and mulching with spring barley (P<0.05).