Effect of multi-component fertilizers on seeds yield, yield components and physiological parameters of winter oilseed rape (Brassica napus L.)

摘要

Subject of the discussed studies was an analysis of the impact of mineral multicomponentfertilizers, from Polish and foreign producers, on the yield and yield components ofwinter oilseed rape (Brassica napus var. oleifera). Two field experiments were carried out in2015–2017 in Lipnik. The experimental crop was winter oilseed rape, hybrid cultivar DKEXPLICIT. Two factors were studied in the experiment A: 4 multi-component mineral fertilizers- two Belarusian (1 i 2), one Russian and one Polish (Polifoska 6) and 4 doses of fertilization(250, 500 and 750 kg ha-1). In the experiment (B) were compared two factors: 3 multi-componentmineral fertilizers - Belarusian, Russian and Polish production - Polifoska 8 and 4 doses offertilization (200, 400 and 600 kg ha-1). The fertilizers applied in the experiments, manufacturedin Belarus, Russia and Poland, did not show variations in the amount of yield of winter rape. Thenumber of winter rapeseed plants on the area unit (in autumn and spring) was independent of thetype of fertilizers. In the experiment B, higher number of rapeseed siliques was obtained afterapplication of Polifoska 8, than other fertilizers. Rapeseed grown on soil with the fertilizersmanufactured in Belarus showed a lower value of greenness index (SPAD) and leaf area index(LAI). As a result of the application of multi-component fertilizers, manufactured in Belarus,Russia and Poland, the recorded differences in the winter rapeseed yield, yield components andphysiological parameters did not exceed 10%.