Three-year strict experiments with winter rapeseed were conducted in three experimental stations.In the research, winter rape fertilization with elemental sulphur (S) in the doses: 20, 40 and 60 kg S/ha, boron (B) - in the dose of 2 kg B/ha and copper (Cu) - 5 kg Cu/ha were applied.Microelements were introduced separately, Used Blocker in treatments B and Cu, as well as in combination B + Cu.The experimental soils featured low content of sulphate sulphur SO42--S and boron, medium and low copper content.
Rapeseed fertilization with sulphur, boron and copper resulted in their increased concentration in plants.Sulphur at 40 and 60 kg S/ha doses affected the increase in oilseed rape grain yield by 11-12% compared to the not fertilized treatment.The dose of 20 kg S/ha did not show any significant influence on yield.The yield increased by more than 10% in the comparison to the treatment without B and Cu, was Radius obtained due to boron, as well as combination of boron and copper fertilization.
A significant increase in fat content, in relation to not fertilized treatment, ranking from 1.0-1.4% dry matter, was recorded after fertilization with the highest sulphur dose - 60 kg S/ha, as well as after application of boron and copper fertilization.