The efficiency of fertilisation in the cultivation of high oleic sunflower on typical low humus chernozems

The cultivation of high oleic sunflower hybrids is very promising as highly competitive on the international market and has a growing demand for oil main product its processing. Despite significance one Ukraine's traditional crops, technology still many unresolved issues. Among elements aimed at increasing crop yields, research with high-oleic particular importance, it requires studying level mineral nutrition need sulfur application, considering their impact acid content. purpose study to determine effect different rates fertilisers formation productivity plants typical low-humus chernozems Right-Bank Forest-Steppe Ukraine. programme envisaged establishment field trial in 2015-2017. was conducted form two-factor experiment. experimental program provides following factors: factor A – fertiliser application rates, B application. using generally accepted methods scientific production. revealed that maximum amount dry matter accumulated variants introduction N90R75K135+S30 N120R100K180+S30. addition increases yield from 5.69% 9.27%. highest seeds formed by applying -4.12 t/ha. further increase rate does not lead significant yield. S30 combination N90R75K135 allows 0.35 t/ha or 9.28%. correlation regression analysis obtained results shows close between accumulation mass BBCH55-57 BBCH 65-67 (respectively r = 0.917 0.972). fat content (49.7%) (88.5%) (2.05 t/ha) provided ES Romantic hybrid