Peculiarities of the confectionery sunflower cultivation technology in the Eastern Forest-Steppe of Ukraine

Purpose. To evaluate the effects of plant density and fertilizer dose on yield thousand seed weight in F1 confectionary sunflower hybrids. Methods. Field, laboratory mathematical statistical methods were used. Results. The average confectionery hybrids grown at a 28,600 plants/ha exceeded their 20,400 by 0.01–0.43 t/ha, depending study year dose. that 6.0–14.8 g. greatest increase was achieved when fertilizers applied N45P45K45: +0.21 t/ha +6.5 g to control (without fertilizers), respectively, plants/ha; +0.18 +5.4 control, plants/ ha. maximum produced hybrid Forsazh: 3.97 (2016, ha, N45P45K45). Confectionery Hudvin Nasoloda had values weight: 123.0 121.2 g, respectively (2018, plants/ha, N45P45K45), which check large-fruited variety 7.2 5.4 respectively. In dry (2017), higher than 95.6 wet (2020), Nasoloda, even 57,100 amounted 88.6–92.5 Conclusions. are significantly influenced density, weather conditions during growing period. highest recorded (at plants/ha) 123 plants/ha), ensured high yields high-quality seeds Eastern Forest-Steppe Ukraine.