Efficiency of the applied elements of the technology of growing sunflower of confectionery direction

Abstract

The article presents the results of studies on the effectiveness of growing confectionery sunflower in the moderately arid conditions of the northern steppe of Ukraine. The features of the formation of the yield and quality of seeds of modern varieties and a hybrid of sunflower of the confectionery direction, depending on the elements of the technology of their cultivation, namely on the variety, the method of the main tillage, the background of nutrition and the density of sowing, have been established. The most favorable conditions for the formation of high yields were formed during the main moldboard tillage. Depending on the dose of fertilizers and the sowing scheme, the yield was 1.88-3.04 t/ha for the SPK variety, 1.72-3.03 t/ha for the Belochka variety, and 1.96-3 for the Zaporozhye confectionery variety 14 t/ha, for the Goodwin hybrid – 1.50-2.68 t/ha. The highest yield of the variety Zaporozhskiy konditerskiy – 3.14 t/ha – was obtained when growing on a dump system of tillage, fertilizing at a dose of N60P80K80 and for a sowing density of 40.8 thousand plants/1 ha. The highest net profit – 37051.30 UAH/ha (profitability – 264.25 %) from the use of mineral fertilizers with a dose of N60P80K80 was obtained for the Belochka variety for a planting density of 40.8 thousand plants/1 ha with non-moldboard tillage. But a great profitability (372 %) was obtained for the Goodwin variety during moldboard tillage using mineral fertilizers N20P40K40 and for a planting density of 40.8 thousand plants/1 ha. At the same time, the profit amounted to 29693.32 UAH/ha, and total expenses – 7985.65 UAH/ha.