In a foothill zone of Kabardino-Balkar Republic in 2018-2020 researches on identification of the most effective preparations on crops of sunflower were conducted. As objects of research sunflower hybrids Donskoy 22 F1 served. Donskoy 342 and EU Muse. https://www.kaliboat.com/product-category/pump-accessorieshydraulic-pumps/