In the conditions of chernozem soils of the Left-Bank Forest-Steppe of Ukraine, the use of mineral and organic fertilizer systems provides an increase in the yield of sweet potatoes by 34–56 %. The maximum yield level (24.3 t / ha) is indicated by applying N370P370K450 with foliar fertilization with a complex fertilizer "Nutrivant plus universal". Positive effect on the content in the tubers of sweet potato dry matter (18.6 %) and starch (9.06 %), reducing the content of nitrates leads to the use of organic fertilizers in combination with microbial preparations. The use of mineral fertilizer systems causes high rates of consumption of basic nutrients by sweet potatoes (nitrogen - 246.3 kg / ha, phosphorus - 201.1 kg / ha, potassium - 683.2 kg / ha).
sweet potato, fertilizers, nutrients, soil nutrient composition, dry matter