Dependence of productivity of white lupine seeds on the foliar dressing with macro- and micronutrient fertilizers

Abstract The paper presents the results of studies on determination effect foliar dressings with macro- and micronutrient fertilizers linear growth, mass air-dry matter plants, leaf surface, formation a symbiotic apparatus yield seeds white lupine (Lupinualbus L.) in conditions black soils Central Black Earth region Russian Federation. field experiments were carried out 2018-2020 at Department Crop production, Breeding Horticulture Belgorod State Agrarian University. object research is high-intensity variety Degas lupine. subject microfertilizer Aquamix-TV, potassium sulfate fertilizer (K 2 SO 4 ), phosphate-potassium monophosphate (KH PO ). weather during years was hot dry. During critical periods development moisture deficit observed excess heat. soil cover experimental site represented by typical medium-thick low-humus heavy loamy granulometric composition. accounting area plot 18 m , replication fourfold placement systematic. experiment included six variants: control (without fertilizers), dressing Aquamix-TV fertilizer, solution, + mixture potassium. analysis obtained data showed that highest Dega variants combination monopotassium phosphate, which amounted to 3.52 3.51 t / ha, respectively, 0.52 0.51 ha or 17.3 17.1% more than variant.