The aim of the research was to analyze the degree of infection of winter wheat by fungal diseases and to evaluate the morphological and physiological parameters of plants depending on varied foliar fertilization (with and without the ionic form of silver) and applied plant protection agents (active ingredients: propiconazole, fenpropidin, azoxystrobin) in the 2016/2017, 2017/2018 and 2018/2019 growing seasons. The results showed that micronutrient fertilizers with silver and pesticides reduced the severity of fungal diseases better than the control. In most cases, foliar fertilizers enriched with the ionic form of silver at a dose of 1 and 2 l · ha ⁻¹ were the most effective. Moreover, foliar fertilization and pesticides had a positive effect on the morphology of wheat. Combined treatment (micronutrient fertilizer with silver and pesticide at a dose of 1 l · ha ⁻¹) increased stalk length and weight, ear weight and thousand grain weight to the greatest extent in comparison to the other treatments, while the pesticides stimulated ear length the most. In turn, microelement fertilizers with silver at a dose of 1 and 2 l · ha ⁻¹ were better in terms of flag leaf length. Wheat treated with foliar fertilizer and pesticide significantly improved the chlorophyll content based on the leaf greenness index (SPAD). It was found that the foliar application of microelements with silver is promising for use in agriculture because they controlled fungal diseases and ensured the good condition of plants more effectively than pesticides harmful to the environment.

The aim of the studies was to evaluate the influence of sowing rate, foliar fertilization (Basfoliar fertilizer 6-12-6) and chemical composition on the mechanical properties of narrow- leaved lupine seeds of cultivars Bojar and Regent. Single seeds were burdened in the direction perpendicular to the parting plane of cotyledons with constant speed 10 mm∙min-1. The crop year and cultivar have significantly differentiated the value of all the analyzed strength parameters of narrow-leaved lupine seeds. The seeds of cultivar Bojar had significantly higher values of all the strength parameters. The designated strength parameters of lupine seeds were negatively correlated with ash content, fiber and protein except for the destructive force. They were also positively correlated with the fat content.