Prospects for the use of biopreparations based on VAM during growing cucumber in protected ground

The research was carried out in 2022-2023 by the USPC of Horticulture and Vegetable Growing named after V.I. Edelstein RSAU-MAA named after K.A. Timiryazev (Moscow). In the conditions of a film ground greenhouse and planting during the spring-summer rotation, experiments were carried out to assess the effect of biological preparations based on vesicular-arbuscular mycorrhiza (VAM) on the growth and productivity of cucumber plants (Cucumis sativus L). Studies have shown that the use of biological preparations positively affected the vegetative growth of Cucumis sativus L plants of the parthenocarpic early-maturing hybrid F1 SV4097CV, which affected the photosynthetic surface area, and also significantly affected the development of plants, accelerating the passage of the main phenophases. There was an increase in plant yield and production at an earlier date, which is extremely important when growing plants in protected soil conditions during the transition to organic agriculture