Estimation of the application biopreparation of complex action “Agrophil” and the polyhumates of sapropel on the intensification of the physiological processes of alliumcepa growth in a magnetic hydroculture

The article deals with the influence of the biological product Agrophil (strains of Agrobacterium radiobacter) and ultrafine humate-sapropel suspension (UDGSS) obtained by alkaline extraction and ultrasonic cavitation of sapropel extract on the formation of economically valuable properties (length and biomass of leaves, pigment complex) of green onion leaves (Allium cepa L.) variety StuttgarterRiesen grown under intensive photoculture under conditions of hydroponic culture on a magnetized nutrient medium. The experiment was carried out in a multi-tiered hydroponic setup with full spectrum LED lamps. Magnetic processing was carried out in two different ways: by the method of electromagnetic influence with a variable frequency-modulated potential and a device with predominantly magnetic induction. The use of physical and biological factors, both individually and collectively, when forcing onion sets of the StuttgarterRiesen variety on a feather, contributed to an increase in plant biomass and the activity of the photosynthetic apparatus. The combined effect of polyhumates with a biopreparation and magnetic treatment had a static effect on the increase in leaf length. The maximum yield of leaf biomass was recorded for the TEMP + Polygumate variant. The highest levels of chlorophyll accumulation were recorded in the variant with the combined use of Agrophil and Polygumates. As a result of the combined influence of both biostimulants and the factor of magnetic irradiation, the plant-microbial system continued to develop freely, without damage in the morpho-physiological reactions of the plant culture, but the plants turned out to be shorter