Abstract
Bear garlic (<i>Allium ursinum</i> L.) and its value for human health have been known for centuries. Its leaves, flowers, and bulbs contain many health-promoting compounds, and can be essential raw materials for the production of food and dietary supplements of natural origin. The purpose of the study was to evaluate the possibility of growing bear garlic in field conditions that differed significantly from those required by this plant, using unconventional treatments: catch crops (phacelia), shade plant (turnip rape), and biopreparations (Bio-Algeen S90 and Kelpak SL). The plowing of phacelia biomass had a beneficial effect on the number of <i>A. ursinum</i> progeny bulbs, the unit weight of bulbs and their yield per unit area, and the leaf yield not only in the first year of cultivation but also in the follow-up. Winter turnip rape applied as a shade crop caused a slight increase in the unit weight of bulbs and their yield in the first and second years of cultivation and in the number of progeny bulbs in the second and third years of cultivation. The cultivation of <i>A. ursinum</i> with turnip rape increased the percentage of garlic root weight and leaf yield. There was a positive effect of the applied biopreparations on the studied traits of <i>A. ursinum</i> bulb yield and leaf yield and on the formation of progeny bulbs in relation to the control object. The analysis of the interaction of the factors of the experiment showed that the combination with the application of the phacelia catch crop and the simultaneous cultivation of the shade crop had the most favorable effect on <i>A. ursinum</i> progeny bulb formation, bulb unit weight, root system development, and leaf yield. In all years of the study, the worst effect was obtained in the control object, i.e., in the cultivation without the catch crop, rapeseed, and application of biopreparations.