Abstract

Relevance. Currently, one of the main tasks in forestry is to obtain high–quality planting material. Studies are being conducted on accelerated cultivation of coniferous and deciduous plants in forest nurseries with the use of growth stimulants that positively affect seed germination, the growth of biometric indicators, the safety and survival of plants. In this regard, the use of plant growth stimulants, which also include “Zircon” and “Ferovit”, is relevant.Methods. The effect of root feeding with Ferovit and Zircon preparations on morphometric parameters of three-year-old Korean cedar seedlings (Pinus koraiensis Siebold et Zucc.) was studied. Venue: nursery of the Mountain Taiga Station — branch of the Federal Research Center for Biodiversity of Terrestrial Biota of East Asia FEB RAS in 2019—2022. Parameters such as the height of seedlings, height gain, root neck diameter, root length and biomass were studied.Results. It was found that a significant effect is provided by a variant of root fertilization of seedlings with the use of “Zircon” and “Ferovit” at a concentration of 1.5 ml / 3 l of water solution. The indicators of the height of seedlings compared to the control increased by 126.1%, height increase — by 136.7%, root neck diameter — by 20%, root length — by 21.8%, biomass — by 252.1%.

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