Abstract
The relevance of the study is due to the great needs of growing high-quality planting material in a short time for forestry reclamation on disturbed lands both during oil and gas exploration and during oil and gas production. The paper presents the results of studies of germination energy, germination and growth dynamics of Pinus sylvestris L. seedlings grown in RKL-81 cassettes in a greenhouse in 2022 and 2023. At the same time, the renewal of forests is possible after the technical and biological stages of recultivation when creating forest crops from indigenous forestforming species. In 2022 and 2023, experiments were conducted on different types of peat-based substrate, differing in density, nutrient content and additional components from a complex of humic acids and salts, mineral fertilizers, trace elements, strains of friendly soil microflora and mycorrhiza. Pre-sowing seed treatment and agrophysical properties of substrates affected the energy of seed germination and germination, as well as an increase in the total number of germinated seeds during the first month. Good germination results were obtained in 2022 with pre-sowing seed treatment with Borogum-M, Rich-Micro, Bionex-Kemi preparations in low-density peat, filled with the starting composition of fertilizers. However, the biometric indicators of seedlings were slightly higher on the substrate with the addition of humic acids and salts, mineral fertilizers, trace elements, strains of soil microflora and mycorrhiza. In 2023, agroperlite was added to one of the peat substrates to reduce density and increase porosity. The germination energy, germination rate and dynamics of the emergence of seedlings on this substrate turned out to be the highest (from 93 to 100%). It is proposed to grow pine seedlings during one growing season on low-density peat with the addition of agroperlite and a complex of mineral and organic components, including soil microflora and mycorrhiza. This will speed up the process of obtaining the planting material of scots pine for forestry reclamation on disturbed lands both during oil and gas exploration and during oil and gas production.
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