Intensification of cultivation of Pinus sylvestris L. seedlings with a closed root system in the Southern Urals

Abstract

The article presents the results of research on growing seedlings of Pinus sylvestris L. with a closed root system in a greenhouse when sowing in cassettes, on three types of substrates and 7 variants of presowing treatment with various growth stimulants, which affected the energy of seed germination and germination, and also on increasing the total number of germinated seeds during the first month. Good germination results were obtained when seeds were treated with Borogum-M, Bogatyi-Micro, Bionex-Kemi preparations in low-density peat, filled with the starting composition of fertilizers. But in the subsequent period, the development of seedlings was more intense on denser peat with the addition of humic acids and salts, mineral fertilizers, trace elements, strains of soil microflora and mycorrhiza. Biometric indicators of seedlings also turned out to be slightly higher on this substrate. It is proposed to grow pine seedlings during one growing season on low-density peat with the addition of a complex of components.