The influence of microbiological fertilizers on the cultivation of small-leaved linden in the conditions of the southern forest-steppe of the Omsk region

Small-leaved linden in the conditions of the southern forest-steppe of the Omsk region is not the main forest-forming species. Despite the unique properties of this tree, such as improving soil fertility, nectar-bearing, decorative, using it to create sustainable forest biocenoses and protective plantations, this tree species is not grown in sufficient quantities in the forest nurseries of the Omsk region. Natural linden forests have very small areas, so the prospects for creating artificial linden plantations are obvious. The first step in solving this problem is the cultivation of planting material. The purpose of this study is to improve the technology of growing small-leaved linden seedlings. The results of experiments on the use of microbiological preparations in the cultivation of small-leaved linden seedlings with a closed root system are presented. Their influence on the height, diameter of the root neck, root system of seedlings is shown. The highest efficiency of the microbiological fertilizer Azolen, which affects the growth and development parameters of two-year-old, four-year-old and five-year-old small-leaved linden seedlings, has been established. Five-year-old linden seedlings with a closed root system successfully developed under the influence of Black Yeast and Trichodermin preparations, since they are based on the soil fungus Trihoderma viride and yeast-like microorganisms Exophiala Nigrum , which are able to create symbiotic associations with plants and have the ability to reproduce themselves.