Abstract. This paper describes the results of the study of the Mokhovsky coal mine undisturbed soils in different horizons of the soil profile. The study was conducted on the Sartakinskoe, Mokhovskoe and Karakanskoe fields. In each field the authors have determined the species composition of phytocenoses and soil types, and studied soil horizons and agrochemical characteristics (particle size and soil composition, humus content, hydrogen index, nutrient content, hydrolytic acidity, the amount of absorbed bases, absorption capacity, etc.). It has been established that the vegetation of the phytocenoses of the studied fields is represented by birch tree trunks with the inclusion of pine, sections of meadow and small fragments of steppe communities, where perennial herbaceous plants play a significant role, which is typical for temperate floras of the northern hemisphere. The results of the analysis of the structural and particle size distribution of the agrochemical characteristics of undisturbed soils in the Mokhovskoe, Sartakinskoe and Karakanskoe fields of the Mokhovsky coal mine indicate that these soils are of agronomic value, therefore it is recommended to remove and store the fertile layer from these sites with a view to their further use in biological reclamation to increase quality, productivity and environmental value of the restored lands in the Kemerovo Region. The fertile soil layer (PRP) and the potentially fertile soil layer (PRSP) from the Mokhovskoye field is recommended for forestry while the Sartakinskoe and Karakanskoe fields for agricultural restoration.

This paper deals with the study of the phytoremediation potential of flowering plants in relation to lead ions under laboratory conditions. The test cultures were phacelia tansy (Phacelia tanacetifolia Benth.), white mustard (Sinapis alba L.), small-flowered marigolds (Tagеtes patula L.) and a mixture of cereal grasses consisting of red fescue 40% (Festuca rubra L.), perennial ryegrass 50% (Lolium perenne L.) and meadow bluegrass 10% (Poa pratensis L.). Under the experimental conditions lead ions in concentrations of 2 and 10 MPC were introduced into the soil sampled from the territory of agricultural lands (leached medium-thick heavy loamy chernozem with a high content of humus, mobile phosphorus and exchangeable potassium, low content of nitrate nitrogen, bulk and mobile forms of lead). It has been established that all representatives of weeds, ornamental and green manure plants selected as test crops are capable, to one degree or another, of accumulating lead ions from soils and therefore can function as phytoremediators of agricultural lands intended for organic farming. The ability to accumulate lead ions increases in the following order: phacelia marigolds mustard a mixture of cereal grasses. The maximum effect of phytoremediation of the soil was revealed in the variant with a cereal mixture (the content of lead ions in the soil with the introduction of 2 MPC decreases by 32,8%, with the introduction of 10 MPC by 23,6%).

The article presents the data from a study of the dynamics of Currant bud mite in a seed-field "Flora-Garden" LLC in Kemerovo for 2018-2019 and describes the influence of metabolic products of Streptomyces avermectilis contained in the biological preparation Fitoverm on its characteristics. Two-year-old seedlings of blackcurrant (Ribes nigrum L.) variety Ilya Muromets with a closed-root system were used as planting material. The plants were treated during the gemmation period at the end of the first May decade with the hand sprayer "ORION-6", the flow rate was 500 l/ha. The phytophage mass output was observed during the ovary formation in the third May decade in 2018 and in the second May decade in 2019. It was found that the metabolic products of Streptomyces avermectilis reduced the Currant bud mite yields during the studied period by 1.5 times, as well as influenced the phytophage population dynamics, which became uniform without peaks of mass output.

This paper describes the results of studying the phytoremediation potential of flowering plants in relation to copper ions in laboratory experiment conditions. The test crops were tansy-leaved phacelia, white mustard, small-flowered marigolds and a mixture of grasses consisting of red fescue, pasture ryegrass and meadow bluegrass in a ratio of 40%, 50%, 10% respectively. Under experimental conditions copper ions in concentrations of 2 and 10 MPC were introduced into the soil selected from the territory of agricultural lands (leached medium-sized heavy loamy chernozem with a high content of humus, mobile phosphorus and exchangeable potassium and a low content of nitrate nitrogen, gross and mobile forms of copper). It has been found that all the selected crops accumulated copper ions from the soil to varying degrees, which makes them suitable for phytoremediation of agricultural lands planned for organic farming. The ability to accumulate copper ions increases in a row: white mustard small-flowered marigolds tansy-leaved phacelia a mixture of grasses. The maximum effect of phytoremediation of the soil in relation to copper ions has been revealed in the variant with a cereal mixture: the content of copper ions in the soil decreases by 38,8% when applying 2 MPC, by 47,8% when applying 10 MPC.

Heavy metals such as cadmium, chromium, nickel, mercury, lead, copper, zinc and others are among the priority environmental pollutants. Determination of their content in its main subsystems is an obligatory component in environmental monitoring and certification of agricultural products. On the other hand, all metals are natural components of soil-forming rocks, and some metals are classified as biogenic microelements, and their absence provokes functional disorders in living organisms. This article describes the results of studying the phytoremediation potential of flowering plants in relation to copper ions under laboratory conditions. The following flowering plants were selected as test crops: tansy phacelia, white mustard, small-flowered marigolds and a mixture of cereal grasses consisting of red fescue, perennial ryegrass and bluegrass in a ratio of 40%, 50%, 10%, respectively. Within the experiment, copper ions in concentrations of 2 and 10 maximum permissible concentration (MPC) were introduced into the soil sampled from the territory of agricultural lands (leached medium-thick heavy loamy chernozem with a high level of humus, mobile phosphorus and exchangeable potassium and a low level of nitrate nitrogen, copper in gross and mobile forms). It was found that all plants selected as test crops are capable of accumulating copper ions from the soil to varying degrees, which makes it possible to use them in phytoremediation of agricultural lands planned for organic farming. The ability to accumulate copper ions increases in the following order: white mustard < small-flowered marigolds < tansy phacelia < mixture of cereal grasses. The maximum effect of soil phytoremediation was revealed in the variant with a mixture of cereal grasses. When they are grown, the content of copper ions in the soil with the introduction of 2 MPC decreases by 38.8%, with the introduction of 10 MPC the concentration decreases by 47.8%.