Weeds in agrocenoses and grain products of the Kemerovo region

The paper presents the results of a study of the segetal flora of the Kemerovo Region. The purpose of research: to study the species composition of weeds in agricultural crops of the Kemerovo Region, as well as the possibility of distributing weed seeds with regulated products grown in Kuzbass. Tasks: analysis of the species composition of weeds in the agrocenoses of the Kemerovo Region; study of the species composition of weeds that clog grain products grown in the farms of the Kemerovo Region. Objects of study: geobotanical descriptions made in agrocenoses of 8 types of agricultural crops on the territory of 4 administrative districts of Kuzbass in 2021, as well as the results of herbological examinations of 248 samples of grain products (oats, buckwheat, rapeseed) grown in 2019-2021 in the Kemerovo Region and received by the Tomsk branch of the All-Russian Center for Plant Quarantine (FSBI VNIIKR) for examination within the framework of the federal project Export of Agricultural Products. In the agrocenoses of the Kemerovo Region, 72 species of vascular plants belonging to 58 genera from 23 families were identified. Of these, 22 species are found in the studied agrocenoses most often and with high abundance. The occurrence above 50 % is typical for 8 weed species: Avena fatua, Chenopodium album, Echinochloa crus-galli, Fallopia convolvulus, Galeopsis bifida, Galium vaillantii, Linaria vulgaris, Setaria viridis. Fruits and seeds of 46 species of weeds were found in grain products, some of which are quite rare in the crops of the Kemerovo Region (Buglossoides arvensis, Centaurea cyanus, Centaurea scabiosa, Corispermum declinatum, Knautia arvensis, Sphallerocarpus gracilis, Stachys annua). 53 species of weeds that infest agrocenoses and grain products are included in the lists of regulated pests in 27 importing countries of Russian agricultural products.