Shatsman D. Agroecological assessment of herbicides using in the technology of corn growing оn chernozem typical

The thesis presents the results of an agroecological assessment of the growing corn technology for grain in permanent sowing with soil (Harnes, е.c.; Stomp 330, e.с.) and insurance (Callisto 480 SC, KС; Milagro 040 SC k.с.; Dianate, WRC; Esteron 60, e.с.) herbicides. The plant protection system with minimal negative impact on agrocenosis and soil has been determined. The features of the formation of weed phytocenosis from permanent corn cultivation in the conditions of the Left Bank Forest Steppe were studied and the technical effectiveness of herbicides and also their effect on the corn yield was established. Effective weed control under various weather conditions is ensured by the application of the herbicide Harnes, e.с. (2.0 l/ha) supplemented with insurance herbicide Milagro 040 SC k.с. (1.0 l/ha) and Callisto 480 SC, КC (0.2 l/ha), which makes it possible to obtain yield of corn grain of 8.17–11.71 and 7.76–11.37 t/ha with a protein content of 10.1–10.2%. The content and rate of detoxification of herbicides in the soil and corn plants were studied and their degree of danger was determined. The features of the functioning of chernozem typical microbiocenoses by the number of microorganisms of the main ecological and trophic groups, the orientation and activity of the main biochemical processes and the content of total microbial biomass were determined.