INFLUENCE OF SOYBEAN CULTIVATION TECHNOLOGY ON THE STATE OF SOYBEAN AGROPHYTOCENOSIS IN THE AMUR REGION

The research findings of two-year studies on the effect of soybean direct seeding at different seeding rates in the Amur Region on the quantitative and weight composition of agrophytocenosis are discussed. Soybean cultivation under direct seeding technology does not have an equivalent effect on weed infestation of the crops. According to the findings of most studies, the use of this technology leads to deterioration of the state of agrophytocenosis. However, some findings show that this soybean growing technology decreases weed infestation of the crops. Therefore, the research goal was to study the effect of soybean direct seeding on weed infestation of soybean crops in the Amur Region. The research was conducted in 2022 and 2023 on the farm KFKh “Serdyukov A.N.” in maize and soybean crop rotation as a two-factor field experiment. Factor A was tillage before seeding, and factor B was the seeding rate. The grading of factor A included direct seeding and seeding with preliminary tillage. The grading of factor B included 400, 500, 600, 700 thousand germinable seeds per ha. The research findings showed that the use of direct seeding technology in the Amur Region ensured the largest percentage of soybeans in the agrophytocenosis. The technology of soybean cultivation when seeding into tilled soil and by direct seeding with a rate of 600 and 700 thousand seeds per ha reduces weed infestation.