Ecological Systems and Devices Annotation << Back Assessment of Nutrient Intake With Sediments on Arable Lands of the Floodplain Agricultural Landscape Ilinskiy A.V., Evsenkin K.N., Pavlov A.A. During the fl ood period, reclaimed agricultural lands in the central part of the Oka River fl oodplain in the Ryazan region are abundantly enriched with organic matter, macro- and microelements. Failure to comply with scientifi cally based technologies for the use of fl oodplain reclaimed lands and the lack of crop rotation on them can lead to a decrease in their fertility and productivity, and, as a consequence, to a deterioration of the ecological situation in the agricultural landscape. Based on the results of scientifi c research, the magnitude of the sediment load was established, the agrochemical properties of fl ood sediments and underlying alluvial soil were studied, the structure of the entry of organic matter, total nitrogen, total phosphorus, total potassium into the agricultural landscape with fl ood sediments and their removal with the corn harvest for silage under annual conditions was analyzed. monoculture cultivation. Flood sediments have a direct impact on the processes of soil formation in alluvial soil of the agricultural landscape: at a sediment load level of 15.8 t/ha, the following enters the soil with sediment: total nitrogen – 1.1 c/ha, total phosphorus - 0.85 c/ha, total potassium – 0.96 c/ha, organic matter – 10.1 c/ha. With a relatively low yield of corn for silage (275 c/ha), the removal of nutrients is: for total nitrogen – 81 kg/ha, for available phosphorus – 28 kg/ha, for exchangeable potassium – 83 kg/ha. The supply of nutrients to the soil with fl ood sediments is periodic and may be completely absent in years of low fl ood water levels. When calculating the doses of fertilizers planned for application, it is recommended to take into account the amount of nutrients received with fl ood sediments and their removal with the planned harvest. Keywords: agricultural landscape, agrochemical indicators, alluvial soil, soil degradation, fl ood sediments, fertility, supply of elements, soil ecoprotector, fertilizing effect, environmental safety. DOI: 10.25791/esip.2.2024.1430 Pp. 24-31.