In the article, the formation and evolution of agricultural irrigated layers in irrigated areas under the influence of irrigated agriculture, its physical and chemical, mechanical and biological properties, the composition of irrigation water and the degree of turbidity depending on the climate and relief, and the change of these agro-irrigation layers are analyzed on the example of the soils formed in the cones of the Shakhimardansay, Isfayramsay, Sokh rivers. Among the Shakhimardansay, Isfayramsay, Sokh rivers, the Sokh river is the leader in the amount of turbidity (199.4 g/m3 ). In the formation of old irrigated compacted soils on the alluvial-prolluvial deposits in the conic expansions of the rivers, river sediments play a role of genesis to a certain extent and form agro-irrigation layers of various thicknesses.