The article presents the results of field testing of three doses of dehydrated urban sludge in geotubes as organic fertilizer. The results showed that the administration of urban sludge in three doses, equivalent to N170, N340 and N680 kg/ha, favored the increase of the content of organic matter, mineral nitrogen, mobile phosphorus and exchangeable potassium in the arable soil layer. The increase compared to the control variant was in the content of humus - from 0.17 to 0.32%, mobile phosphorus - from 1.24 to 4.16 and exchangeable potassium - 4.0-5.0 mg/100 g sol. The applied sludge improved the state of soil settlement, led to an increase in the content of valuable agronomic structural elements and the structuring coefficient. The application of urban sludge in the mentioned doses ensured a specific harvest increase of 118.2-60.9 - 53.8 kg/t, increased the gluten content by 1.85-3.15% in the winter wheat grains and gross fat by 2.9-3.1% in sunflower seeds.