FIELD: agriculture.SUBSTANCE: group of inventions relates to agriculture. Agricultural seeding section comprises a seeding section frame, a furrow cutting disc supported by the seeding section of the seeding section to cut the furrow in the soil surface, as the seeding section frame advances in the forward direction, the depth adjustment unit. Next to said disc, a cutting wheel is arranged to cut the furrow and rotatable from said frame of the seeding section by means of a guide wheel lever such that the said replacing wheel can displace relative to the said disc for slicing the furrow. Depth adjustment unit comprises depth control element connected with possibility of rotation through axis of rotation with specified seeding section frame； gear rack arranged on seeding section frame； reduction gear connected to said depth control element. Reduction gear engages said gear to said gear to adjust the position of depth control element to control depth of furrow cut by disc to cut furrow by limiting upward displacement of said drive wheel relative to cutter of furrow. Agricultural seeding section comprises a seeding section frame configured to cut a furrow having a furrow depth, depth adjustment lever passing through said sowing section from rear part of said sowing section to front part of said sowing section along direction of movement of said sowing section. Depth adjustment lever has a screw receiver located on said depth adjustment lever on rear part of said seeding section； screw located in said screw receiver and through said rear part of said seeding section； rocker located on said depth adjustment lever in front of said seeding section and acting on levers of guide wheel to adjust depth of furrow； depth adjustment unit connected to said screw opposite said screw receiver. Depth adjustment unit comprises an electric motor which drives the reduction gear by turning the shaft connected to the above screw.EFFECT: ensuring proper depth of inoculation.20 cl, 45 dwgГру
