COMBINED SINGLE-DISK SHANK Russian patent published in 2004 - IPC

FIELD: agricultural engineering, in particular, seeding machines. SUBSTANCE: shank has disk mounted in vertical position on bracket at an angle to machine advancement direction so that draft direction coincides with shank advancement direction. Restricting flange on disk outer surface is made in the form of half of ellipsoid of rotation attached to disk by means of detachable members. Seed guide and fertilizer guide are arranged behind bracket and devices for covering seeds with moistened soil layer and for covering of fertilizer are arranged between seed guide and fertilizer, so that soil layer is provided between seeds and fertilizer with different extent of soil thickness covered by shank. Such construction allows uniform depth of soil to be passed by shank and prevents shank from wrapping with plant remains. EFFECT: combined seed sowing and fertilizer applying processes, provision for separating seeds and fertilizers by soil layer and covering of seeds with soil layer without carrying out of lower soil layers onto surface. 4 cl, 3 dwg