COMBINED SEEDER

摘要

The invention relates to agricultural machinery, in particular, to combined seeders to be used for simultaneous surface soil tillage and subsurface differential fertilyzer application. The technical inventive result is aimed at providing improvement of operation effectiveness and reliability of a combined seeder during presowing soil tillage and also during fallow land treatment with simultaneous fertilyzer application, characterized in that a scarifier 10 is made in the form of conical springs combined with bases freely sliding along a shaft 9 and tops of the conical springs are rigidly fixed on the shaft 9 of the scanifier 10, a slide gate 16 is positioned at an angle 30-35° to the vertical axis and rigidly connected to a linear actuator 17, wherein seeding units comprise a coil 11, joint pins 13 of which are made in the form of tetrahedral truncated pyramids with angles of side surfaces inclination to the coil generator and to the vertical axis within 40-45°, arranged on crossing right and left multiple screw lines and adapted to rotation around their axes.