The claimed utility model relates to agricultural machinery, particularly to a three-row rotary guns intended for the surface treatment of soil. The technical result of the claimed utility model is to improve the quality of the three-row disk harrow. The technical result is achieved in that the three-row disc harrow, comprising a frame with crossbeams, by means of which individual racks arranged spherical discs, wherein the first row are installed on left- and right wrapping disc working elements, mirror, vrazval disposed about the longitudinal axis, and third row discs concavity opposite the concavity of the discs of the second row, wherein closest to the longitudinal axis drives the second and third rows of concavities directed towards this axis, each row discs provided with a mechanism synchronous adjustment discs angle of attack, comprising an adjusting bar, which is rigidly connected to pivot strap discs in the series, according to the utility model extreme disk of the third row on the boundary processing is equipped with a mechanism independent discrete adjustment of angle of attack (PDR) consisting of a lead, one end coupled with the adjustment strap synchronous attack angle adjusting mechanism drive, and the other - with a strap turning extreme disk wherein the leash comprises a hole at one end for attachment to the adjustment bracket and at the other end - the group of holes for the possibility of a discrete adjustment of the angle of attack. Thus wheels in each row are set the working surface at an angle of attack to increase from the first to the third row. 1 bp ZP 1, 5 Fig.Заявляемая полезная модель относится к сельскохозяйственному машиностроению, в частности к трехрядным дисковым орудиям, предназначенным для поверхностной обработки почвы. Техническим результатом заявляемой полезной модели является повышение качества работы бороны дисковой трехрядной. Технический результат достигается тем, что в бороне дисковой трехрядной, содержащей раму с поперечными
