A three-point tractor coupling and deep fertilizing attachment with a PTO shaft and a universal joint coupling has a coupling and a deep fertilizer coupling, the deep fertilizer coupling having a double helical screw (8), which by its shape allows the exact amount of fertilizer to be dosed, wherein the double helical worm (8) is driven by an electric motor (12) controlled by a control device (18), which is also the driver of the electric motor (12).Traktorski priključek za rahljanje in globinsko dognojevanje s tritočkovnim traktorskim priključkom in priključkom za kardansko gred ima sklop za rahljanje in sklop za globinsko dognojevanje, pri čemer sklop za globinsko dognojevanje obsega dvojni spiralni polž (8), ki s svojo obliko omogoča doziranje natančne količine gnojila, pri čemer je dvojni spiralni polž (8) gnan z elektromotorjem (12), ki ga krmili krmilna naprava (18), ki je hkrati tudi gonilnik elektromotorja (12).
