The seed drill has two lateral implement carrier bars (4, 5) which are located on both sides of a middle implement carrier bar (2) and which can lengthen the middle bar or be raised above it. Each lateral bar is connected to the frame of the seed drill via an inclined arm (18), with which it is in one piece, and to an articulated rod (20). Furthermore, it is mounted pivotably on a rod (12) articulated on the middle bar (2) and is continued outwards for the purpose of holding a furrow marker (24, 25). A rope (28) connects the inclined arm to the furrow marker which folds away downwards automatically when it is erected relative to the rod (12) and when the lateral bar is raised.
