Sowing machine (10) that comprises a number of loosening means (18) each of which provided with a point (18a) directed downward in a working position and foldably and/or vertically adjustably mounted on at least one frame part (23) of a first implement section (S1) of the agricultural machine (10), wherein the entire implement section (S1), including all loosening means (18) mounted in the section, is arranged to assume at least two different lateral positions (A, B) relative to a sowing section as well as provided with a lock member to be locked to either one (A) or the other (B) of said lateral positions (A, B).