Combined chisel plow, rod weeder and drill

In combination with a seeder of the type including a main frame supporting a plurality of laterally spaced rear seeder units and equipped with a forwardly projecting hitch assembly including dependingly supported ground engaging wheel means, said hitch assembly including forward hitch means for coupling to the rear of a tractor and mounting frame means intermediate the hitch means and the rear portion of said hitch assembly, a pair of generally aligned, axially spaced and transversely extending opposite side tool bars disposed on opposite sides of said ground wheel means, a pair of laterally spaced upstanding guide and support members projecting upwardly from adjacent ends of said tool bars, said mounting frame including guide means from which said guide and support members are supported for guided vertical shifting, a cross-head assembly extending between and connecting the upper ends of said guide and support members, lift means operatively connected between said cross-head assembly and said hitch assembly for raising and lowering said cross-head assembly relative to said hitch assembly, said mounting frame means and the remote ends of said tool bars including coacting guide means guiding said remote ends against rearward displacement relative to said main frame, a plurality of tool shanks dependingly supported from each of said tool bars, sweep means mounted from the lower ends of said tool shanks, shaft journal means supported from said sweep means in trailing relation relative thereto, driven rod weeder shaft means journaled from and extending between said jornal means rearward of said wheel means, said rod weeder shaft means including rod weeder shaft sections journaled from each of said shaft journal means and rod weeder shaft members extending between adjacent ends of said rod weeder shaft sections.