PLOW IMPLEMENT TO WHICH SUBSOIL PLOW WITH MOLD BOARD IS ATTACHED

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PROBLEM TO BE SOLVED : To provide a bottom plow implement to which subsoil plow with a mold board is attached, in which a subsoil layer of a part deeper than plow sole is excavated, dumped and ditched by the subsoil plow with the mold board at the same time when plow operation is carried out and water permeability is improved and a plow layer can partially be enlarged thereby. SOLUTION : In the plow implement, beam extending in the lower direction is attached to the rear of plow body of the plow implement and a chisel in the position deeper than that of plow sole is attached to the lower end of the beam and a mold board is installed above the chisel and soil raised by the chisel is damped into a gravel groove by the mold board to prepare a subsoil furrow-making section. As a result, traction resistance is reduced and after-operation is facilitated without exposing subsoil on the ground surface and crop yield is not reduced by influence of subsoil. Further, a partially thick subsoil layer is made in order to re-bury the subsoil in the subsoil furrow-making section and a rooting area is widened to enable increase of crop yield. COPYRIGHT : (C)2006, JPO&NCIPI