| 摘要 |
[Problem] The present invention relates to a method and device for forming raised crop rows by removing foreign elements by a sifting operation simultaneously with a tilling operation and heaping clod broken soil passing through the screen mesh and dropping onto the surface of the ground, and provides a method and device for forming suitable raised crop rows for working dry fields particularly in fields where foreign elements are mixed in. [Solution] The method for forming raised crop rows and forming device for the same are provided with a screen tool that receives and sifts soil thrown from a tilling unit directly after the tilling unit, which pulls the soil upward and throws the same rearward while traveling by rotation of a rotor having a plurality of tilling pieces, and create raised crop rows of a width substantially the same as the screen tool width. The method for forming raised crop rows and the forming device for the same are characterized by breaking the soil into smaller pieces by impact by means of back and forth movement of the screen tool in a traveling direction, separating the soil and foreign elements other than the soil, and forming a raised crop row by heaping clod broken soil passing through the screen mesh and dropping onto the surface of the ground. |
