PROBLEM TO BE SOLVED: To reduce the right and left width of a land grader, as necessary, in a rice transplanter. SOLUTION: The rice transplanter is obtained by freely liftably and lowerably connecting a planting part to the rear of a traveling part and mounting the land grader in the planting part. The land grader is equipped with a rotor rotating shaft having the axial line facing in the right and left directions, the plurality of rotors coaxially mounted on the outer periphery of the rotor rotating shaft and a transmission case interlockingly connected to the rotor rotating shaft between the rotors adjacent to the right and the left and transmitting power from a prime mover part installed in the traveling part to the rotor rotating shaft. In the rice transplanter, the rotor rotating shaft is formed from a rotating shaft on the fixed side supported on the planting part and a rotating shaft on the demounted side freely demountably connected to at least either one of the right and the left lateral sides of the rotating shaft on the fixed side. At least one rotor is mounted on the rotating shaft on the demounted side to make the rotor freely demountable through the rotating shaft on the demounted side. COPYRIGHT: (C)2007,JPO&INPIT
