| 摘要 |
PROBLEM TO BE SOLVED: To obtain a ridger which fertilizes a formed ridge at the position where the root of a crop requires most while forming the ridge, etc., eliminates the need to additional fertilizing, and enables covering operation and is improved in labor saving. SOLUTION: Earth tilled by a rotary 3 mounted on a traveling machine body is formed into a ridge and a groove by multistripe ridger 4 mounted on the rear part of the rotary 3, the top surface of the ridger 4 is slanted backward, and a fertilizing pipe 5 which faces the ridge is provided by penetrating the top surface of the ridger 4; and the fertilizing pipe 5 has its tip bent backward and, while the ridge and groove are formed, the formed ridge is fertilized from the tip of the fertilizing pipe 5. At the rear part of the ridger 4, the ridger 4 is preferably equipped with a ridge film supply device 12 which supplies a ridge film 11 covering the ridge, a groove film supply device 14 which supplies a groove film 13, a press-in device which presses both the ends of the ridge film 11 in, a stamping device 16 which stamps the groove, a welding device 18 which welds both the ends of the films 11 and 13, and a perforation device 19 which forms water drain holes in the groove film 13 after stamping. |
