A device consists of a number of blades usually mounted on a single axis L. The retractor axis rotates by the tractor’s rear derailing shaft (shaft P.T.O). The blades collide with the soil and shreds the hunchs at a depth of 8 to 15 centimeters. The width of the work of a retro-fitting type is usually between 0.9 and 3 meters. By using this method, soil softening is very important in the cultivation of fodder plants with very high seed yield and full contact of soil particles with seed. If the seedbed in the irrigation and stacking method is not well-groomed and well-grooved , You can use a retriever to soften the surface of the surface of a broad stack. Another use of retinator is the crushing of plant remnants and mixing them with surface soil and destroying small and large weeds. It is important to note that the retivator makes the soil extremely dirty and subject to erosion. Therefore, the retoucher should not be replaced by other devices and should only be used in very urgent cases.