在加拿大西部多使用牵引圆盘耙,既可进行整地又可进行播种。拖拉机手在坐位上用手操作推动油缸的阀门来控制耙深,耙深的变化是显著的。有的报告指出,这种圆盘耙的深度变化为±1时(2.5厘 In the west of Canada, more traction disc harrows can be used for land preparation and seeding. Tractor hand position in the seat by hand to promote the cylinder valve to control the rake depth, rake depth changes are significant. Some reports point out that the depth change of this disc harrow is ± 1 hour (2.5%)