为了改进杆式除草器的入土性能并减少其牵引阻力,在实验室土槽内对四种不同形状的除草器的土壤反作用力进行了测试。本试验采用了裂区实验设计;土壤类型为主区,除草器的形状,转速、前进速度及耕深在小区内。实验数据是由一个计算机化六分力式数据采集系统采集的。在测试的四种形状中,十字形截面的除草器所受到的牵引阻力和垂直支反力最小,具有良好的入土性能,优于圆形、方形和三角形截面的除草器。 Soil reacts on four different shapes of weeder were tested in a laboratory soil tank to improve the soil penetration of the rod weeder and to reduce its traction resistance. In this experiment, experimental design of split zone was adopted. The main type of soil was soil type. The shape, speed, speed of advance and depth of weeding were in the plot. Experimental data is collected by a computerized six-component data acquisition system. Among the four shapes tested, the cross-sectioned weeder received the least resistance to drag and vertical support and had better soil penetration than the round, square and triangle-shaped weeders.