分析水稻栽培的农业技术和现代土壤耕作及播种机械的状况,可以得出结论:将播前旋耕与播种结合起来是合理的,这种联合作业可以通过在旋耕刀辊罩盖下播种就能很经济地予以实现。如图1所示,以前进速度V_M 和回转速度ω运动着的刀齿,将切下的土壤抛至罩盖的反射面上,土壤撞击到罩盖上之后,进一步破碎,然 An analysis of the status of rice farming techniques and modern soil tillage and sowing machinery leads to the conclusion that it is reasonable to combine tilling and sowing before sowing which can be done by sowing Can be economically achieved. As shown in Fig. 1, the cutting teeth move to the reflecting surface of the cover with the teeth moving at the forward speed V_M and the turning speed ω. After the soil strikes the cover, the ground is further broken