A kind of powered harrow grass,Ridge buster,System includes: a fixed disk,The central location of fixed disk is equipped with a perforative fixation hole,The periphery of fixed disk down it is curved set two or more arc portion,A front end is extended in each arc portion front end,Wherein,Front end is able to form the front end of tulwar shape,Or front end is able to form trapezoidal and what bottom end and up opens up a gap slot,And the symmetrical arc portion of its part and can parallel what fixed disk periphery tangent line,Or what periphery tangent line forms a rake angle θ 1,And front end and an outer rake angle θ 2 can be formed tiltedly stretch outward,Fixed disk must be triangle or circle,Accordingly,When progress weeding on what grass trimmer is installed in this creation,It can carry out harrowing grass movement and movement of loosening the soil of stirring,The timeliness of herbicidal effect can be extended,And plant can be helped to promote activity and raw elder.一種動力耙草、鬆土器，係包含有：一固定盤，固定盤的中央位置設有貫穿的一固定孔，固定盤的周邊往下彎設二以上的彎弧部，每一彎弧部前端延伸出一前端部，其中，前端部得以形成彎刀形狀的前端部，或者前端部得以形成梯形並於底端往上開設一缺口槽，而其部份對稱的彎弧部並可平行於固定盤周邊切線，或於周邊切線形成一斜角度θ 1，而前端部並可形成一外斜角度θ 2往外斜伸，固定盤得為三角形或圓形，據此，本創作裝設於割草機上進行除草時，可進行耙草動作及翻攪鬆土動作，可延長除草效果的時效性，並可幫助植物促進活性及生長者。
