还是新式步犁好新式步犁的工作部件,由犁铧、犁壁两部分组成,而二牛抬杠(犁)只有个V形的犁铧。步犁由于具有熟地型的犁壁,这样不仅可以将土垡升起,并翻转封犁沟里,而且通过上垡的上升和翻转,进一步加剧土垡的变形(破碎),得到疏松的上层。二牛抬杠只能稍微使土壤向两侧翻转。由于土壤受不到强制翻转,土垡变形 Or the new step Plow good new step plow working parts, by the ploughshare, plow wall of two parts, and two cattle bickering (plow) only a V-shaped ploughshare. Because of the plow-hauling plow wall, the plow can not only raise the soil ridge and flip the furrow, but also increase the deformation (crushing) of the soil ridge through the ascending and overturning of the upper ridge, resulting in a loose upper layer. Two cattle bickering can only slightly flip the soil to both sides. Due to the soil can not be forced to flip, soil deformation