What is soil tilth? 什么是耕层 指耕作措施经常作用的土层,也是作物根 系分布最密集的层次。 The physical condition of the soil fitness for cultivationWhat is Soil Tilth? 什么是耕层 指耕作措施经常作用的土层，也是作物根 系分布最密集的层次。 – The physical condition of the soil – fitness for cultivation