Tillage experiments were conducted on nine sloping terraces with slope gradients of 0.08–0.65 m m-1. One paired plots on each sloping terrace were established to perform the two contrast tillage. Two types of tillage measures were performed: conventional tillage and conservation tillage which is known as ‘‘non-overturning hoeing tillage’’. For conventional tillage, the farmer tilled the field starting at the slope-toe and went upslope step by step, and the hoe (24 cm 9 cm in size) was hit into the soil layer with the 20 cm tillage depth and then turned the soil downslope with pulling downslope. Following this, the farmer smoothened land surface on which small pits were created during the course of soil excavation from upslope to downslope positions in the backward way along tilled path. The direction of soil movement was always downslope in the course of the two tillage operations. For non-overturning hoeing tillage, tillage by hoeing still started at the slope-toe and went upslope step by step but the hoe hit into the soil layer was slightly pulled downslope by the operator, without turning the soil downslope over pulling downslope. The function of this tillage method seems like ‘‘harrowing’’ to a certain extent.