Abstract
The six components of draft of Japanese plow were measured by using the six components measuring device.
The results about two bottom Japanese plow, were as follows:
The horizontal force Px was 109kg, the side force Py was 42kg, the vertical-force Pz was 21kg and the residual moment was 145kg·cm on loam soil (plowing depth was 15cm). (Fig. 2·3·4·15)
The specific resistance on loam soil is larger than on loamy sand soil, which is larger than on volcanic sandy loam soil. (Fig 5·6·7)
The centers of resistance are distributed upon plow surface, 1/2-3/4 of plowing depth and 1/3-1/4 of plowing width to right hand from the shear edge. (Fig. 13)
