On the Displacement of Soil by the Tillaging Machines (1)

Abstract

(1) We have introduced the next equation to indicate the soil displacement by the tillaging machines, and named it “the mixing grade soil”
M=100-0.5S
where, S is the deviation from the completly mixed condition.
(2) Seting the several tilling-tools to the rotary type tillaging machine, we calculated the values of M under changing the relative speeds of rotary and travelling axes.
These values indicated the characteristics of soil displacement fairly well.
(3) It became clear that ΔA₁ might be One of the most importent factors to the value of M at comparatively loosened. The smaller |ΔA₁|, the higher M.
(4) The mixed condition of soil may be generally considered by investigating the distributon of tihe rjce-straws which are cut into the soil.