Soil mixing characteristics of reverse-rotational rotary tillage part 2: comparison of results between soil mixing model and field tillage test

摘要

The evaluation of soil mixing characteristics after rotary tilling is one of the important factors for crop cultivation. This paper describes the results between the soil mixing model presented in the first report and field tillage tests performed in two types of field, an upland and a paddy field. The model showed a good agreement in the upper and middle soil layers. Furthermore, the model led to a desirable design of a rotary cover which would correspond to be based on the characteristics ofbackward throwing of the tilled soil by the blades.