FIELD WORK MACHINE

The invention relates to a field work machine which is provided with a powder supplying device that can operate in a constant speed no matter the manual operation of an operator. The field work machine is provided with components of a driving body; the powder supplying device (3) which has a storage part (31) for storing powder agricultural materials, a continuous feeding-out part (32) for continuously feeding the agricultural materials stored in the storage part (31), and an electric motor (33) which drives the continuous feeding-out part (32) to rotate, and furthermore supplies the agricultural materials to the field; and a control part for controlling the powder supplying device (3), wherein the control part has a common mode for supplying the agricultural materials to the field, and ametering mode for metering the agricultural materials which are continuously fed out of the continuous feeding-out part (32). In the metering mode, the control part drives the electric motor (33) so that the continuous feedin