抄録
Weed control is a significant issue on organic rice farming. Weed can be managed without agricultural chemicals via rice duck farming, crop cultivation and multing, but they are labor-intensive work or need much cost. In this research, a small and row-cost weeding robot was developed. The robot was equipped with three propellers and floats on the surface of paddy water. Water stream from the propellers drove robot as well as control weed by churning the surface of a paddy field. The robot marked an average acceleration of 0.053m/s^2. A result of a simulation showed the robot could weed 0.03-ha paddy field within 2 minutes and the speed was considered enough for this robot weeding.
