In order to make clear the practical efficiency of motor tiller in paddy field, authers carried this investigation on Yoshino village near Kawagoe City.
On tilling and harrowing of paddy field before rice planting, the efficiency is lower than figures in testing field of experiment station, because condition of irrigation water, land, operating system and technique of machine handling have influence upon. From this investigation, we knew that motor tiller have about 2.5 hours/one tan as a practical efficiency in this district.
