Development and Testing of a Power Tiller Operated Potato Digger

摘要

A bullock operated single row potato digger was modified to be used as an attachment to power tiller, by considering the power availability after complete removal ofrotavator tillage assembly. It consisted of a frame, blade with share point, tool shank, extended screw and depth control wheel. An offset beam was provided to adjust the blade to the left and right to the power tiller. The performance of the power tiller operated potato digger was evaluated for harvesting at 40 cm x 60 cm spacing in thefield for forward speed of 1km/h and also compared with manual digging. The effective field capacity and field efficiency were found to be 0.105 ha/h and 77% respectively. The developed digger was found very economical as it reduced cost by 60 % over manual digging using spade.