Power weeder uproots the weeds between the paddy crop rows with 25 cm row to row distance, in addition to, it keeps the soil surface loose for better soil aeration and water intake capacity. In this study modification was done to existing STIHL power weeder which is operated in line with the attachment of float and covering structure on weeding wheel to avoid mud splash over operator. In this study, the existing weeder and modified weeder has studied ergonomically. 3-axis accelerometer, showed that modified weeder has less vibration of m/s2 from the existing weeder. | Ergonomic evaluation and comparison of existing and modified power weeder
