PramuhadiG., DaywinF.J., MandangT. and HaridjajaO. 1. Study of Optimization of LInear Velocity of Rotary Blade and Tractor Forward Speed Ratio on Soil Pudding of Wet Field Rice. Jurnal Keteknikan Pertanian. 13, 3 (1). DOI:https://doi.org/10.19028/jtep.013.3.%p.