TY - JOUR T1 - Prototype for soil mechanical resistance measurement with chisel plow automated control JO - Engenharia Agrícola A1 - MACHADO, THIAGO M. A1 - LANÇAS, KLÉBER P. SN - 0100-6916 UL - 10.1590/1809-4430-Eng.Agric.v36n4p646-655/2016 VL - 36 Y1 - 2016 PB - Brasil ER -