... working efficiency 3.Small size ,compact design 4.Multi-functional type of sweet potatoes planting machine ... introduction of new advanced production technology, 2.the potato machinery with four wheeles tractor use, 3. ... ditch,fertilizing, planting. Turn the soil. 4.Shock pressure for an organic whole, but once completed fertilization ... (ha/h)0.1-0.140.4-0.6Matched power(hp)1820-35 potato planter