... you the whole set of farm machine,including plough, planter/seeder(wheat,corn, soybean ), tractor(20HP--150HP), combine harvester(wheat ,corn ... , 310 mm and so on, by changing the transmission radio.4. Use good seeds, whose germination rate should be higher than ... land so the planting depth is consistent.Main technical parameter 4 planting rows, corn seed drill,corn planter,precision pneumatic planter ...