The invention discloses a row-spacing-adjustable root
crop harvesting and fertilizing all-in-one
machine which is characterized in that three
shovel frames are arranged on a rack in parallel, the middle
shovel frame is fixed on the rack, the other two
shovel frames are slidably connected to the rack, and a driving unit drives the shovel frames on the two sides to move in the same direction or back to back at the same time; the three digging shovels are fixed to the bottom sides of the three shovel frames and used for digging out a whole
crop. The first stalk conveying belt and the second stalk conveying belt which are opposite in rotating direction are parallel and arranged at intervals to form a set of conveying units, and the three conveying units are arranged on the three shovel frames respectively and used for conveying crops. The first
cutting knife and the second
cutting knife which are opposite in rotating direction are arranged at intervals and form a group of
cutting units, and the three cutting units are arranged on the three shovel frames and used for cutting off
crop rhizomes. The high-adaptability requirement for line spacing in harvesting and fertilizing operation of
rhizome crops is met, the operation efficiency is further improved, and farming procedures and
time cost are reduced.