Potato harvesters are machines designed for potato harvesting. This machine can finish mining, soil and potato separation in one time and can harvest the potato with the potato stems. It is a multifunctional machine which can used for variety kinds of underground plants such as peanut, carrot, onion, etc.A haulm topper is an agricultural machine that cuts potato stems (haulms) before potatoes are harvested. It is like a flail mower but has the profile of the potato drills. Modern potato farmers often mount a haulm topper on the front of the tractor and have a trailed potato harvester towed behind the tractor.