Planting potatoes , gather and purchase . Found that the distance between the area planted potatoes and purchasing a potato is just short by an average of 4.5 kilometers because maintain product quality ,to make gather possible quickly and easily and Lower transportation costs for farmer. Different, distance between purchasing a potato and The processing plant is located very far away, with an average distance of 45 kilometers because The reason economic are negotiate lower prices for produce from farmers and distribution to Easy of food products to other areas.