1. The yams are piled up on the concrete floor of the warehouse. The bricks are raised about 1 meter high and buried in the pits. First, about 10 centimeters thick dry sand is laid on the bottom of the pits, and then the selected stalls are sun-dried. The yam lays on the sand in order, a layer of silt layer of yam, piled up to about 10 cm from the pit, and then sealed with dry sand, generally every other month or so, when it is reversed, it must be taken lightly. Put lightly, do not scratch the skin of the tuber, found that the lesion should be removed in time to prevent spread. 2. The yam's basket is covered with straw or wheat straw at the bottom and around the disinfected basket (box). Then, the selected yam piled horizontally to eighty percent in horizontal direction, covered with straw on the top of the basket (box), and then used horse-riding stacked in the warehouse, the height is generally three wicker baskets or four slats It is advisable to use the same box. To prevent the influence of ground moisture on the roots of the pile, put bricks or planks under the basket (box) at the time of stacking so that there is a distance of about 10 cm from the ground.
