Potatoes: The storage temperature of the stored potatoes must be maintained between 1°C and 3°C, the relative humidity should be kept below 85%, and the air circulation should be maintained. During storage, different varieties are stored separately, do not mix with seeds, chemical fertilizers, etc., and do not put into places with large smoke and gas, so that potatoes will not be mildewed and germinate. Carrots: Carrots can be stacked in a ditch with the head down and the roots facing up. Spread a layer of carrots over the ground. Carrots can also be covered with 3 to 4 layers of soil, covering a total thickness of 70 to 100 cm. When the soil moisture is low, a certain amount of fresh water can be poured to make the soil moisture content 18% to 20%, but no water can accumulate in the ditch. Usually go public at one time. Yam: Using sun-sterilized wheat straw to pad the bottom of the disinfected basket (box) and around it, the selected yams are piled up to eight full layers, covered with straw on the top of the basket, and stacked in a ventilated storage. Stacking height is preferably 3 baskets or 4 boxes. To prevent ground moisture, 10cm high bricks can be placed on the bottom of the basket. Lotus root: Wash the lotus root soil, put it in a water tank, submerge it with fresh water, and change the water every 5 to 6 days. With this method, lotus root can be stored for about 2 months. Cockroaches: The bulbs of the alfalfa are rapidly immersed in a dilute sodium hypochlorite solution after harvesting. They can be stored for 10 months at a temperature of 0° C. to 2° C. and can be stored for 8 months below 5° C. Sagittarius: Choose a high-pitched, digging cellar at a depth of 50 to 60 centimeters, depending on the amount of storage. Lay a clean layer of straw on the bottom of the cellar. Mix the Sagittaria with dry fine soil and pour it into the pit or layer of Sagittaria. Then cover the straw in a distance of 10 cm from the cellar. Finally, cover the soil with 15 to 25 centimeters into a beak. You can.