1. Film account method: The plastic film storage account will be used to cover the lotus root, but should not be sealed, and the account should be transparent once a day. 2. Soil burial method: first use bricks or wood to form a burial pit, then a layer of lotus root a layer of soil, heap 5-6 layers, and then cover 10 cm of fine soil. Storage of soil, should be fine with a soft hand to squeeze the group is not suitable for the group, storage, the oyster should be discharged in order, so as not to break. If it is buried in a concrete warehouse, the bottom of the pit shall be first padded with a wooden board or a bamboo frame, and the bottom shall be disinfected with drugs. Then, a layer of fine soil about 10 cm thick shall be laid and stored in the same way as above. If it is buried in open air, it should be selected where the terrain is high and backs against the sun. The layers of soil and earthworms are piled up into slopes or pagodas.