Ginger storage technology

1) Storage characteristics. Ginger is warm and humid, not resistant to low temperatures, and vulnerable to cold damage below 10°C. The cold-damaged ginger block is easy to be rotten when the temperature rises, and the storage temperature is too high. The temperature is about 15°C and the relative humidity is 65%.

Stored ginger should be harvested with fully grown rhizomes that cannot be frosted in the ground. Generally, they will be stored with the next underground and cannot stay overnight in the field. It is best not to harvest on sunny days to avoid over-exposure to the sun and harvest after a rainy or rainy harvest.

2) Ginger storage method. Pit burying method and well pitting method. The soil is deep, the soil is sticky, and the temperature in winter is low where it can be stored in wells. Such as Shandong Laiwu, Tai'an and other places. The pit is about 3 meters deep and two storage rooms are dug at the bottom of the well. In places where the groundwater level is higher in Zhejiang, pit-burial methods are used more often. The ginger cellar in Hangjia District of Zhejiang Province is mostly a round pit. The diameter of a typical cellar is 2 meters, the cell diameter is 2.3 meters, and the underground portion is 0.8-1 meter deep. The principle of no water is used, and the excavated soil surrounds the cellar. To make the pits a total of 2.3 meters, the earth wall on the ground should be photographed to prevent air leakage. General ginger pit should not be less than 2.5 tons, otherwise it is difficult to keep warm in winter. Approximately 10 cm of bundles of air bundled with reeds or thin bamboos are arranged upright in the pit, and approximately 500 kg of ventilation bundles are used. Ginger blocks are arranged in the pits, with a high middle and low ends. They are covered with a layer of soil around them. Afterwards, with the temperature decreasing, the cover soil is added in several stages. Covering the total thickness of 60-65 cm around the center, the central 12-16 cm, pits to prevent rain, cold.

The main points of management in storage are heat and cold. At the early stage of storage, the stems are vigorous and the temperature is easy to rise. Therefore, it is necessary to maintain normal ventilation. After about one month of pitting, it is required to maintain a slightly higher cellar temperature (about 20°C). Afterwards, the ginger pile gradually sinks, and it is necessary to crack the cover layer at any time. Fill in to prevent cold air from entering. The ginger cellar must be tight to maintain good internal conditions for spontaneous preservation. The bottom of the pit cannot be filled with water. Ginger stored in the cellar can be consumed at any time during the second year, but it must be completed at the same time.

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