Method for storage of sugarbeet roots

The storage period of sugarbeet roots reaches 200-220 days (days). In these 7-month periods, suitable environmental conditions must be created to ensure that the roots are not frozen and not hot, and that they are in a good dormant state to reduce nutrient consumption in the roots. And security through the vernalization stage, lay a good foundation for future seed collection. The suitable temperature during cellaring is 0°C～2°C, and the suitable humidity is 85%～95%. If the cellar temperature is too high, the seedlings will germinate too long and consume nutrients, and when they are heavy, they will spoil and deteriorate, causing serious losses; Too low, the roots are susceptible to freezing and decay. Here are a few practical storage methods for sugar beets: 1. Temporary storage Temporary storage refers to the storage in the field or pit outside the harvest period after the roots have been harvested and before entering the winter cellar. Because the roots are harvested, the metabolism is strong, the temperature is high, and the cellar temperature is also high. If the roots are harvested immediately after they are harvested, the cellar temperature will be higher, resulting in germination and even deterioration. About 30 days (days) of storage in the field or pit outside the plant, the respiratory intensity of the seedlings can be gradually reduced, so that the roots of the frozen or wilting plants can be revealed so that they can be eliminated when entering the winter cellar, and healthy roots can be eliminated. Already in a dormant state, it also helps to ensure the quality of the cellar. The day of the day when the good roots are grown on the day, temporary storage is required on the same day. If the roots are closer to the cellar, they can be stored in the field. If the roots are far away from the cellar, they should be transported to the root cellar and stored outside the cellar. Temporary storage method is very simple, digging a deep 30 ~ 50cm, width 70 ~ 100cm of the ditch, the length of the ditch depending on the number of seed roots will be the root pile heap ditch, heap height 70 ~ 100cm, semicircular, Then cover the root pile 15 ~ 20cm thick soil can be. Second, before the winter storage land is frozen, the roots temporarily stored in the field need to be timely transported into the root pit for winter storage. According to the use of seedlings, there are two ways of wintering cellars: the original roots, generally used permanent root cellar storage; production of all kinds of roots, generally using simple root cell storage. 1, permanent root cellar storage. This kind of cellar can not only store a large number of seedlings, but also facilitate the single sugar detection operation. Therefore, all kinds of sugar beet breeding departments and sugar plant original species stations in China are using permanent root cellar storage roots. The specifications of a kind of root cellar: the cellar width is 8-12m, the height is 3.5m or so, and the length can be determined as needed. A ventilation hole is set every 3~5m in the pit. The middle of the cellar is used as a channel and the roots of the seedlings are selected, and the two sides are partitioned into concrete compartments with cement boards. 2 kinds of roots entering the cellar: before entering the cellar, the cellar needs to be cleaned and sulphur is used for fumigation. When entering the pit, open the temporary storage heap, strictly eliminate the roots of freezing and severe wilting roots, and the roots that have grown too long need to be renewed. Pack the excellent seedlings into the cellar and store them in different compartments according to different varieties and strains. Do not mix. A temperature measuring cylinder was installed inside the reactor to observe the temperature inside the reactor. The top of the pile should be covered with moist sand to prevent roots from wilting and losing water. The management of three kinds of root pits: The roots that have just entered the pit, the respiration is still relatively strong, the stacking temperature and the pit temperature are all easily increased, and ventilation and heat dissipation should be timely. During the outside temperature changes, cellar temperature often changes with the outside temperature changes. The increase of cellar temperature often affects the change of humidity. Attention should be paid to adjusting the humidity in the cellar. Generally, the cellar humidity should be maintained at 90% to 95%. With the constant decrease of the outside temperature, the cellar temperature may gradually stabilize after entering the pit for 15 days (days). The cellar temperature is generally around 2°C and the stack temperature is around 3°C. In December, the cellar temperature is around 1°C and the stack temperature is around 2°C. From January to February, the cellar temperature can be reduced to about 0°C, and the reactor temperature is about 1°C. 2. Simple root cellar storage Simple root cellar commonly known as cryptocell, is a underground crypt, suitable for the production of roots with various storage. 1 The specifications of the cryptocellar: generally 2m in depth, 1m in width and 5m in length. 2 kinds of roots entering the cellar: Before entering the cellar, clean the inside of the cellar and apply a small amount of lime powder to disinfect the bottom of the cellar. Put the excellent seedlings into the boring cellar. The stack height is 1.3 to 1.5m, and the top is leveled and covered with 5 to 10cm thick wet sand. Then the sorghum stalks or corn stalks are laid on the pit floor, and finally the cellar is sealed. 3 Warehouse management: First, cellar temperature observation: Generally, one observation cellar is set for every 10 to 20 cellars, and the temperature in the cellar and the temperature in the seed heap are measured daily. After entering the pit, the temperature in the pit is generally changed with the change of the outside temperature, and the temperature in the heap will gradually increase from the beginning, gradually decreasing after about 10 days (days). The second is the management of cellar temperature: In the initial stage of cell entry, prevent stack temperature from rising too high (above 4°C) and avoid germination and rot. The method is to use the vents to adjust the temperature of the pits. If the cellar temperature drops to 1 °C ~ 2 °C for 20 days (days), it indicates that the temperature in the pit has been normal and the vents can be closed.