Many of our friends like to eat sweet potatoes, but sweet potatoes are delicious but not easy to store. In fact, there are many names of sweet potatoes. We also call them sweet potatoes, red glutinous rice, red glutinous rice, sweet potatoes and so on. The original heat generation has wide adaptability and is planted in the southeast and northwest of the country. Moreover, the ridge is thin and the yield is high.
Sweet potato has high nutritional value and is suitable for most people's tastes. However, due to the large water content of the skin, it is easy to break, and it is affected by cold damage and infection. If the winter storage is not good, it is very easy to rot and deteriorate. The following two storage methods are described:
First, indoor storage
When the potato chips are used for a long time, they can be stored in a well-insulated indoor storage. In the initial stage, they can be heated for 4 days and 4 nights for 35 to 40 degrees, which can heal the wounds and damage the surface of the potato. It is often maintained at 12 to 14 degrees in the future and is often ventilated.
In addition, if the amount of potato is small, it can be stored in a wooden box, placed in a warm and dry place indoors, and kept at not less than 10 degrees, not higher than 15 degrees.
Second, the storage method
The sputum is divided into long sputum and well sputum. When the amount of potato is large, long sputum can be used. The depth of the sputum generally needs 2 meters 5 to 3 meters. It is easy to freeze damage when it is too shallow, and the heart of the sweet potato that has been frozen is hard to cook.
The stored sweet potato should be harvested at a temperature of about 15 degrees around 5 to 10 days before and after the frost. When the temperature drops below 10 degrees, it is susceptible to cold damage and easy rotting. Sweet potatoes should be handled gently when harvesting, do not touch the epidermis. Before the squatting, you should take out the bad potato and hurt the potato. Spray the potato body with a special sweet potato preservative to soak it, then cover it with a plastic cloth for about 6 hours. Open the skin and dry it.
Before the squatting, the old cockroaches should be cleaned, the surface of the carcass should be scraped off, and the surface should be disinfected with 50% carbendazim 1000 times. Then lay a layer of fine sand on the bottom and squat.
If the amount of potato is too large, more than 1 meter thick should be placed one per square meter of straw with a corn pole (20 cm in diameter) to facilitate ventilation.
After the squatting, the surface of the sweet potato appears wet, called sweating, and it should be mainly ventilated and damp. Do not close the door, and the kiln can be sealed when the outdoor temperature is close to 10 degrees. The temperature is stable at 12 to 14 degrees and the relative humidity is maintained at around 80%.
30-40 days after entering the country, it will become the wintering period before the temperature rises in the next year. At this time, it should be centered on heat preservation and cold protection. As the potato block is weakened, the calorific value is small and the outside temperature is low. The soil layer must be thickened outside the sputum, and the scorpion should be tightly sealed. Keep the temperature between 12 and 14 degrees, and prevent rain and snow from infiltrating and harming rats.
After the spring. In the winter, when the oxygen is lacking in the winter, the viability of the potato pieces is reduced. If it is not easily ventilated, it will quickly spread. Since then, ventilation should be used to stabilize the temperature. Uncover the cover while keeping the temperature at 12-10 degrees. First open the door, strengthen ventilation, and keep the potato block breathing normally. However, when the weather is cold, the weather is unstable, and the door should be opened at any time according to the temperature.
It should be checked frequently during storage and the rotten potatoes are found to be immediately removed. Do not touch sweet potatoes after drinking, and the sweet potato is easy to rot due to the accelerated smell of alcohol. After the sale, the remaining potatoes should not be placed in the pot, and the outdoor environment has been damaged by freezing and put into perishable.
The above is the two sweet potato storage methods introduced by Huinong.com. If you have your own tips, you can also comment on the message and share it with everyone. Knowledge about planting sweet potatoes can also pay attention to our school to benefit farmers, such as sweet potatoes before Xiao Bian wrote how fertilization? Let fertilization techniques yield of sweet potato, sweet potato new varieties which have? Introduction of new varieties of sweet potato.
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