Why do sweet potatoes rot in winter, and how to store sweet potatoes in spring so that they don t ro

The reason why sweet potatoes will rot in winter. It is generally caused by poor management, as long as the following points are done, it will not rot

The first is to choose a good sweet potato, it is best to dig up the sweet potato before frosting, and it has not been frozen before putting it into the kiln, so that the sweet potato can be put in April of the next year. Generally, the sweet potatoes we buy in the market (especially in the north) are actually frozen, which hurts the potato body, and such sweet potatoes will spoil after a few days.

The second is to master the temperature: the storage temperature of sweet potatoes is very important, generally controlled at 8 14 degrees, the temperature will rot when the temperature is low, and the temperature will sprout when the temperature is high.

The third is not to be blown by the wind, sweet potatoes that have been blown by the wind for a few days are delicious, but they are easy to spoil.

I don't know which kind of sweet potato rot it is, and there are many reasons for sweet potato rot as follows;

1.Sweet potatoes began to rot after 10 days of frost damage.

2.There are injuries; Such as digging wounds, puncture wounds. Crushes, bruises, insect injuries, germs are easy to infect, such as high temperature, high humidity and poor ventilation, and begin to rot after 7 days.

3.Sweet potatoes are raining at the time of storage, and there is a lot of rain in the later stage of planting, and it may be that your sweet potatoes are not disease-resistant. Sweet potato storage has a lot to do with the variety.

4.There are injuries and diseases, frostbite and decay quickly in the early stage. Non-resistant varieties with bacterial infection decay quickly in the later stage.

Sweet potatoes should be stored at 11-14 degrees Celsius with a humidity of 90%. Disease prevention 70% methyl and sweet potato preservatives are used.

Ways to preserve sweet potatoes in the spring that won't rot:

1. Well cellar storage: choose a place with high terrain, solid soil and low groundwater level, and dig a wellbore downward, generally with a diameter of about 1 meter and a wellbore depth of 5 or 6 meters. The size of the storage room can be determined according to the amount of storage.

In the storage room, 10-15 cm thick dry sand should be padded, on which sweet potatoes are placed. Sweet potatoes can only be filled to 70% in order to leave room for ventilation, otherwise they will rot aggravated by humidity and heat.

2. Shed storage: generally dig a cellar about 2 meters wide, 3 4 meters long, and about 2 meters deep. Stack the sweet potatoes from the bottom up one by one, and avoid direct contact between the sweet potatoes and the cellar wall.

3. Cellar storage: The structure of the cellar is similar to that of the general house, but the walls and roof are very thick, sealed all around, the windows are open, and there is a fire channel for heating, which can be treated with high temperature callus. There are two types of cellars: large cellars (storage of 15,000 kilograms) and cottage cellars.

The cellar body of the hut cellar is small, labor-saving and material-saving, suitable for farmers' storage, generally each cellar can store 1500 3000 kg.

4. Indoor storage method: sweet potatoes are afraid of cold, and when the temperature is too low, they will be frozen, forming a hard heart, steaming and cooking; If the temperature is too high, it will sprout again, and it is best to control the room temperature at about 15. Sweet potatoes are damp and can easily cause germs to attack and cause rot, so it is best to store them in a breathable wooden box.

5. Slice drying and preservation method: slice the sweet potato and put it on the house or in a sunny, dry and ventilated place to dry. Be careful not to be exposed to rain or snow. After drying, store it in a dry place indoors and soak it in water before eating.

Sweet potatoes that have just been dug up from the ground, the surface is wet, and some have a lot of mud, if you take it back and put it at home, it is difficult to store it for a long time, and it may rot or sprout, so there is a way to preserve sweet potatoes for a long time.

If you want to preserve sweet potatoes for a long time, you must first pick them, there are dark spots, cracks, or wormholes, don't do it, this kind of sweet potatoes are not easy to preserve, and they will rot during the preservation process, but will affect other sweet potatoes, and the appearance of sweet potatoes that you want to preserve for a long time should be complete and undamaged.

If you receive a sweet potato that has just been dug out of the ground, you should put it outside to dry it after you choose it, preferably in cloudy or cloudy weather, spread out the sweet potato, dry the moisture on the surface, and dry it for about a day, which is the first step to preserve the sweet potato, if the moisture is too large, it is easy to germinate during the preservation process.

If you buy it from the supermarket, you can start from this step after you choose it, the sweet potatoes purchased in the general supermarket, the surface moisture has been dried, but it will still carry mud, sweet potatoes with mud are the best, no need to wash off the mud on the surface, mud is the protective layer of sweet potatoes, which can play a role in prolonging the preservation time of sweet potatoes, and the sweet potatoes dried on the surface can be directly preserved.

Prepare a cardboard box, the carton is slightly larger, put a layer of newspaper on the bottom of the carton, put the sweet potatoes in it, leave a little gap between the sweet potatoes, a layer of newspaper, a layer of sweet potatoes, the top is still a layer of newspaper, the newspaper can absorb moisture, and the effect of keeping warm, it is simple and convenient to use it to preserve sweet potatoes, and toilet paper can also be used if there is no newspaper, the effect is the same.

After packing the box, keep it in a relatively dry place at home, it will not be bad for half a year, and do not put it in a heated room, because the sweet potato is stored at a temperature higher than 15 degrees for a long time, and it is easy to sprout.

Why aren't sweet potatoes bad in winter, but frozen in spring.

Sweet potatoes are mainly composed of carbohydrates and vitamins, which can be well preserved in low temperatures, so they are easy to spoil in winter. In spring, when the temperature rises sharply, sweet potatoes will spoil in the high temperature environment, and they will rot and spoil.

The main reasons why sweet potatoes are easy to rot are as follows:

1.Improper storage conditions. Sweet potatoes need to maintain a certain humidity and ventilation during storage, if the storage environment is too humid or poorly ventilated, it is easy to cause sweet potatoes to rot.

2.Damage to Zen Hui file damage Bi fiber and wounds. Sweet potatoes have a thin skin that can be easily damaged or left with wounds, which can become a breeding ground for bacteria and accelerate the process of sweet potato decay.

3.Pest and disease infections. Sweet potatoes are attacked by pests and diseases, such as blight fungus and nematodes, which will multiply inside the sweet potato, causing the sweet potato to become soft.

4.Differences in variety and quality. There may be differences in storage tolerance, disease and pest resistance, and stress tolerance of different varieties of sweet potatoes, which will also affect whether they are perishable.

Therefore, when we buy and store sweet potatoes, we need to buy the best sweet potatoes, and the storage environment should be ventilated and dry, and pay attention to avoid damage and wounds. In addition, it is also necessary to pay attention to prevent the invasion of pests and diseases, and remove rotten sweet potatoes in time.

Summary. Kiss hello, the main reasons why sweet potatoes rot in the ground are as follows. In general, sweet potatoes rot in the ground is the weather reasons, there are also human factors, the best time to harvest sweet potatoes is fifteen days after the frost, fifteen days later has entered the frost period in the twenty-four solar terms, the weather is colder in the morning and evening, and there are often frosts, freezing rain in the sky, after the hoarfrost melts, it penetrates into the soil of planting sweet potatoes, the surface of the sweet potatoes is frozen, and the sweet potatoes can also be frozen ripe, and the sweet potatoes have lost the protection of the epidermis since then, and they have begun to rot and deteriorate slowly. Usually when you dig sweet potatoes, you smell the pungent smell of sweet potatoes, which means that your sweet potatoes have begun to rot, right, sweet potatoes like this can not be stored as seed potatoes, and they cannot be stored and eaten when they are dug back, so as not to cause human poisoning.

Kiss hello, the main reasons why sweet potatoes rot in the ground are as follows. In general, sweet potatoes rot in the ground is the weather reason, there are also human factors, the best time to harvest sweet potatoes is fifteen days after the frost, fifteen days later has entered the 24 solar terms in the wild sale in the frost period, morning and evening weather is relatively cold, and there are often frosts, the sky is freezing rain, after the hoarfrost melts, it penetrates into the soil of planting sweet potatoes, the surface of the sweet potatoes is frozen, and the sweet potatoes can also be frozen ripe when they are serious, and the sweet potatoes have lost the protection of the skin. It also began to rot and deteriorate slowly, usually when you dig sweet potatoes, you smell the smell of sweet potatoes with a prickly mountain nose, that is to say, your sweet potatoes have begun to rot, right, sweet potatoes like this can not be stored as seed potatoes, and they cannot be stored and eaten when they are dug back, so as not to cause human poisoning.

Related information: The best growth period of sweet potatoes is generally after the autumn equinox, and the Xi's lead room is well opened in the fifteen days when entering the white dew, and it has been circulating in our countryside in the past"White dew and thin mud, sweet potatoes grow a skin", that is to say, in the fifteen days after the white dew, if the sweet potato soil is moist, the weight of a layer of skin can be increased in a day and a night, so we harvest sweet potatoes generally have a higher yield after frost, which is more suitable, if you dig early, it will cause a reduction in sweet potato yield, and digging late will cause the sweet potato to rot in the ground.