Will sweet potatoes rot if they are dug after the beginning of winter?

Why are frosted sweet potatoes so sweet? In my impression, some adults in rural families often say that sweet potatoes will be sweeter after frost, mainly because the temperature difference between day and night after frost is relatively large, and photosynthesis of sugar and starch during the day is lower at night temperature, and the consumption is less and more accumulated, so it is sweet and delicious. However, after the frost, the sweet potato is affected by low temperature and cold damage, which is not conducive to storage, and many people also choose to dig sweet potatoes before the frost.

Therefore, in the countryside, there are often two different ways to shave sweet potatoes, so is it better before or after frost?

In fact, there is no accurate answer to this question, and everything still has to be adapted to local conditions. Frost is one of the 24 solar terms, this year's Gregorian calendar October 24 is frost fall, every year as soon as the frost arrives, the weather gradually becomes colder, there will be the appearance of the first frost, indicating the end of autumn, the arrival of winter. And China's vast territory, sweet potato planting field is very extensive, different places in the Yellow River on this day of the temperature is also different, in the north, after the frost is colder, but in the south is not so, so the frost is not a good time reference.

Experienced potato farmers determine the harvest date based on the year's temperature, soil moisture, safe storage and timing of the next crop.

The first is the change in temperature. Sweet potatoes have decreased and continued to expand when they are below 18 degrees, and they have stopped when they are below 15 degrees. If it is lower than 10 degrees, it is very easy to freeze damage, mainly because the moisture of sweet potatoes is relatively large, and it will become very difficult to store and easy to rot and deteriorate when they are dug up at this time.

Then there is the problem of soil moisture. On the one hand, the soil humidity is relatively large, and the moisture content of sweet potatoes is naturally not low. On the other hand, the soil is relatively sticky, and the mud on the sweet potato will not fall off easily, which will bring some inconvenience to the harvest.

Therefore, it is necessary to check the moisture of the soil in time to determine whether it is ready for harvesting.

Finally, it is necessary to consider when the next crop will be planted. Farmers should also be able to plan their planting to ensure a bumper harvest of sweet potatoes while not affecting the sowing of the next crop, which are also some things that farmers should consider.

In short, sweet potato harvest is not only a simple factor of frost and solar terms, but also should be considered from the aspects of temperature, soil, safe storage and crop stubble, etc., so as to ensure the yield of sweet potatoes at the same time, but also improve the quality of sweet potatoes to obtain good economic benefits.

Will sweet potatoes rot if they are dug up after the beginning of winter? As long as the ground is not frozen, it will not rot.

Sweet potatoes should be harvested after the beginning of winter, that is, it is time to harvest. Because, after the beginning of winter. As the weather changes, the temperature drops. If the temperature drops below freezing, the ground will freeze and the exposed sweet potatoes will freeze.

There are exceptions to everything, after the beginning of winter, if the weather is still warm and does not cool down, you can not rush to dig sweet potatoes. But you can't be too careless, you must pay attention to the weather changes, and harvest sweet potatoes at any time to avoid frost damage!

Here's how sweet potatoes can be stored for the winter and don't rot

1. Pick sweet potatoes with no skin wear: Not all sweet potatoes are suitable for long-term storage, we buy bags or boxes of sweet potatoes at home, first of all, we must pick out the sweet potatoes with complete appearance and no wear on the skin. For example, some sweet potatoes with damaged epidermis, missing arms and legs, or sprouts, should be eaten as soon as possible, and should not be left for a long time.

2. Long sweet potatoes are more suitable for preservation: If you look closely, you will find that the sweet potatoes sold in the market can be roughly divided into two shapes, one is thin and long, and the other is round and fat.

In addition, compared with round sweet potatoes, when cooking, long sweet potatoes are easier to cook because of their uniform size and thinner outline.

3. It is best to store in an environment of 10 -15: sweet potatoes do not like low temperature environments, the temperature is too low, sweet potatoes are easy to freeze, resulting in a hard heart, not easy to cook, and the taste is not good. Sweet potatoes also don't like high temperatures, and if the temperature is too high, sweet potatoes are easy to sprout, which will also affect the taste.

The most suitable ambient temperature for storing sweet potatoes should be between 10 -15.

1. Newspaper preservation method

Wrap each sweet potato with newspaper and put it in a cool and dry place, the function of newspaper and brown paper bag is mainly to shade the light, but it can provide sufficient air circulation, which can well prevent sweet potatoes from rotting or germinating, which is conducive to the preservation of sweet potatoes.

2. Make a cellar

If it is a rural area, and if there is a condition, you can make a cellar, it is similar to the cellar, but it is simpler, first dig a pit about 5 meters long on the ground, about 3 meters wide, and about 1 meter high, be careful not to dig too high, it will be easy to collapse. When we put sweet potatoes in, we should first spread a layer of straw to prevent moisture. In this way, the sweet potatoes can be stored for a long time without spoiling.

3. Place a dry and breathable room

Sweet potatoes can be stored at home in a dry and breathable room, and the sweet potatoes are placed outdoors for drying a few days before storage to evaporate a certain amount of moisture, and then stored not easy to rot. Put some straw on the wall around the sweet potatoes to prevent moisture, and then stack the sweet potatoes neatly, if it is in winter, you can cover the sweet potatoes with a quilt or blanket to prevent freezing and damaging the sweet potatoes.

Sweet potato storage optimal temperature:

Storage environment temperature: Sweet potatoes are not the same concept as storing and growing in the soil, and after losing the supply of nutrients and water, they are stored in an environment outside the soil for a long time, and the temperature and humidity requirements are more stringent.

The best storage temperature of sweet potatoes can not be lower than 10, nor higher than 15, the temperature is too low, it is easy to cause freezing damage, the formation of epidermal frost spots or hard potatoes; Too high a temperature can easily break the dormancy of sweet potatoes, causing sweet potatoes to sprout, and then forming bran and affecting the taste.

Sweet potatoes are planted after the winter solstice, and sweet potatoes are not hidden.

Sweet potatoes are not suitable for planting in winter due to low temperatures, and 20-30 is the best temperature for growing sweet potatoes. If you must plant, you can take greenhouse planting, but considering the cost, it is not recommended to plant for the purpose of production and sales.

When selecting Liang Shi, choose round-leaved varieties with strong growth and vigorous stems and leaves. There are two ways of planting, tuber propagation and cuttings. Covering with mulch film in winter can achieve the effect of heat preservation. Water a lot in the early stages of growth, and gradually reduce the frequency and amount of watering in the later stages.

Pay attention to planting sweet potatoes.

1. Soil conditions: According to the temperature in winter, the soil rich in humus and deep soil layer can be selected, and the land that has been planted with sweet potatoes can also be used to renovate and then use the stove residue cavity to plant sweet potatoes.

2. Breeding: If you want sweet potatoes to grow well, seed selection is very important, mainly to find some round-leaf seedling varieties with strong stems and leaves and thick leaves. Xu Shu No. 18 and Xu Zishu No. 8 are all very good.

3. Planting method: There are two planting methods, directly planting sweet potatoes or cuttings seedlings in the form of tubers. If it is the first way, pay attention to choose slender sweet potatoes and plant them flat; If you choose the second method, you need to add organic fertilizer that has been rotted before planting, and insert it on the ground.

It is just between the beginning of summer and Xiaoman, and it is a good season for planting sweet potato seedlings in most parts of China. Traditionally, it's summer, and the average daily temperature is in the mid-20s. Local farmers still think that transplanting on rainy days is better because the soil is moist and it is easier to survive, and even so, it is better to water the shed after planting, which can improve the survival rate.

Some netizens asked:The beginning of summer has passed, Xiaoman is coming, can you transplant sweet potato seedlings now? Is it better to transplant on a sunny or rainy day?

This question is divided into two parts, and we will break them down and talk about oneUnder.

The beginning of summer has passed, Xiaoman is coming, can you transplant sweet potato seedlings now?

Regarding the transplanting of sweet potato seedlings, in fact, there is still a temperature difference between the north and the south.

Sweet potato is a temperature-loving and heat-tolerant crop, it still has certain requirements for the temperature of growth, and when the average daily temperature reaches about 20, this temperature is suitable for the growth of sweet potato.

Therefore, if the temperature is lower than this suitable temperature, it can be appropriately delayed before transplanting. If the temperature is too low, it is not conducive to its growth, and even if it is planted, it may not survive.

Now this time period is between the beginning of summer and Xiaoman, and it is a good season to plant sweet potato seedlings in most parts of China.

Traditionally, it's summer, and the average daily temperature is in the mid-20s.

This is the case in the north, and even more so in the south, sweet potato seedlings can grow well after transplanting, and will not delay growth and affect development due to low temperature. So, it's time to transplant sweet potato seedlings.

As long as the temperature is suitable, transplanting is "early rather than late", and the late planting time will affect the later yield of sweet potatoes!

What is the right size for transplanting sweet potato seedlings? When the seedlings grow to more than 20 cm, they can be transplanted, and it is best to choose detoxified potato seedlings, which can resist diseases and insects, and improve the survival rate!

Transplanting sweet potato seedlings is better on a sunny day or a rainy day

In Yucheng, Shandong, it rained for two or three days in a row, and it happened that the neighbor bought sweet potato seedlings today, and planted them while the soil was moist and the soil moisture was good.

Therefore, our local old farmers still think that transplanting is better on rainy days, because the soil is moist and it is easier to survive. Even so, you have to water it a little after planting, which can improve the survival rate!

In order to help sweet potatoes grow better and more vigorous, we can also use rural all-purpose ash --- plant ash, the use of plant ash does not need to be detailed, it is a natural and environmentally friendly farm fertilizer, rich in potassium fertilizer, which helps the expansion of sweet potatoes in the later stage, and is the guarantee of high yield.

Sweet potato seedlings are planted in the morning or in the afternoon

It is best to plant sweet potato seedlings after four or five o'clock in the afternoon during the day。If you plant sweet potato seedlings in the morning, it is easy to sunburn the sweet potato seedlings if it is a sunny day, and the survival rate of sweet potatoes will decrease.

Moreover, at 5 o'clock in the afternoon, the sun is about to set, the temperature drops, and the best temperature for sweet potatoes to survive is 21 degreesSo it's good to plant in the afternoon

TotalIn other words, sweet potatoes are very adaptable crops, as long as they are in the right temperature and environment for growth, they can grow very vigorously. Transplanting is better on rainy days, so the survival rate is higher!

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.

Sweet potato preservation tips:

1. Indoor storage.

Sweet potatoes are afraid of cold, and when the temperature is too low, they will be frozen, forming a hard core, which is not cooked or boiled; 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. If you don't have a wooden box, you should put a wooden board on the place where the sweet potatoes are stacked and against the wall to prevent moisture.

2. Slice drying and preservation.

Slice the sweet potatoes and dry them on the house or in a sunny, dry and ventilated place. 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 are kept in the cellar.

It needs to be dug out of the ground before the frost falls. Try not to damage its epidermis when digging, and if there is a broken epidermis, it should be classified and preserved. Whole sweet potatoes are stored in a pre-dug cellar.

The soil around the cellar is best made of loess, with a depth of about 3-5 meters. Put the sweet potatoes neatly in the cellar, finally sprinkle some preservatives, cover the lid, and wait for the spring temperature to rise, at noon on the windless and warm weather, when the temperature exceeds 12, ventilate the potato cellar for a short time, which can reduce the concentration of miscellaneous bacteria in the cellar, prevent excessive humidity in the cellar, cause mildew at the damage to the skin of the potato pieces, and affect the appearance quality of the goods. Once you notice that the temperature of the cellar has dropped, immediately cover the vents to keep warm.

The skin is damaged and easy to rot, so it needs to be spread out and preserved, and eaten in time or made into dried sweet potatoes.

When I was a child, I grew up in the countryside, and my family grew sweet potatoes. By the time the sweet potatoes were harvested, it was already getting cold. Sweet potatoes are also afraid of freezing, and frozen sweet potatoes will become bad and bitter and inedible.

Generally, we dig a deep cellar for one or two people at home to store sweet potatoes in the ground, and the cellar mouth can be covered with a lid to keep warm. But sweet potatoes are also afraid of overheating, which will also spoil and cannot be eaten, this is a technical job.