When harvesting sweet potatoes, it was found that many potato nuggets were seriously rotten, what ca

I think it's because you're watering too much. You should do proper watering and fertilization.

It is because the soil is not breathable that too much water will also cause this wilting during the growth of plants, and it is even possible that there is a pest that affects the root growth.

It can be due to a variety of reasons. For example, 1Too much moisture.

If it rains for a long time, the stalks of sweet potatoes will be soaked in water for a long time and corroded by rainwater. 2.The pest infestation is severe.

Sweet potatoes are sweet and prone to insect infestations, and if there are obvious traces of insects around, they are usually root rot caused by insect pests. 3.Root rot fungus.

Root rot fungus invading sweet potatoes is also a common cause of soft rot of sweet potato roots.

It may be due to insect infestation, these insects have absorbed all the nutrients, resulting in sweet potatoes without nutrients, which will lead to wilt.

Because it was affected by some pests and diseases, and it was not watered and weeded in time, it would lead to wilting.

The causes of sweet potato root rot wilt include lack of nutrients in sweet potatoes, insect pests, root rot, water rot, and daily weeding that hurts sweet potato roots.

Sweet potato root rot is caused by too much moisture in the ground when planting sweet potatoes, and sweet potatoes are inherently sweet and attract bugs.

Because the air in the cellar is too cold and humid, the sweet potatoes will rot inside, and the control measures are to maintain a high temperature, which can be monitored by a thermometer.

This can happen when the environment is too humid, not cool enough, often not ventilated, and often not well ventilated. It is necessary to inspect the sweet potatoes in time, to strengthen ventilation, and to remove the problematic parts at any time.

The temperature is not grasped well, the rotten sweet potatoes are not treated in time, no attention is paid to cleanliness and hygiene, no attention is paid to the problem of humidity, no attention is paid to daily maintenance work, it must be kept dry, and it must be kept low.

It's the season to eat sweet potatoes again, but how to keep the sweet potatoes brought back from my hometown for a long time? Try this trick and you can eat Yuanling to fresh and delicious sweet potatoes for a long time.

Generally, there is a lot of water, insects, and the other is soil-borne disease infection and rot, if it is a large amount of water, you can drain the water, and the latter two situations can avoid trouble, Nian Kai needs to prevent high and slow treatment, or it will not spread infection, you can use Root Protector-Bacillus subtilis to dilute it with water to do the root irrigation mold, so that it can be controlled in a few days.

I didn't know that sweet potatoes rotted when they didn't fall in the ground?

The sweet potatoes are rotten and cracked, what is the situation?

If the temperature drops suddenly and the harvest is not timely, the sweet potatoes will suffer from frostbite and frost damage, resulting in rot due to frost damage, affecting the harvest quality and yield. Prevention and control measures: Sweet potatoes should be harvested in a timely manner.

To determine the harvest time according to the weather and temperature, you can also look at the growth of sweet potato vines, which begin to turn yellow and dry up, and the harvest time is almost the same.

Like some people in our village, they use a little open space in front of the house and behind the house to grow sweet potatoes every year.

However, when harvesting sweet potatoes, it is always found that some potato pieces have rotted, and even some are more serious, and they will be thrown away directly, which is a pity and has caused a lot of losses to hard-working farmers.

What causes the tubers to rot

First, before harvestingOur sweet potato fields are soaked with too much water, resulting in stagnant water, which is not discharged in time.

As a result, the sweet potato stems in the soil are soaked for a long time and gradually rot, which will lead to the severe rot mentioned later, affecting the yield and quality.

[Prevention and control measures].

Before the sweet potatoes are harvested, we can no longer water them, and we must keep the ground dry, easy to harvest, and easy to store. Even if there is stagnant water, it should be drained in time to avoid soaking in stagnant water and rotting of potato pieces.

SectionSecond, the sweet potato tuber is rotten, and it is also possible to suffer from sweet potato stem rot。Basically, there are black-brown spots on the edge of the contact between the soil and the stem, and when you peel it off, you will find that the rhizome is rotten, and then the tuber is rotten.

Underground pests are vegetarian, ready-made sweet potatoes, sweet and fragrant, the wounds and insect eyes left after being bitten by insects are soaked in water before they heal, and the results can be imagined, slowly rotting and deteriorating.

[Prevention and control measures].

This is the common pest and disease of sweet potato, once found, it must be timely, otherwise the consequences are very serious. In order to quickly treat the abrasion of the grandson, drug control has to be mentioned.

SectionThird, if the temperature drops suddenly and the harvest is not timely, the sweet potatoes will suffer from frostbite and frostbiteCause rot due to frost damage, affecting the quality and yield of harvesting.

[Prevention and control measures].

Sweet potatoes should be harvested in time. To determine the harvest time according to the weather and temperature, you can also look at the growth of the red stool potato vines, which begin to turn yellow and dry up, and the harvest time is about the same.

Fourth, try not to hurt the sweet potato pieces during harvesting, as the broken potato pieces are prone to rot.

There are three main reasons for the rot of sweet potatoes during the harvest period, one is that soft rot occurs in sweet potatoes, the second is that sweet potatoes are infected with black spot disease, and the third is that sweet potatoes are affected by frost damage. Let's analyze it in detail with you.

Soft rot is one of the most common diseases of sweet potatoes, a fungal infectious disease that is highly contagious. Especially during the harvest and storage stages of sweet potatoes, soft rot is most likely to occur. After the occurrence of soft rot, sweet potatoes will appear gray-white mildew, and the color of mildew will gradually turn dark black with the aggravation of the disease, showing a water-soaked shape.

In the later stage, the affected area will gradually expand, and gray-black mold mycelium will appear, and the whole sweet potato will appear soft and rancid.

Solution: Sweet potato soft rot, we must do a good job in prevention and control. First of all, stop watering about two weeks before the harvest of sweet potatoes to avoid the moisture content of sweet potato stems being too high and affecting the later storage.

Secondly, the harvesting time should be grasped well, and the harvest should be carried out on a sunny day, and try not to cause trauma to the potato pieces to avoid wound infection. Sweet potato nuggets should be harvested in the process of selection, disinfection, wound drying and healing, etc., to avoid soft rot during the storage of potato nuggets. In the process of sweet potato storage, it is necessary to pay attention to the temperature and humidity of the sweet potato cellar, and at the same time pay attention to the disinfection of the sweet potato cellar.

Sweet potato black spot is also one of the important diseases that endanger the growth of sweet potato, and the whole growth process of sweet potato, including the later storage stage, is easy to cause black spot damage. After the onset of sweet potato black spot disease, it first manifested on the leaves, with yellow spots on the leaves and gray-white mold layers on the back of the leaves. In the later stage of the disease, the underground stems of sweet potatoes will rot and be soft muddy, and gray-black mold will appear in the affected parts.

Solution: Sweet potato black spot disease should be prevented, selected before sowing, minimized washing, reasonable crop rotation, cultivated strong seedlings, and improved the disease resistance of sweet potato seedlings. In addition, it is necessary to do a good job of disinfection and spray 50% carbendazim before seedlings.

1000 times solution of wettable powder, soaking treatment before sowing. Once a disease is found, spray it with 50% carbendazim 1000 to 2000 times solution in a timely manner, or spray with 50% tobuzin wettable powder 700 times solution. The spraying frequency is once every other week, about three times in a row.

Sweet potatoes have a thin skin and a high moisture content. When the growing temperature is below 9 degrees Celsius for a long time.

Potato nuggets are susceptible to physiological frost damage. After frost damage, the normal metabolism of potato nuggets will be seriously disturbed, resulting in a decrease in the resistance of sweet potatoes and susceptibility to pathogens, resulting in large surface rotting of sweet potatoes.

Solution: For the problem of low temperature frost damage, the first thing to do is to harvest in a timely manner, autumn sweet potatoes should be harvested before the beginning of winter, and summer sown sweet potatoes should be harvested before frost. When the temperature drops to around 18 degrees, the harvest can begin.

Pay attention to avoid trauma during the harvesting of sweet potatoes, and after harvesting, they should be properly dried and disinfected before storage, and the temperature in the cellar should be controlled during storage to avoid freezing damage to sweet potatoes.

It may be that there is a lot of water in the soil, the sweet potatoes are soaked in the water and rot, or there may be insects. The correct way to control it is to reduce watering and spray the plant with insecticides immediately if you notice bugs on the leaves.

It is very likely that the potato nuggets will be severely rotten when they are placed in a humid environment, so it is best to keep the potato nuggets in a cool, dry environment without contact with moisture.

When planting green beans in early spring, we must choose cold-resistant, good disease resistance, high performance, high-quality varieties two, the choice of soil green beans do not need much good land, whether marl or sand can grow well, as long as it can be well drained and irrigated in the planting field, but the fertile soil can get high yield production three, seedling 1, green beans have strong cold resistance, do not use high temperature environment, the temperature is more than 25, will affect the effect of flower bud differentiation, transplanted to the greenhouse planting after the greenhouse seedlings, Small shed planting can be done around mid-February, firstly, the seedbed is thinned with a width of 1,2 m, while the depth of the trough is 20 cm, the length of the compartment can be determined by the amount of sowing, watering sufficiently, then smooth the top with a sand board, using a nylon thread to become 9 cm wide, then cut into a square of 9,9, choose a 1, 2 cm square with a knife to pick out the depth of the nest.

The reasons why sweet potatoes rot in the ground are as follows:

1.There was too much rain and the ground was too wet. In the process of growing sweet potatoes, there is basically no need to water sweet potatoes.

Especially before harvesting, you should not water sweet potatoes. If it rains, and the rain is too heavy, it is necessary to drain the sweet potato fields in a timely manner. If there is too much water stored in the field, the roots of the sweet potato will not be able to breathe well, the nutrients will not be delivered, and the hot weather will cause bacterial infection to cause the sweet potato to rot and mold.

Too much water in the field is the main cause of rotting and moldy sweet potatoes.

2.Pest. Another reason why sweet potatoes are moldy and rotten is that they are attacked by pests and diseases. Especially stem nematodes and grubs.

These two subsurface pests are the most severe. Pests bite from the outside of sweet potatoes and then bury a small hole, and if the ground is too wet, the sweet potatoes will rot in the ground. However, the rot caused by pests and diseases is very small and relatively light.

Sweet potatoes have a sweet taste and attract some small insects to eat. Sweet potatoes can also get soft rot, and they will freeze if they are too cold.