Why do indoor onions rot in winter?

1. Overwatering

When planting onions indoors in winter, if you water too much or too often, the soil drainage and water permeability of the planting will be poor, which will lead to a large amount of water accumulation in the roots, and the roots can not absorb all of them, thus causing wet and rotten roots. The frequency of watering can be reduced, the soil can be loosened in time to discharge the stagnant water, and the rotten roots should be treated with fungicides if necessary.

2. Poor ventilation

If it is kept indoors in winter, if the ventilation is not good and the growing environment is too hot and impermeable, it will also lead to the failure of the roots to grow normally, resulting in the problem of rotten roots. Onions can be kept in a well-ventilated environment, maintain air circulation, carry out gas exchange, and properly prune the dense leaves on the onions to increase wind permeability.

3. The temperature is too high

Green onions prefer cool climates, and if the indoor temperature is high, it may affect the growth of green onions, which can lead to poor growth, root problems, and root rot. If the indoor temperature is high, you can ventilate it at noon to cool down, or you can move it to the balcony to make the temperature suitable for growth.

Fourth, infected diseases

The root rot of the green onion may be due to the growth environment of the breeding bacteria, which leads to root infection, which will rot the roots and affect the growth. The green onions with diseased and rotten roots are dug up and burned, the soil is disinfected and sterilized, and then replanted and cultivated.

The tips for planting onions without rotting the roots are as follows:

If you want to plant onions without rotting roots, you can take the form of rotation planting, that is, rotate crops every three years to ensure that the nutrients in the soil are sufficient, and you can also choose loose soil and good drainage soil as the base soil when planting, and you can also strictly control the amount of watering in the process of maintenance to avoid water accumulation of plants.

The main reason for planting onion and rotten roots is heavy planting, which can be planted in rotation, generally once every three years, so as to avoid the phenomenon of rotten roots.

There are many reasons for the rotten roots of green onions, mainly including: 1. Continuous cropping and heavy cropping. 2. There are maggots at the roots. 3. Pollution of water source for watering onions. 4. Herbicide damage. 5. Stagnant water roots.

Symptomatic **1, if the stubble is heavy, use rotation with other crops (note that it cannot be rotated with garlic and leeks of the lily family at the same time). 2. If the root maggot is harmful, use the method provided on the first floor to control it with insecticides such as phosphine granules and chlorpyrifos particles. 3. If the water source is polluted, then use clean water to water the ground.

4. If herbicides are harmful, choose safe herbicides to avoid pesticide damage. There is no special way to strengthen water and fertilizer management and promote seedlings to be strong. 5. If the roots are soaked due to stagnant water, it is necessary to drain the stagnant water in time after the rain.

FYI!

There are several reasons for the phenomenon of rotten roots of green onions, one is that the root rot of green onions causes rotten roots, which causes rotten roots of green onions, and the second is that root maggot pests will form wormholes in the roots of green onions, which leads to rotten roots, and third, green onions will produce roots, which will cause rotten roots, these reasons are the main reasons for rotten roots of green onions, and they are also high-frequency symptoms of rotten roots of green onions, therefore, we need to take measures to deal with these rotten root behaviors, so as to make green onions grow better.

For the different rotten root behaviors of green onions, we must take corresponding measures to deal with these rotten roots, first of all, if it is root rot caused by root rot, we can use methyl frost manganese zinc liquid or frost urea cyanide solution to water the roots, and then seal it with soil, after a period of time, the medicine will take effect, and after the effect, it will be the best rotten roots, and secondly, if the root maggots cause rotten roots, you can smear the roots with phoxanthion solution and methyl isomeron solution, which can quickly eliminate the root maggots and protect the green onions. Finally, if there is a root soaking behavior, it is necessary to loosen the soil in time, prohibit large water irrigation, increase soil permeability, and then manage it normally.

Usually when cultivating green onions, you can do some anti-rotten root behaviors in advance, such as choosing the soil to choose the permeable soil, and add some nutrient fertilizers, so as to ensure that the green onions grow when the nutrients are sufficient, the water is sufficient, so that you can avoid a lot of rotten root behaviors, the cultivated green onions should be regularly added with water, adding water can make the green onions have sufficient moisture, grow more powerful, look fresher, more beautiful, and taste better, therefore, it is necessary to prevent and control the green onions in time.

If the green onion appears after the root rot phenomenon, we should take measures to treat it in time, we can add some liquid drugs to prevent and control the root rot, which is the most direct and effective way, you can also often go to loosen the soil to ensure the nutrients of the green onion, and it can also be used to prevent and control some root rot phenomenon, therefore, different measures need to be taken for different root rotten behaviors.

The rotten roots of green onions are mainly caused by the following reasons, the first is the problem of soil; second, there are pests and diseases; The third is improper field management. In fact, if you carefully observe the symptoms, you can still find the cause of the disease and the solution.

The appearance of rotten roots is mainly caused by the bite of pests, and the main way to prevent it is to master the planting time.

In recent years, the green onion is relatively stable, the yield of green onions is higher, the planting income is not bad, farmers plant green onions a lot of farmer friends, recently, there are many farmer friends private messages, reflecting their green onions planted this year, different degrees of rotten root phenomenon. I don't know what causes it, how to prevent it? Below, I will introduce the reasons for the rotten roots of green onions to you as follows, I hope it will be helpful to you.

Friends who grow vegetables should know that most vegetables are afraid of heavy stubble, green onions are no exception, the key reason for the root rot of green onions is mostly related to heavy stubble, due to continuous planting for many years, the increase of pathogenic bacteria in the soil, it is easy to cause the root of green onions to rot and die.

Therefore, in order to effectively solve the problem of rotten roots of green onions, the conditional implementation of stubble planting, generally once every three years can be rotated. In addition, there are three other factors that can also cause green onions to rot the roots.

The root rot of green onions is due to the fact that the plant is infected with root rot, especially if it is planted in heavy crops, and the pathogenic bacteria in the soil increase, which is more susceptible to this symptom. The root rot prevention of green onions is very easy, but it is very difficult, generally before planting, it is necessary to disinfect and sterilize, and after getting sick, you can try it with pesticides to irrigate the roots.

First, the cause of rotten roots.

The main reason for root rot is root rot. Most of the plants affected by root rot are planted in heavy stubble, and the land where crops are planted for many years has not been sterilized and disinfected, if the drainage is not smooth in rainy days or the breathability and drainage performance of the soil is affected, the external environment faced by the roots is relatively poor, the antibacterial ability is weak, and it is easy to be infected.

Second, the solution.

The green onion seedlings are buried deep when they are planted, and the roots are rooted in the soil after growth, and it is very difficult to irrigate after getting sick, and the effect is not good afterwards, so prevention in advance is the right solution.

Before planting, the land should be sterilized and disinfected, and the biological fertilizer can be diluted with water and poured in the soil, which can effectively prevent and control the spread of germs; Fungicidal pesticides can also be used in the field ditch, such as fungine and so on. After sterilization, you can plant and cultivate soil, if you find rotten roots in planting, you should dig out the diseased plants, carry out irrigation treatment, and then apply rooting agent to replant.

If such a phenomenon occurs, then it may be because of the virus in the green onion, so if you want this phenomenon, hurry up, and go to the market to buy the corresponding medicine to fight.

The main reason for root rot is root rot. Most of the plants affected by root rot are planted in heavy stubble, and the land where crops are planted for many years has not been sterilized and disinfected, if the drainage is not smooth in rainy days or the breathability and drainage performance of the soil is affected, the external environment faced by the roots is relatively poor, the antibacterial ability is weak, and it is easy to be infected.

It may be due to too much water, or not doing a good job of drainage, or it may be due to insect infestation, which can lead to root rot.

1. Root irrigation treatment.

If the onion has rotten roots, it may be that the plant is suffering from root rot, and the onion can be irrigated at this time. First of all, you can go to the market to buy the first root rot agent or beneficial bacterial fertilizer, and then mix it with water evenly, and use the root irrigation tool to directly provide the agent or fertilizer to the root of the onion to help the plant resume growth.

2. Dig out the diseased plants.

If the root rot is severe, the diseased plants need to be dug out of the soil and burned, and then sprinkled with quicklime on the area where the diseased plants are planted to destroy the bacteria in the soil.

3. Spray the agent.

If the symptoms of root rot are mild, you can spray carbendazim solution on the plant to eliminate the bacteria on the plant, or you can water chlorothalonil solution to the soil to eliminate the germs in the soil so that the green onion can resume normal growth. In the process of using the agent, it is necessary to pay attention to the concentration of the agent to avoid the damage of the onion.

4. Later maintenance.

In the later stage of onion maintenance, it is necessary to water it with mineral-rich natural water to soak all the soil, and it can also provide well-rotted farmhouse fertilizer for the onion to improve the growth rate of the plant. In order to avoid root rot on green onions, in the process of planting, it is necessary to choose rotation soil for planting, and before planting, it is also necessary to prepare the land and fertilize.

If the shallots are rotten, then cut off their rotten roots, and then let them dry for two days before replanting them in that kind of good soil. To sterilize it, expose the soil to the sun.

There are several main reasons for the rotten roots of green onions:1. If there is too much water, the formation of water in the soil layer will lead to the phenomenon that the root system of the plant will have difficulty breathing and thus rot.

2. When the soil is compacted or clay, it will affect the normal growth of the plant, resulting in rotten roots and yellow leaves.

3. When too much fertilization, excess nutrients will lead to root burning and root rot.

4. Abnormal temperature will also lead to rot of onion roots.

The rotten roots of the planted onions are watered too much.

Because the green onion is frozen and squeezed, let the green onion be moist and soft after thawing.

Green onions are not afraid of freezing, green onions are very cold-resistant, will not be frost damaged at a low temperature of -10, and can withstand a low temperature of -30 in the open field protected by snow. However, the green onions should not be moved at will in winter.

When the temperature drops below 0, the water in the cell space of the green onion freezes, but the cell wall is not damaged and unharmed, as long as it is not touched, after the temperature rises above 0, the ice crystals in the cell space of the green onion can slowly melt and regain vitality.

On the contrary, if the green onion is moved at will after being frozen, due to artificial mechanical extrusion, the ice crystals in the intercellular space will squeeze the cell wall, and after the temperature rises, the cell fluid will seep out, making the green onion sticky and rotten.