Why did that tomato I bought at a large supermarket rot the next day when I came back?

In fact, tomatoes are fresh vegetables, and they need to be eaten in time after picking, otherwise they are easy to spoil. This is determined by the nature of tomatoes, which are not easy to store for a long time. So, this isn't what you bought in a hypermarket, or whatever.

Of course, it could also be that the tomatoes you bought were not fresh enough, so they went bad the next day.

If it is a fresh tomato, pay attention to preservation, it can also be stored for a longer time. Let's take a look at how to store it. Store at room temperature

Place the tomatoes face down and store at room temperature. Put the tomatoes in a plastic bag and pour water to preserve: Put the tomatoes in a plastic bag, then put the bottom half of the bag in cold water, remove the air from the bag and tie it.

It is not recommended to put them in the refrigerator: because tomatoes may become soft and rotten even faster at low temperatures.

At the same time, you should pay attention to a few points when buying, and do not buy inferior ones. 1. First of all, look at the color, the ripe tomato itself should be red, the more red and bright the color, the more ripe the tomato. Many tomatoes in the market are not very ripe because they are too ripe and difficult to preserve, but generally tomatoes that grow normally should have a very uniform color.

But if the green color of the tomatoes is not evenly distributed, then do not buy it. 2. Secondly, looking at the shape, the shape of the tomatoes obtained by natural ripening is generally more beautiful, more rounded, and relatively soft to the touch. If the tomatoes have sharp corners and are hard to the touch, they are generally unripe.

3. You can also look at the weight, there is no internal moisture content of ripe tomatoes.

It's relatively small, and even if it's red, the weight is relatively light. Ripe tomatoes, on the other hand, are much heavier, have more moisture inside, and taste better. 4. Don't buy tomatoes with black stems.

Generally, naturally ripe tomatoes have shiny skin, uneven color distribution, and red and green fruit pedicles. Ripe tomatoes, on the other hand, have a dark skin and uniform color, but the fruit pedicles (i.e., where the tomatoes are recessed) are blackened. 5. Don't buy tomatoes that are hard to the touch, since any tomato with a hard skin to the touch can be said to be unripe, no matter how bright its color is, it is also a ripe tomato.

Why did that tomato I bought at a large supermarket rot the next day when I came back? Personally, I think that tomatoes are used to keep them fresh, so they are rotten, and now the vegetables bought in the supermarket are rotten at home, which is a matter of chemical fertilizers and pesticides.

There are bruises during transportation, and then the tomatoes will rot quickly.

That means it's not new. It doesn't look rotten when it's on the edge of rotting, but it's actually spoiled inside.

That's because tomatoes are already going bad, it's not a question of where to buy them.

1. High temperature.

If tomatoes are planted in summer, if they crack, they may encounter drought and high temperature during the tomato expansion period, or during the expansion period, the water supply is suddenly too large, resulting in the rapid expansion of the tomato fruit and cracking. In addition, in the case of high temperature, it is not conducive to the differentiation of tomato flower buds, and deformed flowers will occur, and poor pollination will also easily cause the top of tomato to crack.

2. Lack of nutrients. When tomatoes crack, we can consider whether it is caused by a lack of nutrients, and this deficiency is not necessarily due to the soil, but also because of the high temperature, the absorption capacity of the root system is slow, and the plant is prone to cracking due to malnutrition. In addition, if the amount of nitrogen fertilizer is too large, it is also easy to affect the absorption of calcium and boron by plants.

3. Variety-related.

Another is related to the quality of tomatoes, for example, some tomato varieties have thin skins and poor adaptability to the environment, so tomatoes are prone to cracking.

Nongfu world's tomato water-soluble fertilizer, made of high-quality raw materials, especially added chelating trace elements, can improve the soil environment, increase ground temperature, promote the absorption of nutrients by the fruit, make the fruit grow and grow, the fruit expands, the dry matter increases, the fruit size is improved, the fruit type is full, the coloring is bright, the taste is increased, the early maturity is promoted, the peel is elastic, not cracked, and the fruit can be listed in advance.

Not necessarily. As the tomatoes ripen and the cells slowly dehydrate, the tomatoes will become softer and softer as the water slowly penetrates, and the water penetration of the tomatoes will be accelerated under high temperatures. It is possible that the tomatoes have become soft because they have been stored improperly or left for too long, and they are not necessarily bad.

Is it OK to eat tomatoes cut green when they are cut: It is not recommended to eat them. The fact that the tomato is green after cutting is a sign that the tomato is not fully ripe, and the unripe tomato contains a certain amount of solanine.

Among them, solanine contains a certain toxicity, when excessive intake of solanine will affect the normal physiological activities of human tissues and organs, resulting in various symptoms of physical discomfort, and this substance can not be completely eliminated even after high temperature, so it is recommended that it is best not to eat unripe tomatoes.

The tomatoes will be rotten, which may be caused by too high soil moisture and too high air humidity, if the tomatoes produce diseases such as late blight, gray mold and sleepy cotton rot, then it will also be rotten, when planting tomatoes, you need to first blanch the seeds or soak the seeds with pesticides, and usually do a good job in the management of water and fertilizer to reduce the probability of tomatoes getting sick and rotting.

1. The humidity is too high

When the tomatoes are planted and rotten, it may be caused by excessive humidity, and when it is rainy for a long time, there will be too much water in the soil, and the air humidity will be relatively high, and the tomatoes can not evaporate water well, and they will eventually rot, so the tomatoes need to be drained and ventilated in time during the rainy season.

2. Caused by disease

The planted tomatoes will rot, and there is another reason for the disease, such as late blight, gray mold and cotton rot, etc., which will cause tomatoes to rot, and this phenomenon will occur, it is necessary to remove the rotten tomatoes in time, and then use drugs to spray and control them, so that tomatoes can grow healthily.

3. Seed treatment

When planting tomatoes, if you want to prevent it from rotting, then you need to treat its seeds before planting, it is best to mix seeds with hot water or soak the seeds with pesticides, which can reduce the probability of tomatoes producing diseases, and when planting tomatoes, you also need to disinfect the soil first, so as not to breed a large number of pathogens in the soil.

4. Maintenance management

When daily maintenance of tomatoes, it is necessary to let them have a warm, ventilated and sunny environment, and in the tomato growth period, it is necessary to apply water and fertilizer reasonably to promote its vigorous growth, so that the disease resistance of tomatoes will be improved, and the probability of disease and decay can be reduced a lot.

1. Excessive water: In continuous rainy weather, drain the water in time and strengthen ventilation. 2. Infectious diseases:

Bacterial infection will cause tomatoes to rot the bottom, so it is necessary to spray Huiyunxian in time to sprinkle Phytophthofen solution. 3. Calcium deficiency: The lack of calcium will cause oxalic acid to harm the plant, and calcium fertilizer needs to be applied to it.

4. Prevention of rotting: Soak the tomato seeds in chlorothalonil solution.

1. Too much water

Overwatering or continuous rainy weather will lead to a large amount of water accumulation in the soil, if not discharged in time, it will cause the bottom of the tomatoes to rot, and it is necessary to loosen the soil in time and strengthen ventilation to make the water evaporate quickly.

2. Infectious diseases:

Tomatoes are easy to encounter bacterial infection during the growth process, which leads to late blight, cotton rot and other diseases, so it is necessary to clean up the diseased plants in time, and then spray the plants with phytophthora and methamalanine manganese-zinc wettable powder, and shoot the sterilization and sterilization before shooting.

3. Caused by calcium deficiency

Tomatoes produce oxalic acid during photosynthesis and respiration, and calcium can reduce its harm, and the lack of calcium in the plant will cause bottom rot, and the diluted calcium fertilizer can be applied to tomatoes to control the amount of nitrogen fertilizer.

4. Prevent decay

In order to effectively prevent the bottom of tomatoes from rotting, the seeds need to be treated before planting, which can be soaked in chlorothalonil solution for a day to enhance their disease resistance, and then the planting soil is disinfected to prevent the growth of bacteria from the source.

Tomato rot fruit is mainly caused by physiological diseases and pests and diseases, and there are several reasons for rotten fruit:

1) Rotten fruit caused by umbilical rot. This is a physiological disease, mainly due to the lack of water in the early stage, and the lack of water in the later stage, therefore, when watering, it is necessary to water with small water frequently, and carry out it in the morning and evening, and avoid flood irrigation. During the fruiting period, it was sprayed with superphosphate solution, or fertile leaf foliar fertilizer, and sprayed once every 15 days from the flowering stage, for a total of 2-3 sprays.

2) Rotten fruit caused by cotton blight. This is mainly harmful to unripe fruits, which usually occur when the temperature is too high or after heavy rainfall. Prevention and control method: spray with wettable powder.

3) Rotten fruit caused by circular striation. This happens mainly on green fruits. To prevent and control fruit rot caused by this reason, 75% chlorothalonil wettable powder can be sprayed with water.

4) Rotten fruit caused by anthrax. This mostly happens on ripe fruits. Prevention and control methods: first, the implementation of crop rotation and stubble; the second is to carry out seed disinfection; Third, after 2-3 weeks of colonization, spray mancozeb twice every 10 days.

Hello! The problem with your greenhouse tomatoes may be tomato anthracnose Tomato anthracnose is a more common disease of tomatoes, anthracnose bacteria infect before fruit coloring, latent to coloring after the disease, the initial transparent small spots, and then the lesions gradually expand and become black, slightly concave, with black dots on it, under wet conditions, the diseased part will also secrete red mucus, and finally the fruit rots and falls off. It can also cause fruit rot and cause losses during storage, transportation and sales in the middle and late stages of growth and after harvest.

Governance:1Strengthen the management of cultivation and disease control.

1) After harvesting, do a good job of clearing the garden and destroy the sick and disabled;

2) Deep turning of the soil, combined with land preparation and application of sufficient amount of high-quality organic bottom fertilizer, high furrow and deep furrow planting;

3) Tomato is a crop with a long growth period, which should be carefully managed, pruned, pruned, tied vines in time, weeded frequently to facilitate ventilation and humidity reduction in the field, timely harvest during the fruit maturity period, improve the quality of harvesting, and destroy the diseased fruit out of the field in time.

2.Pesticide prevention and control can be used for a preventive spraying in the young fruit stage.

1) Prevention: 16-17 kg of water per box, evenly sprayed 450-550m, can improve immunity and avoid fungal infection.

2), **: 16-18 kg of water per box, spray 300-350m, spray both positive and negative, eliminate yellow spots for the best effect.

Tomato fruit rot at the fruiting stage is mainly caused by three diseases, and the prevention and control should be strengthened.

1. Rotten fruit tomatoes caused by soft rot.

Soft rot is a bacterial disease that mainly infects stems and fruits. When the fruit is diseased, the skin is intact and bright, the flesh is rotten and soft, and after cracking, it emits a foul odor, and after drying, it becomes a white and stiff fruit.

Prevention and control methods: avoid pruning and pruning in rainy days or when the dew is not dry, promote wound healing as soon as possible, and prevent the invasion of germs;

timely control of fruit borer pests such as cotton bollworm, etc.; 3.Before or at the beginning of the disease, spray with 72% agricultural streptomycin 4000 times, or 70% dixone 1000 times, etc., every 8 10 days, and the number of sprays depends on the condition.

2. Rotten fruit caused by brown rot.

This disease is a fungal disease, mainly harming near-ripe fruits, mostly producing light brown lesions from the shoulder of the fruit to the top of the fruit, forming concentric ring spots in the later stage, the color becomes dark brown, the surface is smooth and does not soften, and the disease grows gray-white mold layer when the humidity is high.

Prevention and control methods: remove diseased leaves and fruits in time, and remove the remains of diseased plants on the ground;

Tomatoes cultivated in plastic greenhouses or greenhouses should strengthen temperature and humidity management, and release air and moisture in a timely manner.

At the beginning of the disease, spray with 25% Ruixin mold 800 1000 times, spray once every 7 8 days, and spray 2 3 times in a row.

Listening to what you described, it is very likely that you have spot disease, it may be that the weather on your side is often rainy, the humidity is too high, and when you first start to get spots, you should remove the spots in time, otherwise it will only get more and more serious, resulting in the final rotten fruit! If the rotten fruit is not serious now, it is recommended to spray some fungicides for the rotten fruit in time!

When tomatoes are almost ripe, the bottom of the fruit will become moldy or even rotten for the following reasons:

1. Tomato rot refers to the phenomenon of tomato fruit rotting, which is an important problem in the production of open-field tomatoes. In years when the rainy season comes early and rains a lot, tomatoes rot a lot.

2. Fruit rot caused by bacterial infection, mainly late blight, cotton blight, cotton rot, soft rot, and a small number of anthracnose, solid rot, etc., should distinguish the symptoms of fruit rot caused by these diseases.

Tomato navel rot.

Symptoms It occurs during the young fruit stage when the fruit is table tennis ball to the size of an egg, and sometimes when the fruit is about to turn red, it opens.

The top of the fruit (umbilicus) is dark green or dark gray in the form of water immersion, and it quickly becomes dark brown as the disease progresses, and the flesh loses water and the top.

The part is flattened or concave, the lesions sometimes have concentric wheel lines, the peel and flesh are flexible, generally not rotten, the lesions are mostly round, sometimes the lesions are irregular with smooth edges due to the irregular shape of the fruit, and the lesions are often rotted by some fungi when the air is humid.

Raw, black mold grows at the onset of the disease.

** It is generally accepted that the underlying cause of the disease is calcium deficiency. The soil is low in salt base and acidic.

Chemical, especially in sandy soils, the calcium supply is insufficient. On salinized soils, although the soil calcium content is high, it is possible because of the soil.

The high concentration of soluble salts hinders the absorption of calcium by the roots, and calcium deficiency will also occur. In addition, too much ammonium nitrogen or potassium fertilizer is applied.

Hinders the absorption of calcium by the plant. When the soil is dry, the air is dry, and the continuous high temperature is prone to a large number of umbilical rot fruits.

Another view is that the main cause of the disease is water imbalance. Due to the large amount of transpiration, the original water in the fruit is taken away by the leaves, resulting in a large amount of water loss and necrosis of the pulp, resulting in disease.

Prevention and control methods. Scientific fertilization On the sandy soil, each stubble should be applied more decomposed chicken manure, if the soil is acidified.

For example, a certain amount of lime should be applied, and a large amount of ammonium nitrogen fertilizer and potassium fertilizer should be applied at one time.

Balanced water supply Soil moisture can not change drastically, otherwise it is easy to cause umbilical rot and fruit cracking, in rainy years, it is necessary to water more appropriately to prevent soil moisture from rising suddenly when it rains. Drain water in time after rain to prevent water accumulation in the field for a long time.

Foliar calcium supplementation should be based on prevention, after entering the fruiting period, start to spray calcium fertilizer such as Green Fenwei No. 3 continuously, once every 7 10 days, the effect is very good, can avoid the occurrence of umbilical rot. Spraying calcium fertilizer after the onset of the disease is less effective. It can also be sprayed.

Calcium chloride or calcium nitrate aqueous solution, these two calcium fertilizers are inexpensive, but they are not easy to be absorbed by plants, and they can be used for disease prevention and treatment.

The effect is relatively poor.