How to prevent low temperature frost damage when Chinese cabbage is planted in rural areas?

In winter, the temperature is very low, and there will be a lot of cold air at this time, and when the cold air is brought, it is estimated that many vegetable farmers will be caught off guard, because these farmers may have been busy for more than half a year, and the vegetables were frostbitten by a snowfall. When planting Chinese cabbage in rural areas, if you want to prevent low temperature frost damage in winter, you should strengthen protective measures and heat up in advance before the cold snap comes. <>

If the temperature is lower than 10 degrees, the growth rate of Chinese cabbage will slow down a lot, once the temperature is lower than 5 degrees, Chinese cabbage will basically not grow. So when the cold wave in the north hits, the temperature will plummet, and the calories of the Chinese cabbage are insufficient at this time, and the yield is not high. For example, in the north, when it comes to about November, that is, two weeks before the Chinese cabbage harvest, there will be a sudden cold snap or sudden snowfall, and the temperature will be lower than 0 degrees, at this time the Chinese cabbage is difficult to adapt, and the water content in the Chinese cabbage is already very high and low temperature will cause the leaves of the Chinese cabbage to freeze, and then the leaves will be frostbitten.

Therefore, if you don't want the Chinese cabbage to be frozen in winter, when the seedlings are transplanted, after the seedlings are completely touched, it is necessary to ensure the ventilation of the seedbed, and when the weather gradually warms, the amount of ventilation should be increased, and the seedlings should be trained at low temperature, so as to improve the cold resistance of the Chinese cabbage seedlings and make the Chinese cabbage better adapt to the low temperature environment. Another way is to physically add some windproof settings to the outside of the cabbage. <>

Before the Korean Dynasty attacked, you can also build a simple coal stove on the seedling greenhouse to temporarily heat up, which can increase the temperature in the greenhouse, but you must not use an open flame, otherwise it is easy to cause a disaster. After the weather comes, when the weather is sunny or at night, when there is no wind, the temperature will drop rapidly, and the surface temperature will be lower than 0 at this time, and it is easy to freeze, so at this time you can water a lot of water on the ground to increase the temperature. In addition, farmers can smoke in the field before the frost occurs, which can also reduce the frost damage of cabbage.

At this time, you can cover the crops with a thin layer of soil, you can choose to plant it in the way of mulching, or you can plant it in a greenhouse, and then you need to supplement organic fertilizer after watering at about 11 o'clock at noon.

When planting Chinese cabbage, build a plastic shed, put a small stove in the plastic shed, you can also spread a layer of plastic film, and you should usually water less.

If you plant cabbage in winter, you can cover it with plastic wrap, which can prevent the cabbage from being frozen and damaged, and you can also plant cabbage in the vegetable greenhouse, and you can also use fertilizer, some fertilizers can have a warming effect on it.

with plastic film. Because my cabbage is covered with a plastic film every winter to prevent freezing.

It can be stored in the cellar, which can not only prevent frost but also increase its preservation time, which is a good benefit.

1. Prepare for the harvest in advance, and strive to complete the harvest before the cold wave arrives.

2. Transported into the cellar as soon as possible, and the unentered cellar should be piled into a large stack, and the roots should be stacked inside and outward, and covered with a thick straw curtain or quilt.

3. Spread out and dry in time after the cold wave. The field has not yet been harvested, and the head of the straw is used to cover it with leaves.

4. If the frozen cabbage can be placed in a cold house or buried soil to make it slowly warm, most of them can still recover.

5. There are 2 or 3 layers of frozen damage, do not turn over, so as not to aggravate mechanical damage, and then trim and dry after natural heating and recovery.

In order to prevent cabbage frost damage, it is necessary to be prepared for prevention, and it is necessary to exercise the low temperature tolerance ability when the cabbage seedlings are young, and at the same time, farmers should carefully observe the weather changes, and keep warm when the weather is coldPay attention to the temperature should not be too high, proper watering can better protect the root system, and proper fertilization should be done before winteringThese measures can help the ground to heat up and prevent the occurrence of cabbage frost damage.

Cabbage is a common ingredient that people often eat, especially for winter after many vegetables enter the off-season, cabbage is a common ingredient on many family tables, and it is cheaper and more liked. However, when the temperature drops in winter, the cabbage will freeze and spoil, and when the temperature is low, it will freeze in the intercellular space of the cabbage, and the temperature will rise and cause rot and deterioration.

If farmers find that the temperature drops quickly and the cabbage has reached maturity, they should pick it in time, perhaps some farmers think that the cabbage has not grown to a certain weight at this time, which will affect the yield and profits, and are reluctant to harvest. If the cabbage is frost damaged, the cabbage will not grow at all, and not picking it will cause damage to the cabbage.

In order to prevent the cabbage from frost damage, it is necessary to carry out ventilation operation when the cabbage is still in the seedling stage, so that the cabbage can accept the low temperature tolerance when it is still in the seedling stage. If the cabbage has been growing in a thermal environment during the seedling stage, it will not be able to adapt to the low temperature environment, as long as the temperature is lowered, it is easy to cause frostbite to all the cabbage seedlings.

Therefore, it is necessary to strengthen protective measures, especially in the north, where the winter temperature is very low, which can easily lead to frostbite of cabbage, and corresponding methods must be taken to reduce the damage. Do not let the seedlings be damaged by the wind at the beginning of planting, and the depth of the soil furrow should be higher than that of the seedlings when transplanting, and cover with mulch to prevent frost damage.

The weather changes very much in winter, we should always pay attention to the weather forecast, when there is a cold snap, we must put the scaffolding for thermal insulation, in other words, to raise the temperature to reduce the occurrence of frost damage to the cabbage seedlings, and pay attention to the high temperature is harmful to the growth of seedlings. Frequent watering in good weather can also raise the ground temperature, and you must protect the roots of the cabbage, otherwise the cabbage will not only suffer frostbite but also will not be able to grow.

If you want to make seedlings grow better in the cold winter, you should fertilize in the early stage, which is not only conducive to growth but also allows the ground temperature to rise.

Cabbage is a very common ingredient, if you want to protect the seedlings of cabbage in winter, you need to take care of farmers to prevent frost damage, in addition to preventing frost damage, we should also pay attention to proper watering and fertilization to prevent root rot, so that farmers have a good harvest.

When planting Chinese cabbage in winter, we must pay attention to prevention, so as not to cause frost damage due to too low temperature. First of all, when the seedlings are fully germinated, the seedbed should be ventilated, so as to exercise the seedlings' tolerance to low temperatures. The frost damage of Chinese cabbage first started from the outer leaves, and gradually extended to the bulbous leaves with the continuous decrease of temperature tolerance and the extension of time, and finally to the cabbage sum in severe cases.

Because the cold wind can accelerate evaporation and take away a lot of heat, the spring frost damage of potatoes is aggravated and difficult to recover. The higher the sugar content of Chinese cabbage, the lower the freezing point.

You can dig a pit in the ground and bury the cabbage in it to effectively prevent the cabbage from freezing, or you can also pull the cabbage into your home.

After entering the winter, we must pay attention to preventing the frost damage of the cabbage, and we should pay attention to reasonable field management, and try to harvest the cabbage before the frost. In this way, we can produce high cherry blossoms.

Chinese cabbage planting, for insect pest prevention, there is one of the most critical steps, that is, soil treatment, that is, when preparing the land, use 2% imidacloprid granules or thiamethoxam granules, 1000-2000 grams per mu, or use 1% clothianidin granules about 4000 grams to sprinkle some plant ash near the roots of Chinese cabbage, so that some small insects derived from the soil are less likely to damage the stems and leaves. Pay attention to the amount of fertilizer not too much, just play a role gradually.

How to prevent pests and diseases when planting Chinese cabbage in the hot season?

<> the environment of the production area of cabbage. Cabbage is hardy and likes a warm and cool climate, so it is suitable for cultivation in the northeast region, and it is easy to get sick with insects in the high temperature season, which is not only poor in quality, but also has a low yield. Cabbage has a strong resistance to low temperatures, and can grow normally in a minus three degree environment, and above-ground pests are mainly green worms, noctuidae larvae, jumping beetles, and aphids, which will appear in the Chinese cabbage seedling stage until the Chinese cabbage is harvested.

Among them, the larvae of green worms and noctuidae are the most serious, they mainly eat mesophyll, and often cause the whole leaf to be cut in severe cases.

I went to the field yesterday to check, mainly the big ape leaf beetle and the small ape leaf beetle harm, this insect is also called the black shell insect, it mainly harms the leaves of the vegetable, the leaves are eaten into many round holes, and the insect mouth is more when the leaves are eaten into a net, leaving only the leaf veins, resulting in reduced yield! Cabbage insect: It is the main insect pest of Chinese cabbage, it will eat the leaves into small holes, and in serious cases, it will eat up the leaves, and the feces it excretes will also pollute the cabbage heart, so that the yield and quality of the cabbage will be reduced.

After harvesting and before planting, the yellow and old diseased leaves and stumps should be cleared out of the field in time and buried or destroyed to eliminate the breeding of diseases and insects overwintering or transferring to the main host, so as to reduce the number of diseases and insects. Before wintering, the vegetable field is deeply cultivated, winter irrigation, both can improve the weathered soil, snails: this soft-footed insect is obsessed with the love of greens, many greens love to provoke the love of snails, snails are very harmful to vegetable leaves, and the ability to reproduce is super fast, it is easy to breed and flood, for snail prevention and control, some friends said that a few ducks can be done.

Soil treatment, planting on land with high nutritional value, drug control, timely application of pesticides and insect repellent.

The temperature in the field of cabbage in summer is relatively high, which is suitable for the growth of pests such as cabbage spotted fly and aphid, and is more harmful to cabbage, especially vegetable leaves. Generally, some professional insecticides can be used, such as avermectin, fly amine, etc., but pay attention to the rational use of drugs, do not cause pesticide residues, and affect the quality of cabbage.

Be sure to spray pesticides regularly to prevent pests and diseases in advance, and to water and fertilize, always ensure the nutrients of Chinese cabbage, and pay attention to controlling the temperature.

Pesticides can be sprayed because pesticides are more toxic and can eliminate pests.

Daily management is more important to prevent the occurrence of diseases.

Chinese cabbage is easy to cause diseases in summer, so early detection and early prevention and control measures should be taken. In order to prevent the disease, mildew can be sprayed with 50% methyl manganese-zinc wettable powder 600 times or other agents in the early stage of the disease. Soft rot can be treated with 3200-3800 times of 72% streptomycin sulfate soluble powder in the early stage of the disease for spray control or other agents.

Spraying is mainly to spray the base more, and the leaves can be sprayed with an appropriate amount. In addition, cabbage insects, aphids, etc., can be sprayed with 1100-1500 times of cypermethrin or other agents for control. For pests and diseases, management measures should be strengthened to avoid crop damage and losses.

Chinese cabbage Harvesting summer Chinese cabbage cultivation needs to be paid attention to summary:

1. In the summer high temperature season, Chinese cabbage should be planted at the right time, and high-quality and high-yield varieties with strong resistance should be selected. 2. To prevent high temperature and drought, during the growth of Chinese cabbage, water according to the soil moisture, and at the same time do a good job of drainage measures in the ground, maintain top dressing after each weeding, and use fertilizer reasonably. 3. In the whole process of Chinese cabbage planting, the whole process should be strengthened to prevent diseases, and once the diseases are found, corresponding measures should be taken in time.

So as to improve the planting efficiency.

Because cabbage is more cold-resistant than other vegetables, so every autumn, some cabbage will be planted in my vegetable garden, fried and eaten, served as a side dish in the hot pot, and the Chinese cabbage that cannot be eaten can also be pickled in a large water tank, and can be eaten for several months. Therefore, it is very important to do a good job in the field management of Chinese cabbage, in the field management of Chinese cabbage split ears, the most headache for vegetable farmers is the gnawing of cabbage insects on Chinese cabbage.

Poor quality of goods is not easy to sell, which reduces economic benefits and can cause many viral diseases. The prevention and control of cabbage insects and other pests can keep Chinese cabbage azadirachtin is a broad-spectrum plant-derived insecticide, which has a repellent effect on almost all pests of plants, and the brother does the drug after being absorbed by the plant leaves, it can be transmitted up and down to all parts of the plant without residue, and the effect is more than 20 days, the pests will not produce resistance, and it is a higher yield and economic benefit of green and public. The prevention and control of Chinese cabbage insect pests should be based on the principle of prevention and comprehensive control.

Strengthen field management and cultivate healthy and good-looking people in order to eat healthier every day, they will still choose to plant some cabbage in their own vegetable garden, because cabbage is also a relatively cold-tolerant vegetable, so it is like the ripening time is also in winter, so it is still easy to attract some green worms. It occurred in all provinces and autonomous regions of China, among which the butterfly was the most widely distributed and the most seriously harmed. It is mainly harmful to cruciferous plants such as radish, cabbage, rape, and cabbage.

The cabbage worm begins to eat leaves from the larval stage, and the holes you see in the leaves may be its masterpiece. In severe cases, once the leftover leaves are attacked by cabbage insects, it will cause the leaf veins to be eaten, and the cabbage will also have various problems, there is no commerciality, and the yield will be reduced a lot, of course, there may be no harvest value when it is serious. So how can we better prevent cabbage worms?