After the vegetable seedlings are planted, what are the reasons for the dead seedlings and no seedli

Whether it is directly sown vegetables or transplanted vegetable seedlings, there is a possibility of dead seedlings, and it is better to plant in the shed, and the dead seedlings of open-field vegetables are more serious. For some vegetable lovers, the vegetable planting area is not large, and it is distressing to kill a few saplings. There are many reasons for the dead seedlings of vegetables, but they can be summarized as these three main ones.

One is the harm of underground pests, and the other is the seedlings that will die due to soil judgment, water, and spring breeze. This mainly occurs in the open field directly sown vegetables, the third is that the ground temperature is low, the vegetables can be transferred, so that the seedlings do not take root, the right medicine, easy to solve the dead seedlings of vegetables. It is better to grow in our plastic greenhouse.

Every summer, a high-temperature film is made, and chemicals are sprayed when the ground is turned. The saturation of open field seeds can also be disinfected with pesticides, sprayed with neo-yellow phosphorus powder, and sown after spraying carbendazim, which can effectively kill underground pests and some germs.

It is also best to sprinkle some poison and insecticide in autumn for soil disinfection. Fry about 5 kg of bait (cereal, wheat bran, bean cake, cotton thread cake or corn kernels), then mix 30 kg of 90% trichlorfon crystals, add water, stir well to make it look soggy. If there are many insects, the amount of trichlorfon can be appropriately increased, and this poison can be sprayed per acre, and the next day the drug will find dead pests.

Quenching disease and storage disease are also the main diseases that cause dead seedlings, but they are low temperature and high humidity diseases, which are relatively rare in open field vegetable planting. It mainly occurs in vegetable seedlings, and carbendazim or fungal prophylaxis can be sprayed at the seedling stage. Vegetable sowing can choose to water before sowing or after sowing, but due to the strong spring breeze and low temperature, we usually pour water before sowing to make the soles of our feet, and the soil moisture is sufficient when sowing.

When sowing, pour a small amount of water into a kettle in the sowing area to sow seeds. It is best to cover with a mulch film to moisturize.

The soil temperature on the potted seedlings is too low, and the seedlings are not able to take root after being assigned to the seedlings, resulting in the death of the seedlings. The mother soil is mixed with undecaying organic fertilizer to produce an unsympathetic grave. When dividing seedlings, there are too many seedlings at one time, and once the seedlings will not lose too much water, and it is difficult to recover after a few minutes, and it is a dead sapling.

Saplings do not develop well before seedling, and there are few roots. Powder seedlings too late, produce upper roots, weakened absorption capacity, and die seedlings. Increase the soil temperature on the seedlings to ensure the requirements of the bud temperature after the seedlings.

The soil temperature of seedbeds such as cucumbers and eggplants is above 16, and the soil temperature of seedbeds such as cabbage is above 8.

The seedbed soil must be fully fermented and matured when using organic fertilizers, and mixed well with the bed soil. When dividing seedlings, the silt should be compacted and leveled, and then ditched, seedlings should be erected, watered, and covered with soil after seepage. Then it is transferred to the nutrient bowl, and the nutrient bowl will penetrate into it.

Don't hurt the roots too much when germinating, bring more cooked soil and share it together, don't cause too many saplings at once. Stand up saplings wrapped in damp cloth. Prevent too much water from falling off.

In the process of raising seedlings, it is necessary to select seedlings with fewer broken roots, reduced diseases and deformed. Bonsai is not small and helps to increase the survival rate. Usually the first time the saplings are shared, when the branches and leaves are in the first instance, when the gram first sapling is in the three-leaf trial, and the cucumber sapling is before the cotyledons.

It is likely that the nature of the soil is not very suitable, and the light is not very sufficient or the water is not replenished in time, or because of the lack of fertilizer, water and fertilizer management is not done.

First, the soil temperature of the seedbed is too low, and the seedlings cannot take root after being assigned to the seedbed, resulting in dead seedlings; Second, the seedbed soil is mixed with unrotted organic fertilizer unevenly, causing root burning and dead seedlings; The third is that there are too many seedlings at one time when the seedlings are divided, and the seedlings lose too much water for a while, and it is not easy to recover and die after the seedlings are divided; Fourth, the seedlings do not develop well before the seedlings are divided, and the root system is few.

The first reason is that the weather is too cold, and the seedlings are raised from the greenhouse, and the transplanting to the outdoors is not adapted to the slightly low ground temperature, and the seedlings grow very weak or dead. The second reason is that the seedling transplanting time is improper. The third reason is that the soil of the plot is mixed with organic fertilizer that is not well rotted or semi-fertilizer, which causes the roots to burn and die.

The quality of the seeds themselves is not good. Seeds are stored for too long, and new and old seeds are mixed, resulting in different vitality of the seeds, and their own maturity will also have a great impact on their germination. Many of the reasons for uneven seedlings are the quality of the seeds.

Because the temperature is relatively high during transplanting, there is no timely watering after transplanting, and the sunlight is too scorching, so it will lead to wilting and dead seedlings.

It may be due to the dry soil. Think you should plant in a cool or humid environment.

Because after the first addition, there is no timely watering and fertilization, resulting in malnutrition, so the seedlings will die.

The main reason for the phenomenon of dead vegetable seedlings after emergence is worthy of our **:

First, vegetable seeds have pathogens and have not been sterilized.

Second, there are soil-borne pathogens in the seedbed soil that have not been inhibited or killed.

The third is the disease induced by continuous low temperature, rain and high humidity. The lodging of eggplant and melon vegetable seedlings is generally caused by cataplexy, blight and wilt.

Precautions for vegetable seedlings.

Cataplexy disease mostly occurs before the seedlings 2 true leaves, the blight is mostly harmful to the seedlings of eggplant fruit vegetables, and the wilt disease mostly occurs in the seedling stage of melon vegetables, these three diseases are most likely to cause vegetables to die, because they occur quickly The situation is the same, therefore, we should focus on prevention, and can play a good role in prevention and control.

Vegetable seedlings often die in greenhouses or greenbeds and other protected areas, and even die in whole beds. There are many causes of death, but they boil down to two main categories, those caused by microbial pathogens and those caused by environmental factors. The most common type of seedling death caused by biological pathogen infection is called seedling crushing disease, which is caused by a fungus called Pythium melon fruit.

Since planting radish seedlings above the roots close to the soil surface of the place dried up and thinned and died, every time the vegetable planted is, when it first sprouted, it was very good, and after a few days, the stem dried up, the vegetable seedlings lodging, spinach, cabbage are, cabbage has been planted twice This phenomenon has appeared, dying day by day, day by day, people are dying

As the temperature gradually rises in spring, many farmers prefer to grow vegetables in their vegetable gardens. The planting area is not large, the management is more convenient, and the taste is good. But friends who have no experience in vegetable cultivation will also encounter many problems in the planting process, such as fertilizer management.

Vegetables need enough water and nutrients to grow. In addition to the unique content of the soil, artificial fertilizers must be added to promote the growth of vegetables. Fruits and vegetables, in particular, have a long growth cycle and require more nutrients.

Many farmers believe that chemical fertilizers cannot be used to grow vegetables in their vegetable gardens. Excessive consumption of chemical fertilizers can damage the soil and affect the taste of vegetables.

In the process of vegetable garden planting, it is true that many friends have encountered some problems when harvesting fertilizers. For example, vegetable gardens are not planted on a large scale, do not have a complete fertilizer formula, and the amount used is difficult to master. Sometimes, when chemical fertilizers are used, the roots and seedlings burn.

This has a lot to do with the fertilization method. In addition, farmers sometimes use only ether when fertilizing, which results in poor plant growth dynamics and reduced taste. In general, farmers are accustomed to using homemade fertilizers, such as farmhouse fertilizers and enzymes.

But when it comes to fertilizers, some agricultural experts don't advocate moving in the fields. Many farmers have been using chemical fertilizers since they started farming. Why can't they be used in this day and age?

Chicken manure, cow manure, sheep manure, etc. have a good effect on improving the soil and increasing organic matter. But in recent years, there have been problems caused by fertilizers in the cultivation process. Cucumbers are grown in plastic greenhouses, fertilizer is sprinkled, the leaves wilt, and the salinity in the soil increases.

After planting vegetables in the garden and spreading fertilizer, the seedlings no longer grow and gradually wither and die. Both cases have a common problem. That is, with a fertilizer that does not rot, bacteria destroy the roots, and the roots of the potted plant burn buds, especially chicken manure or chicken manure.

When we are planting vegetables in the vegetable garden, usually when watering and pouring fertilizer, how can we confirm that the manure is cooked? If you want to grow vegetables in your garden and grow them well, you can't just use fertilizer. If farmhouse fertilizer is used, it must be cooked before it is used.

In other words, after high-temperature fermentation, you can kill the worms and eggs in the fertilizer, which is beneficial for the growth of vegetables, or you can buy a mature fertilizer. In addition, when using chemical fertilizer, water should be added to the fertilizer, diluted 1000 times before rinsing to avoid burning seedlings.

In the process of vegetable planting, dead seedlings will die from time to time, causing unnecessary economic losses. Master these four points and deal with them easily! When planting agricultural fertilizer that is completely decomposed, if chicken manure, duck manure and other manure are used as the base material, it must be fertilized with a high-temperature stuffy film, fully fermented, and ready to use after cooking.

If the break is short, it's too late. It is recommended to use commercial organic fertilizers that are completely decomposed by fermentation.

The growth of vegetables needs enough water and nutrients, in addition to the only content in the soil, we also need to artificially supplement some fertilizers to promote the growth of vegetables, especially melons and fruits, which have a long growth cycle and need more nutrients. Even though vegetables are grown in a vegetable garden, if you want to grow well, you can't use fertilizer indiscriminately. If you use farmhouse fertilizer, you must ensure that it is used after it is ripe, that is to say, after high temperature fermentation, it can kill the eggs and bacteria in the manure, which is beneficial to the growth of vegetables, or buy some fertilizer that has been well decomposed.

In addition, if you use chemical fertilizer, you can add water to fertilizer, dilute 1000 times, and then apply it after dilution, so that the seedlings will not be burned.

Vegetables need adequate water and nutrients to grow. In addition to the unique content of the soil, artificial fertilizers must be added to promote the growth of vegetables. Fruits and vegetables, in particular, have a long growth cycle and require more nutrients. Many farmers believe that chemical fertilizers cannot be used to grow vegetables in the garden.

The land is fumigated using professional smoking products. It is also important to control the depth of planting. You can choose to plant in the morning or afternoon when the temperature has cooled down. After the seedlings are planted, they should be watered with root water in a timely manner

We take pepper as an example, once the phenomenon of pepper rooting occurs, the pepper root system will die first, and then the pepper plant will die due to lack of nutrients and water; If the soil is compacted due to water accumulation, the root system of the pepper will not be able to breathe normally, and the soil will be deoxygenated to a certain extent1There are many harmful pathogens in the soil, resulting in the root system has not been able to take root in the soil, and the plants cannot grow normally and have rotten roots and dead trees. 2.

The soil is compacted and has poor air permeability, which hinders the normal respiration and growth of plant roots, and the root system is suffocated for a long time, resulting in root rot and death. But there are mainly the following reasons, do not plant peppers every year in a field, it is best to plant again after two or three years, and then plant the ground when sterilizing, deep ploughing and insecticide, fertilization is best with nitrogen, phosphorus and potassium compound fertilizer, do not use urea, urea is easy to grow.

Due to the drought or high temperature of the external environment, or too much fertilizer, or waterlogging, etc., the plant loses water for a long time, or the root system cannot absorb water and wilts to death. There is also pests and diseases. After open-air cultivation and transplanting, the soil moisture is too large, resulting in poor soil permeability, which also causes root rot and stem base rot (solution, increase the application of organic fertilizer, humic acid, high moisture pesticides for control, and drench the roots after transplanting.

Azoxystrobin + Bacillus subtilis)

The soil you need to grow chili peppers needs to use air-free, well-drained soil, which is best if it is rich in humus. If the soil used is poor, then add some well-rotted base fertilizer to the soil. In addition, it should be sterilized before planting, and it is better to use it later.

Once the management is extensive, not fertilizing when it is time to fertilize, and not watering when it is time to water, it will lead to the dwarf of the plant, the growth will deteriorate, and the pepper will starve to death or die of thirst if the nutrients or water are not replenished for a long time.

Pathogenic bacterial infection is the main cause of pepper seedling. The diseases are mainly caused by fungal infection, and cataplexy, blight and blight are mainly caused at the seedling stage and the early stage of planting. The adult stage is mainly a disease. Top dressing, pepper top dressing period is divided into multiple, each period of formula fertilization to achieve a larger yield of pepper, such as before the pepper flower, appropriate topdressing of phosphorus and potassium fertilizer, one is to promote the pepper to open more will make fruit, the other is to stabilize the pepper to prevent nutrient shortage caused by fruit drop.

Too much fertilizer, too much fertilizer concentration, and too close to the roots will cause fertilizer damage. In addition, the application of organic fertilizer that has not been fully fermented will also cause fertilizer damage. The symptoms of fertilizer damage are plant hair, there are root burning, seedling burning, leaf deformity, scorched leaves, etc., and some will be like being scalded by frost or boiling water, which will affect the growth at the light level, and will cause gradual wilting and death when it is heavy.

Because vegetables have not adapted to the unfamiliar environment, and the unfamiliar environment is not suitable for them to survive, they will be allowed to die.

This is because in the process of planting, it is likely that there is a problem with the transplantation, or the transplantation is not particularly adaptable, and the soil is not very suitable.