What is the reason for the lack of seedlings after planting peanuts in a large area?

Before peanut sowing, farmers will use seed dressing agent to prevent the occurrence of some pests and diseases, but if the seed dressing agent is used excessively, it will inhibit the germination and emergence of peanuts, such as when using seed coating agent to dress seeds, it will cover a layer of peanut skin, if the film is too thick, it affects the germination of seeds, resulting in the emergence of seedlings.

The seed problems affecting peanut seedling emergence obstacles mainly include poor seed quality and mechanical damage. Some farmers use the seeder of seed fertilizer and sowing at the same time to complete fertilization and sowing at one time, which improves the sowing speed and reduces the sowing cost, but sometimes it will cause the seed fertilizer isolation effect is not good, especially when the soil moisture is large, it is easier to burn the seeds, resulting in seedling emergence obstacles.

It is very likely that it is caused by severe water shortage, very drought, watering more, ventilating more, and be sure to fertilize so that you can increase the yield.

Increase light, dilute fertilizers, replenish elements, control pests, and more.

1. Peanut seedlings are not tolerant to strong direct light, but they also need light during the growth process, otherwise it will cause chlorophyll to be difficult to form, so that the leaves will turn yellow, and the plants can be maintained in a bright and astigmatistic place. Peanut seedlings need to rely on fertilization to maintain normal growth, but excessive or too concentrated fertilizer may cause fertilizer damage and cause yellowing of leaves, so it is necessary to water a large amount of water immediately to dilute the fertilizer.

2. The demand for water of peanuts in the seedling period is still relatively high, and it is necessary to keep the substrate in a slightly moist state. It may also be caused by improper fertilization, too much fertilization or lack of nutrients will cause the leaves to turn yellow, too much fertilizer and more watering, and insufficient nutrients to fertilize more.

3. When peanuts are deficient in iron, there will be yellowing of leaves, peanuts are only the upper part of the leaves are yellow, and the lower part of the leaves are still green, and the veins of peanut leaves will also be yellowed when it is serious, and the size of the leaves of peanuts has not changed, but the color has changed. Therefore, if there are yellow leaves in the peanut field, you can see if there is a characteristic of iron deficiency, and if so, you can carry out iron supplementation to rescue it.

Causes of flower life and death: There are many reasons for root rot of flower life and death trees, which are caused by stem rot and root rot pathogenic bacteria infection under specific environmental conditions, and some are caused by pesticide damage and fertilizer damage. Peanut seeds are peeled too early and not sun-dried:

Many farmers are accustomed to peeling the shell of peanut seeds in the winter leisure before and after the Spring Festival, the shelling is early, the seeds are easy to absorb water, enhance respiration, consume a lot of nutrients, increase the pathogenic rate of seeds, reduce germination ability, and at the same time the surface of seeds often carry a large number of bacteria, increase the pathogenicity of seeds, and the seeds can not be dried before sowing, affect the vitality and disease resistance of seeds, increase the incidence of disease, reduce the germination rate, and easily cause dead seedlings.

<> peanut seeds are peeled too early and do not dry seeds: many farmers are accustomed to peeling the shells of peanut seeds in the winter leisure before and after the Spring Festival, the shelling is early, the seeds are easy to absorb water, enhance respiration, consume a lot of nutrients, increase the pathogenicity of seeds, reduce germination ability, and at the same time the surface of seeds often carry a large number of bacteria, increase the pathogenicity of seeds, and the seeds can not be dried before sowing, which affects the vitality and disease resistance of seeds, increases the incidence of disease, reduces the germination rate, and is easy to cause dead seedlings. If you're planting peanuts in heavy crops, the soil contains germs and pests"Ground Tiger"Wait, without disinfection and killing, the flower skin you planted will die in life, and the flower tree will be caused by the roots, and there is no cure for the dead tree when the hail burns.

It is a seed problem, the seeds are not stored properly and are slightly mildewed due to moisture, because it is not serious and difficult to find, small seedlings, yellow seedlings, weak seedlings appear after sowing, and they are not long in the early stage, and then they slowly wither and die.

The flower dead trees include dead trees at the seedling stage and dead trees at the late growth stage. The main causes of flower life and death are pests and diseases, such as root rot, crown rot, white silk disease, underground pests, etc. Among them, the disease caused the most deaths.

The best way to prevent the death of flowers and trees is not to plant repeatedly, followed by pesticide control. To prevent and control dead trees at the seedling stage, the focus is on seed coating; The prevention of dead trees in the later stage is mainly to do a good job in the prevention of underground pest control and white silk disease.

1.It is mainly caused by the Phytophthora fungus. It is suspected of being infected with root rot, blight, insect pests, etc. 2.It may also be that the roots are damaged or infected, resulting in a lack of water and nutrients. 3.Soil moisture is not good.

There are many reasons for the sudden death, it may be that the leaves of the spine grandchildren are yellowed because of the more sunlight they absorb, or it may be because they are watered too much or the fertilizer prepared by the wild is not suitable for the roots of the people, which will cause them to die.

The main cause of sudden death of peanut seedlings is caused by Phytophthora fungus. The sudden death of seedlings is caused by the seedling stage, and the occurrence of peanut seedlings after irrigation is more common in humid environment. The pathogen invades the cotyl of the seedling and forms a slightly sunken long scar on the upper margin.

Quickly ring the hypocotyl, turn into brown water immersion and change the shape of soft rot, the seedlings quickly wilt and lodging, the surface is covered with white mycelium, and sometimes the branches wilt. The leaves on the diseased branches quickly fade, begin to die from the edges, and rapidly spread to the whole leaf. The small petioles wither, while the large petioles remain green.

The main reason for the sudden death of the seedlings next to the flower blind is caused by Phytophthora fungus, when the peanut seedlings grow in a humid environment or watered more, the mill and oak will have such a situation.

The cause of sudden death was that there was too much watering, and it was not convenient to drain the water at all, so the resulting plants quickly waterlogged.

Mainly around July every year, the temperature is relatively high, prone to disease problems, must be reasonably controlled, otherwise it will affect the output.

It is usually at the time when a large number of fruit needles are in the soil. Be sure to control the use of medicines, do not use high-concentration agents, and also pay attention to grasp the time of taking medicines, otherwise it will have the opposite effect.

Pesticides to control the growth of peanuts, peanuts appear to be vigorous, and the stems and leaves will also be vigorous, so flowering will be affected; Judge the plant of peanut growth according to the height, and spray the king agent if it is high; Keep the field moist so that the peanuts grow.

When the weather is particularly bad and the weather is particularly cold, coupled with the fact that the nutrients of the soil are not particularly sufficient, and there is a serious shortage of water, do not plant.

The land is particularly barren, and there are a lot of small rocks in it, and the nutrients that are supplemented are easily lost, and the rainfall is very low.

If the soil is very rigid, then don't grow peanuts anymore, because the peanuts grown in such land are very small and very unnutritious.

If the soil is not particularly fertile and hard, then it is not possible to plant peanuts, and the soil needs to be nourished to increase the fertility.

The soil quality is particularly poor, and the survival rate of peanuts is not very high, so even if they are planted, they will not be very profitable.

If you encounter some pests and diseases, or encounter some particularly dry soils, do not plant them, otherwise the yield will be affected.

If the temperature is particularly low, it is better not to plant it, because peanuts need a certain high temperature, and they also need very high humidity, and if the weather is very dry, it is better not to pretend.

Now spring peanuts have begun to be sown one after another, and farmers are also very concerned about the issue of increasing yield. From sowing techniques, fertilizer and water management to pest and disease control, we all have fixed methods, but on the basis of neat and strong seedlings, how to improve yields?

<> make good use of trace element fertilizer in the process of high-yield fertilization of peanuts, the remaining mu of nitrogen, phosphorus and potassium these large element fertilizers, including calcium fertilizer, many farmers often use as base fertilizer, can be used with balanced fertilizer plus superphosphate, or directly use peanut special fertilizer to meet the needs of peanut growth period. In these empty years, the use of trace elements is also obvious to increase production, such as boron fertilizer and molybdenum fertilizer.

Many growers know that peanuts will have more flowers and fewer fruits because of their own characteristics, and only 50 of the 100 flowers may form flower needles, and the number of fruits will be less. Therefore, the role of boron is to promote more flowering and the downward pricking of flower needles, and lay the foundation for the formation of fruit preservation in the later stage. Boron fertilizer is mainly used as seed dressing and foliar spraying, as a foliar spray, it can be mixed with potassium dihydrogen phosphate, a bucket of water to add 15 20 grams of boron fertilizer, foliar spraying, mainly in the early flowering and full flowering stage each spray, improve the pod setting rate and the number of effects.

Peanuts often grow vigorously and lodging in the middle of growth, which is inseparable from the fertilizer and water management of farmers. If the peanut plant grows vigorously and the effective photosynthesis declines, there will be early ridge sealing, only seedlings grow, less flowering, less fruiting, lodging, etc., so it is difficult to increase the yield of peanuts. Therefore, by spraying the control agent to control the steady growth of the tree, commonly used paclobutrazol, uniconazole, chlormequatin, calcium cyclic acid, etc.

Paclobutrazol has a strong control effect, but the risk is also large, and it is suitable for plots with sufficient fertilizer and water and obvious growth. Calcium cyclic acid is used to prevent peanut growth. The time of the wang control agent can not be early or late, and the early control will inhibit the needle, and the late control will not work.

It can be used in three ways, some are used 30 to 50 days after the first flowering of peanuts, some are used when the flowers have grown to 30 40 cm, and some are used in the late stage of needle setting, just after pods.

Soil nutrients are out of balance, peanuts have a high demand for nutrient absorption in the soil, calcium, phosphorus, potassium, etc. are essential elements for peanut growth.

It may be due to a lack of observation and a bad environment. The first thing is to make a detailed observation, and the second thing is to choose the right environment.

That is, with fertilization and watering. The specific gap should be mastered. And the temperature of the growth should be suitable.

In the process of planting peanuts, the bottom fertilizer is not applied in time, the soil fertility is insufficient, the right peanut seedlings are not selected, and the water is too much in the planting process, resulting in the root system being flooded and rotting, and there is a possibility that there is a serious pest and disease disaster, resulting in mildew in the planted seeds.

In this case, insect infestation generally occurs, and it can be prevented by mixing some insecticides in the soil at the time of sowing.

In this case, the disease is generally encountered, and it can be sprayed with fungicide every 7 days after the emergence of seedlings, which can effectively prevent this from happening.