How to solve the problem of vine flowering? Is there any good way?

1. When the nutrients stored in the tree during the growth period are insufficient, the incomplete flowers of the grapes increase, the embryo development is stunted, and the pollen germination rate is low, resulting in a large amount of fruit drop and a low fruit setting rate, especially for varieties like Jufeng, whose own genetic characteristics have the characteristics of incomplete embryo development, if the tree is not enough to store nutrients, the flower and fruit drop will be more serious. Therefore, most of the nutrient supply of the grapes should be completed in the early growth period. It is important to note that the best time to replenish nutrients is after the autumn harvest and before the cold weather.

Generally, one-third of the total amount of nitrogen fertilizer is used.

2. The total amount of phosphate fertilizer and half of the total amount of potassium fertilizer are used as base fertilizer, which are applied together during the top dressing period to ensure the nutrient needs of the grapes in the early growth period of the next year. In particular, it is necessary to strictly prevent the loss of flowers and fruits caused by the imbalance of the nutritional balance of the tree, when there is a contradiction between the vegetative growth and reproductive growth of the grape tree, the two will compete for nutrients with each other, because the vegetative growth exceeds the reproductive growth, resulting in the aggravation of the falling flowers and fruits, therefore, it is necessary to combine foliar fertilizer, before the grape flowering, the young fruit stage, and the fruit expansion period are sprayed once for pruning and puffing the fruit king.

2. In terms of production, it is generally necessary to take measures such as timely topping and removal of secondary shoots for grape shoots, which can advance and shorten the differentiation of flower buds, pluck the fruit branches before flowering, and spray the leaves to protect the flowers and fruits, which can effectively promote and balance the amphiphilic enzyme chromosomes of plants, and the rapid formation of purple chromosomes of male and female flowers; The gene strand is closely connected, which promotes the fertilization of flower stamens, the pollination rate is increased, and the physiological growth and reproductive growth of crops are stable and balanced.

3. In July and August, there is a lot of rain and humidity, and there are many high temperature weather, at this time, grapes are prone to diseases, including downy mildew, anthracnose, powdery mildew, black pox, etc., which will cause a large number of fruit grains to fall off. In addition to the selection of disease-resistant varieties such as Jufeng, white banana, and black Orin, spraying before and after germination can induce the production of bactericidal, lytical, and antibacterial factors. It has a strong inhibitory effect on a variety of diseases caused by fungi, bacteria and viruses.

4. In case of rainy weather, or high and low temperature, affecting the normal pollination of grapes, it is necessary to do a good job of field drainage and artificial pollination in time, or spray to protect flowers and fruits, improve pollination rate, reduce waterlogging, ensure the mid-term strength of the tree, enhance the resistance of the tree, reduce flower and fruit fall, and effectively improve the fruit setting rate.

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2. Promote root growth, improve the rate of flower and fruit setting, promote fruit expansion, coloring, and early maturity, improve crop quality, and increase yield. Protein, amino acids, vitamins and other active substances, as well as iodine, calcium, magnesium, phosphorus, potassium and a variety of trace elements. It has good antioxidant and inducible properties, which can delay crop senescence and prolong the harvest period.

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4. Reduce pesticide damage, have a certain repair effect, and heal and repair the injured plant combination.

1) Improving soil: loosening soil, breaking soil compaction, and preventing soil decline (such as acidification and salinization);

2) Environment-friendly: regulate soil microecology, degrade pesticide residues, and passivate heavy metals;

3) Disease reduction: inhibit the growth of soil-borne pathogens and reduce underground insect pests;

4) Comprehensive nutrition: rich in medium and trace elements, effective prevention of nutrient deficiency;

5) Promote growth and stress resistance: the root system is developed, prevents overgrowth, induces plants to produce phytoprotective elements, and improves crop stress resistance;

6) Improve yield: promote flower bud differentiation, high fruit setting rate, promote expansion, increase single fruit weight, and mature early;

7) Improve quality: improve fruit color, surface light, hardness, improve solid content and storage resistance.

Apply the mother liquor of the tree protector to the wound, dissipate the condensation in the tree with strong force, smooth the benign delivery of nutrients, heal the laceration of the duct, and prevent and control the running water of the tree.

If the vines do not bloom, it may be caused by soil discomfort, and it is necessary to give the vines better soil for cultivation, or it may be caused by lack of sunlight, and it needs to be transferred to a sunny environment for breeding, if the nutrients are malfelt, it is necessary to apply fertilizer in time, and the vines can also be pruned appropriately to make the vines bloom.

1. Replace the soil

If the vine does not bloom in the process of cultivation, it may be caused by soil discomfort, and it needs to be replaced with new soil.

2. Sufficient light

The vine loves the sun, and if the vine does not receive light for a long time, it will not bloom, so it needs to be transferred to a sunny environment so that its branches and leaves are constantly differentiated, so that the vine can bloom.

3. Topdressing fertilizer

In the process of cultivating grapevines, if the vines are malnourished and do not bloom, it is necessary to apply fertilizer to the vines in time, so that the branches that can bloom can get sufficient nutrients to promote the flowering buds, but the amount of fertilizer should not be too much, otherwise it will affect the growth of the vines.

4. Trim properly

Usually in spring, you can also prune the vines appropriately, cut off the old, diseased and thin branches of the vines, reduce the consumption of soil nutrients, and enable the flowering branches to wait for sufficient nutrients, do not prune too much, otherwise it will affect the growth.

Why do grapes fall flowers and fruits? What causes it? Flowering and fruit drop is generally divided into physiological and pathological characteristics, among which physiological flower and fruit drop generally occurs from the size of young fruit grains to the size of soybeans after flowering (due to slight differences in variety, climate, water and fertilizer, tree potential and management); Pathological flower and fruit drop is generally more likely to occur before and after flowering to the size of young fruit peanuts (mainly caused by gray mold and cob brown wilt).

Physiological fruit drop is common, generally refreshing, and careful observation shows that the fruit stalk first produces a more distinct layer, and then gradually falls off. Normal physiological fruit drop can be regarded as the "survival of the fittest" after grape flowering, and the amount of fruit drop is mainly affected by variety, climate, management factors, etc. For varieties with relatively heavy natural fruit drop, such as Jufeng, Hutai, and Yongyou, measures such as pre-flowering water and fertilizer control, strong topping, and regulator treatment are often taken to promote fruit setting during the production process. In the production process of varieties with more natural fruit set, such as red earth, cresson, seedless white, etc., measures such as ear pulling, flower watering, and even fertilizer and ear pinching are often taken to promote flower spike elongation and increase fruit drop, so as to reduce the subsequent fruit thinning labor.

Pathological fruit drop is like a devil, and any variety needs to be carefully controlled before and after flowering to prevent large-scale outbreaks from causing losses or even destroying the garden. The fruit drop caused by the disease generally appears water-stained brown at the panicle stem, like boiling water, and the hand is soft rot with a slight viscous feeling, and it is easy to lose water and fall off after the weather is fine.

Physiological and pathological flower and fruit drop often occur at the same time. If the climate is stable before and after flowering, the management requirements are relatively low, and it is not easy to bring large losses; If there is an alternating change in the weather before and after flowering, such as rain and sun (high temperature), this will be a big test for the production manager. If the disease prevention and control is not timely or the supporting management measures are not in place, it is easy to cause huge losses and even damage the garden.

Poor ventilation and light transmission (branches and leaves obstruct flowers and fruits) can easily exacerbate the occurrence of diseases (high humidity, dew drops can even be seen on flowers and fruits, which is conducive to bacterial infection) and poor growth, resulting in severe flower and fruit drops. Reasonable arrangement of branches, timely picking and wiping of young branches, and strengthening ventilation and light transmission in the park are conducive to the healthy growth of trees.

It may be caused by the bad climate, and it has a certain relationship with water and fertilizer management, and there are many reasons for this situation.

The main reasons for grape flower and fruit fall are poor development of flower organs, insufficient nutrition, poor pollination and fertilization. The flower organs are underdeveloped and can no longer continue to grow. That's why flowers and fruits will fall.

This is due to the variety, but it can also be caused by a lack of nutrients or incorrect watering.

Dear, hello, I am happy to answer your questions, I have found for you: grape anti-flower and fruit drop can use growth regulators, such as jasmine acid, ethephon, etc., these growth regulators can promote the growth and development of plants, enhance stress resistance, and reduce the phenomenon of flower and fruit fall. However, it is necessary to follow the method of use and dosage when using growth regulators to avoid negative effects on the plants.

At the same time, it is important to choose the right varieties and good management practices to improve the yield and quality of the grapes. Thank you for your patience, I am happy to answer your questions, if you are satisfied, give a like and support it, I wish you a happy life<>

1. Reason 1 for grape leaf scorching and early fall: brown spot disease mainly harms the leaves of grapes, and there are large brown spots and small brown spots. The lesions are nearly round and have brown rings around them, sometimes with yellow-green halos around them.

Later stages will develop dark brown mold, which can spread, leading to early defoliation. Small brown spots will appear small black spots on the leaves, and in severe cases, they will appear yellow and fall early.

Conditions: Brown spot disease can occur in the form of mycelium or overwinter on fallen leaves in the form of conidia. Moreover, the transmission ability is strong, and the harm is very serious in the environment of high temperature and high humidity. The peak period of the disease is from July to October every year.

Control measures: Appropriate application of organic fertilizer to make the tree strong, improve the disease resistance of the plant, and reduce the occurrence of diseases. When the disease occurs, it is necessary to spray the undiseased parts to prevent the spread of the disease, clear the residual branches and diseased leaves in the garden, and burn them to reduce the source of the disease, and pay attention to the drainage of the orchard and strengthen the ventilation and light transmittance.

2. The second reason for the early fall of grape leaves: downy mildew mainly harms grape leaves, and can also infect young tissues such as new shoots and young fruits. In the later stage, the leaves appear yellowed and fall early.

Disease conditions: rainy environment is prone to disease, generally weak trees, poor ventilation, easy to occur. The germ is transmitted by wind, rain, air currents, and branch wound infections caused by pruning. Symptoms are evident after fruit ripening.

Prevention and control measures: strengthen fertilizer management, increase phosphorus and potassium fertilizer, timely pruning and tying vines, improve ventilation conditions, can improve the disease resistance of grapevines, clear the garden in winter, burn the residual leaves and diseased branches, can effectively reduce pathogenic bacteria, in addition to the onset of the disease, targeted spraying treatment.

During leaf senescence, the protein content decreased significantly, the RNA content also decreased, and the photosynthetic ability of the leaves decreased. Under the electron microscope, it can be seen that the chloroplasts are destroyed by the alteration when the leaves are senescent. These physiological and cytological processes are the basis of aging, and the end result of leaf senescence is defoliation.

From the perspective of morphological anatomy, it has been found that leaf litter is related to a special structure close to the base of the petiole - delamination. Microscopically, it can be observed that the thin-walled fine cells of the delamination are smaller than the surrounding cells, and during the aging process of the leaves, the activity of pectinase and cellulase in the delamination and its adjacent cells increases, resulting in the lysis of the whole cell, forming a natural fracture surface. But the vascular cells in the petiole do not dissolve, so the senescent and dead leaves are still attached to the branches.

However, these vascular bundles are very delicate, and when the autumn wind blows, it cannot resist it, and the tendons and bones are broken, and the whole leaf staggers and falls to the ground. In autumn, the chlorophyll is destroyed by low temperatures and strong light, and the leaves gradually turn yellow and fade. At the same time, the ability of tree roots to absorb nutrients from groundwater is weakened.

In order to have enough nutrients to resist the cold winter, the trunks and branches of the trees adopt the form of leaf drop to protect themselves. The conditions that affect plant defoliation are light rather than temperature tracking. Experiments have shown that increasing light exposure can delay leaves.

When the soil moisture content is higher and the fertilizer is more vigorous during the grape flowering period, the summer buds germinate more, and the new shoots grow vigorously, if the buds are not wiped in time before flowering, there will be a phenomenon of new shoots competing for nutrients with the fruit, and when the ratio of vegetative growth and reproductive growth is out of balance, fruit drop will occur.

There are several reasons: (1) insufficient nutrients (2) too much water (3) too much fertilizer (4) too large temperature difference, which is difficult for plants to adapt.

It is very likely that it is an over-fertilization. To control the application of nitrogen fertilizer, scientific and reasonable fertilization, the concentration of fertilization should not be too high, and do not water after fertilization. It is also possible that plants have pests and diseases, and plant-specific insecticides should be used in time to spray evenly on plant leaves.