Cucumbers are grown in uneven size, what is going on?

Your cucumber is now sick, and you can spray it with benzene, mycophine, and habit powder solutions at the beginning of the day. Now the plant is not big, and the liquid cannot be too thick. Sprinkle it every other week and you will see results in two or three weeks.

If the disease is serious, you can spray it several times to achieve a thorough sterilization effect. In order to prevent some pests and diseases, the random use of pesticides will poison the cucumber plant at the wrong time and dosage, resulting in white spots on the leaves of the cucumber plant. If the plant is really toxic, it is necessary to loosen the soil of the plant in time to dilute the venom.

At low temperatures, the protoplasm flow of root cells is slow, and the osmotic pressure of the cells decreases, resulting in an imbalance in water supply and demand, slow bud development, and spots, wrinkles, and curls appear on the leaves.

Yours ** is covered with a black film, why not cover it with a clear film? Due to the low temperature in early spring, the transparent membrane can effectively raise the ground temperature and allow the buds to germinate new roots. Also, the soil around the seedlings is already dry and cracked, so why not cultivate it?

The soil around the seedlings is also cultivated, which helps to effectively raise the ground temperature, improve soil permeability, enable the seedlings to germinate new roots, and quickly alleviate the seedlings. When the soil moisture is insufficient, water can be poured appropriately and the soil around the seedlings can be cultivated in a timely manner. If you apply nitrogen fertilizers to soil bottom fertilizers, such as nitrate nitrogen, ammonium carbonate is ammonium and urea is ceramide nitrogen.

Of the three nitrogen fertilizers, cucumbers are most interested in nitrate nitrogen. Cucumber leaves are gilded because there is too much ammonia nitrogen in the soil, which prevents the cucumber from absorbing calcium. Superphosphate purification solution sprayed on the foliar surface 2 3 times can effectively improve the vitality of plants.

But yours is still in the seedling stage. Please use with caution.

The pathogenesis of diseased plants, the germs remaining in the winter and the germs in the greenhouse are the super-infectious sources of the disease in the field. When the temperature reaches 25 and the relative humidity in the air is about 80%, it is most suitable for the occurrence of cucumber powdery mildew. Unreasonable honey diet, epidemic prevention management, plant length, and premature aging will all aggravate the disease.

Prevention method, according to local conditions, choose disease-resistant varieties, such as Changchun Mizhen, Xintaimi Needle, Luchun 32, Luchun 26, Luhuang No. 1, Chen Yan and Zhenza System Cucumber. In the early stage of cucumber powdery mildew in the field, 50% carbendazim gum was 600 times liquid, 15% green Qingning wet powder was 1500 times liquid, and 50% sulfur Xuanxin 250 was 300 times liquid, which was sprinkled once every 10 days on 7 days. Spray 3, 1, 5 times in a row.

If white patches of different sizes appear, medication damage or fertilizer loss may occur, so don't worry, water frequently, apply more fertilizer, and recover slowly. It does not recover and does not affect cucumber yields. If the element deficiency results in white spots of different sizes, supplemental elements should be implemented immediately, and foliar fertilizers containing various elements such as potassium dihydrogen phosphate and mourning should be sprayed before 9 a.m. or after 3 p.m., or with Clostridium multivariform.

In the case of powdery mildew, horn spot and other diseases, use pesticides such as leukobilla, carbendazim, and metropic to prevent it, and immediately ventilate the warehouse to reduce the occurrence of diseases.

Explain that fertilization or watering may also be caused by poor lighting problems caused by geographical location. It must be "evenly wetted with rain and dew", and the care for each piece of land must be the same.

Improper fertilization, resulting in uneven growth.

The application of organic fertilizer base fertilizer that is not fully decomposed and fermented, resulting in root injury, is the main reason for the uneven growth of cucumbers in this area. After some cucumbers are burned, the seedlings grow unevenly, and the difference is very large. In addition, there are also root burns caused by chemical fertilizers, mainly caused by excessive application rates.

1. Improper fertilization, if growers apply organic fertilizer base fertilizer that has not been fully decomposed and fermented, it will cause root damage, which is the main reason for the uneven size of cucumbers. After some cucumbers are burned to the roots, the growth of the seedlings is uneven, and the size of the cucumbers varies greatly. Growers can apply fully fermented and well-rotted organic fertilizers, and require that they be applied as early as possible, and the amount of chemical fertilizers should not be too large.

2. The ground is uneven, if the terrain in the greenhouse is uneven when watering, it will make the water of the plant unbalanced, the terrain is high, the water is less, the terrain is low, and some fertilizers will be washed away when watering, which causes the cucumber to grow unevenly and the cucumber size is uneven. Growers should choose plots with flat ground and combine the principle of frequent watering with small water. 3. Root-knot nematode damage, some sheds have root-knot nematode hazards, which will infect the roots of cucumbers, because the degree of damage of nematodes in the shed is different, some places are serious, and some places are lighter, which will also make the size of the cucumbers planted uneven.

Penicillium lavender can be used for root irrigation, 2 times in one growth cycle.

Female insemination of cucumber flowers does not completely produce cucumber potbelly melon. When the cucumber blooms, due to the incomplete fertilization of the female flower of the cucumber, only seeds are generated in the head of the cucumber, so that the nutrients produced by the cucumber plant are preferentially transported to the head and accumulate, resulting in abnormal hypertrophy of the tissue growth of the cucumber head, resulting in the head of the potbelly melon and the formation of the pot-bellied melon. In this case, in addition to creating good conditions for flowering and pollination, we should also try to artificially inseminate flowers for prevention and control.

On the one hand, cucumber is a vegetable that needs loose and fertile soil, sufficient water and high calories, and on the other hand, it is a plant with weak root absorption capacity, poor regeneration ability, low temperature tolerance, moisture and waterlogging. Cucumbers must be planted with sufficient and balanced water and nutrients. Here, we place special emphasis on equilibrium.

There can be no shortage of water, waterlogging, lack of fertilizer or excessive nutrients in the early stage and later defertilization, etc., but also pay attention to the balanced application of nitrogen, phosphorus, potassium and trace elements.

This is followed by temperature and light. Ground temperature below 13, above 30, temperature below 8, above 40 will lead to the cessation of development and the formation of deformed melons.

Growing environment conditions change. The temperature difference between day and night is too large, causing different parts to expand at different speeds. Lack of light and low humidity will reduce the growth and development of cucumbers.

Planting is too intensive. When the cucumber melts, in short, the fruit does not get enough nutrients, and when you sit on the fruit, it stops growing and wilting, and finally the whole melon falls.

If the density of cucumber planting is too large, the consequence is to affect the photosynthesis between plants, which is not conducive to the growth of plants; Too much density can also lead to poor permeability between plants; Excessive density can also lead to nutrient deficiencies that affect growth and development.

If the density of cucumbers is too high when planting, it will cause the living space of each cucumber plant to become smaller, and the nutrients absorbed will be reduced, resulting in a reduced yield. Waiting for the cucumber to grow, the branches and leaves become more and more prosperous, which can cause the cucumber fruit to bend and affect the color of the cucumber.

The cucumbers planted, the seedlings grow normally, and the melons are not big, and there are several main reasons:

First, cucumber growth occurs, and the reason for cucumber growth is due to excessive moisture, temperature and excessive nitrogen fertilizer. Cucumber is one of the melon plants that are not tolerant to cold and like warmth, are widely planted in the north and south of our country, because cucumber has relatively moderate requirements for the length of light, in the winter solar greenhouse in the north, the light is shortened to 8 hours, and the same can achieve a better yield. In winter, greenhouses in the north add color to the local vegetable market.

Nitrogen fertilizer is effective, when nitrogen fertilizer is applied sufficiently, and the temperature is too high, especially at night, the temperature difference between day and night becomes smaller. Cucumbers grow well in the range of 25 to 30 degrees during the day and 15 to 18 degrees at night, and when the night temperature is higher than 20 degrees, it is possible to grow, and the fruit is less, due to the high temperature at night, the nutrients are transferred to the fruit and the seedlings are turned to grow more. Therefore, the cucumber planted in the open field is generally through the appropriate drought squatting seedlings, and the root melon is done as soon as possible, and the fruit is more fruitful, and the hoe is cut off the roots, and the amount of nitrogen fertilizer used is reduced to control the growth.

2. The female flower differentiation of cucumber is less, and the number of female flower differentiation of cucumber has a certain relationship with the level of yield. Experiments have proved that when the cucumber seedling stage excessive use of nitrogen fertilizer, the seedlings grow vigorously and rapidly, which affects the cucumber seedlings to absorb potassium fertilizer, and the cucumber female flowers planted are significantly reduced, and the number of female flowers can be significantly increased by reducing the use of nitrogen fertilizer and increasing the use of potassium fertilizer and trace elements at the cucumber seedling stage. In addition to these, the most commonly used means of increasing female flowers at present, is to use ethephon treatment in the seedling stage, which can significantly increase the number of female flowers, the general use concentration of 200ppm, spraying when the two true leaves of cucumber seedlings appear, can increase the number of female flowers of cucumbers, and pay attention to the sparse flowers and fruits in the future.

and strengthening fertilizer and water management. Keep the soil moist often, except for the cucumber seedling stage, properly squat the seedlings, and plant the seedlings slowly, mainly to promote the combination of control. <>

It may be that it is defertilized, and top dressing should be carried out in time. Cucumber grows fast, bears many fruits, likes fertilizer, has weak root fertility tolerance, and has strict requirements for soil nutrient conditions. It has been determined that n needs to be taken from the soil for every 1000 kg of cucumber produced.

The ratio of the three is that cucumber needs the most potassium during the whole growth period, followed by nitrogen, and then phosphorus.

If the nitrogen (N) fertilizer is insufficient, the leaves will be small and yellow, the flower buds of no new branches will be reduced, the flowering will be serious, and the later stage will be prematurely senescent. If there is too much nitrogen fertilizer, the plant will grow, the flowering and fruiting will be delayed, and the disease will be serious. Lack of (P) flower buds can not be formed, flower organs are poorly developed, not only flowering is delayed, but also flowers and fruits will fall, the leaves will turn yellow in the later stage, and die in severe cases.

When potassium (k) is deficient, the leaves lack green, the leaf margins are scorched, the growth is slow, the stems are weak and easy to lodging, and they are drought resistant. Poor cold resistance, affecting crop yields. Boron (b) has an important impact on the formation of flower organs, when boron deficiency flowers are not fruitful, flowers fall and buds, pollen vitality is poor, swelling rings are easy to appear on the petiole, hindering nutrient transport, leaves are yellow, old leaves wilt in severe cases, and new leaves do not grow.

The root system of cucumber is weak, and it is particularly sensitive to high concentration of fertilizer, and it is easy to burn in the case of high fertilizer concentration. Cucumber grows fast, bears fruit early, vegetative growth and reproductive growth go hand in hand at the same time, and nutrients are required to be strict, therefore, the fertilization of cucumber should be fertilized at a low concentration and appropriately increase the number of fertilization methods, that is, diligent application of thin application, "eat less and eat more".

The yield level is 7500 kg mu: 4-5t mu of organic fertilizer application, 10 kg of urea for nitrogen fertilizer, 15-20kg of superphosphate for phosphate fertilizer, 25-30kg of potassium sulfate for potassium fertilizer with "Yanwo microbial agent", the effect is better.

The cucumber seedling stage is at a low temperature of less than 10 for a long time, which makes the seedling age too large and becomes a stiff seedling, which affects the differentiation of flower buds. If the high temperature at the seedling stage is high, the cucumber seedlings will grow, which will also affect the flower bud differentiation. Cucumbers should be planted in early spring to control the temperature appropriately, 20 25 during the day and 12 16 at night is the best. The environment is not suitable during the melon setting period.

Cucumber bearing stage ,..

If the cucumber seedlings are growing well, and the cucumbers are not large. You can try to pinch some of the cucumber flowers to make the fruit nutritious!

1. Insufficient nutrients.

Cucumbers need enough nutrients during flowering and fruiting**, and if they are lacking, cucumbers will grow very small. Therefore, during the fruiting period, more potassium fertilizer and a small amount of nitrogen fertilizer should be applied, potassium fertilizer is an indispensable nutrient for the growth of cucumbers, and nitrogen fertilizer can prevent cucumber vines from growing wildly, absorb cucumber nutrients, nitrogen, phosphorus and potassium fertilizers need to be used reasonably and appropriately to ensure the normal growth of cucumbers.

2. The temperature is unreasonable.

During the fruit-setting period of cucumbers, light and temperature have a great influence on the growth of cucumbers, cucumbers are temperature-loving plants, between 20 and 30 degrees Celsius, grow better and grow faster. Low temperature will lead to a decrease in the quality of cucumbers, and high temperature will make the overall loss of water in cucumbers, slow down the growth, and finally appear many poor quality melons, only the right temperature can ensure the stable growth of cucumbers, and ensure the quality.

3. Thin flowers and fruits.

Cucumber will produce a lot of small fruits during the fruiting period, the cucumber plant is not enough to develop all the small fruits into a better cucumber, you need to do a good job of thinning flowers and fruits, so that the nutrients are concentrated, reduce the diseased melon, the small melon takes away the nutrients of the big melon, and concentrates the nutrients to the large melon, which can significantly improve the quality of the cucumber. At the same time, when thinning flowers and fruits, you can remove diseased flowers and leaves to reduce pests and diseases.

4. There is no pest control.

Cucumbers can develop many diseases when the temperature changes, such as; Powdery mildew, downy mildew, etc., these diseases will directly cause the cucumber to become small. There are also insect pests such as mites, which can lead to the direct death of cucumber plants in severe cases, so you need to pay attention at all times.

5. Caused by insufficient pollination, cucumbers are small.

During pollination, if there is no wind or other assistance, the chance of fertilization of cucumbers will be reduced, which will not only affect the yield of seeds, but also cause cucumbers to become smaller. If conditions permit, artificial pollination can be carried out to improve the quality of cucumbers.

The above are a few reasons summarized for you, I hope it will be useful to you.