Cucumbers bloom but do not tie. Why cucumbers are not tied, the ovary falls: how and when to feed the cucumbers. Too high or too low air temperature

It so happens that with successful flowering, cucumbers do not give an ovary. I planted seedlings, grew them, transplanted them into the soil, watered them, cared for them, but there was no harvest. It's a shame! In this article, we will try to figure out why cucumber ovaries do not grow, and how to avoid empty flowers.

Lack of pollination

What should be done when there is no ovary on cucumbers? The fact is that cucumbers are bee-pollinated crops, which, as you know, require the presence of a pollinator. It is logical that if the bees cannot get to the seedlings, then there will be no ovary. If the temperature environment rises above +35 °C, the pollen is sterilized. As a result, cucumbers flower but fail to pollinate, so waiting to set is a waste of time. In cool weather, insects also do not fly, and pollination does not occur.

Some believe that if the empty flowers are removed, the number of female flowers will increase. But this opinion is erroneous, as this will lead to the fact that pollination conditions will worsen. Do not touch the empty flowers, as they themselves will fall off during the drying process. AT greenhouse conditions it is better to grow self-pollinated varieties. Can be pollinated mechanically: with a brush, first touch the male flowers, and then the female ones.

Strong thickening

In order for cucumbers to properly tie and bear fruit, they should be planted correctly. With a strong thickening, you can be left without a crop. But the situation is fixable: you can simply weed the plants; you should also harvest regularly (some varieties grow very quickly and should be harvested almost every day).

Unsuitable conditions

Cucumbers are tied, but do not grow? The reason may be in violation of growing conditions. Perhaps you need to rethink the lighting mode. If there is little light, then cucumbers have weak stems and elongated fruits. To grow excellent harvest, needed good watering. The main condition is that the water should not be colder than the soil. Most often it is around +25 °C. The best solution is to pour water into barrels to heat it up, or add hot water. It is not recommended to water cucumbers late in the evening.

Keep in mind that excess moisture will not lead to anything good. Here, as in any other matter, balance is important. If the soil has excess moisture, it must be dried. After this simple procedure, some leaves will wither, but most importantly, many female flowers will appear, which is a guarantee that the cucumbers will begin to tie. Just do not overdo it, as the plant may die. Cucumbers are excellently developed root system, therefore, if groundwater rises close to the surface, then the roots begin to rot and the crop is in jeopardy.

One of the important factors for obtaining an ovary for cucumbers is temperature. At high temperatures, gardeners can observe an abundance of barren flowers, but frosts are not the best way so that the cucumbers can start and bear fruit. During the heat, cucumbers need to be watered daily; in cloudy weather, refrain from watering. Great option - drip irrigation, which allows you to maintain the required soil moisture.

spoiled seeds

Cucumbers are blooming, but there is no ovary? What if all conditions are met? The reason may be in the seeds. For example, if the seed is stale, then the flowers with the ovary (female) will grow first. And among the fresh seeds there may be only barren flowers ( male flowers). If it is not possible to find out the term of the seeds, then they should be warmed up before planting. This procedure will allow female flowers to appear earlier.

However, there are varieties where flowers with an ovary appear later. Such varieties are considered late. In this case, you just need to wait a bit.

In general, hardening will not interfere with swollen seeds. To do this, they are placed in a cool place for several days, then dried a little and only then they are already sown. Such seeds will begin to grow earlier.

Lack or excess of nutrients

Cucumbers started, but do not grow - what to do? Possibly imbalance nutrients. The opinion that there is not much fertilizer is erroneous. The abundance of nitrogen in the soil will lead to an increase in the number of empty flowers.

If your cucumbers didn’t start at all, what to do in this case? Feed the soil with the missing trace elements and reduce the amount of those that are already in excess.

You can normalize the soil by fertilizing with phosphate fertilizers. Water the seedlings with infusion of tree resin. A cucumber can bloom even if the balance of trace elements in the soil is disturbed, but due to a lack of strength, it will begin to drop flowers. To avoid this, feed flowering plant infusion of mullein every seven days.

What to do

So, what to do if cucumbers do not bloom? Here are some tips:

create favorable conditions;
maintain a balance of nutrients in the soil;
sow high-quality and proven seeds;
avoid thickening.

It is good to choose seeds for sowing that have been stored for several years. Why? Because prescription improves quality and, accordingly, productivity. Flowers with an ovary appear earlier than usual. To increase the yield, it is also recommended to soak the seed in special solutions.

The reason why cucumbers do not bloom may be an excess of moisture. To prevent this from happening, during flowering, you can refrain from watering on some days. As soon as the ovaries appear, daily watering must be restored.

If there are too many empty flowers, then it is necessary to pinch the top of the main stem.

Cucumber ovaries do not grow - what to do in this case? Check the humidity level in the greenhouse, it should not exceed 90%. You may need to feed the plant - for example, with drugs such as Zircon or Epin.

Video "What to do if there are empty flowers on cucumbers"

From this video you will learn about what actions to take if there are empty flowers on cucumbers.

So, if there is no ovary for cucumbers, you should check and, if present, eliminate negative factors that affect this process. And this can be a temperature over thirty-five degrees, relative humidity over ninety percent, lack of pollination, lack of nutrition in the soil.

Many people wonder if empty flowers should be removed. Yes, indeed, by removing them, you can improve pollination. But they themselves quickly turn yellow and fall off, although they grow quite quickly. Therefore, it is up to the gardener to decide whether to do this or not.

Some hybrid varieties where female flowers predominate, pollination may be absent due to a lack of male flowers. To fix this, you need to seed another variety of cucumbers for pollination.

The lack of pollination is also possible due to prolonged cool weather, as a result of which pollinating insects simply do not fly and do not cope with their task. Then the tops grow, but there are no fruits.

But this can be fixed by pollinating the flowers by hand when they bloom. To do this, they take male flowers, tear off the petals from it and carefully put them into the female ones. You can also pollinate the stigma of a female flower with a brush.

Why is the correct planting of seedlings very important for the appearance of ovaries on cucumbers? Because with a strong thickening, cucumbers will not bear fruit. But this can be fixed by weeding the plant.

It is necessary to monitor the timely harvest. Overripe fruits interfere with the formation of a new ovary. There are some varieties that are recommended to be harvested every other day or even every day, as they grow quite quickly.

To obtain an ovary and, as a result, a good harvest, there are a number of conditions, observing which you can grow a certain crop.

One of the conditions proper cultivation cucumber is a good watering. Seedlings should not be watered with water colder than twenty-five degrees, but in any case, the water should not be colder than the soil.

But an excess of moisture is just as bad as insufficient soil moisture. The key here is to strike the right balance. If the soil is waterlogged, it must be dried for several days. After drying and a slight wilting of the leaves, many female flowers will appear, which will lead to the appearance of the ovary of cucumbers. But again, do not dry out the ground too much, this can lead to the death of the plant.

Proximity ground water can also adversely affect the growth of the plant and its yield. This is due to the fact that cucumbers have a fairly well developed root system, and such conditions can simply ruin it.

The ambient temperature is also key factor for a good crop of cucumbers. Heat can lead to the death of the plant, in fact, and frosts also adversely affect the fruiting process.

Often the reason for the appearance of empty flowers and the lack of fruiting lies in the quality of the seeds. If fresh seeds are sown, most likely, only male flowers (barren flowers) grow, if two or three years ago, on the contrary, they will grow first female flowers, then only men's. If the statute of limitations for seeds cannot be determined, but they need to be planted, after warming up the seeds before planting, then female flowers will appear much earlier, along with male barren flowers.

For good germination seeds need to monitor the level of phosphorus in the ground. Potash fertilizers are also important.

There are varieties of cucumbers where female flowers are formed later. These are late cucumbers. In such conditions, you need to wait a little longer for fruiting than usual.

Favorable conditions will be the hardening of swollen seeds. To do this, the swollen seeds are placed in the refrigerator for several days, then they are dried and sown. Such hardened seeds germinate earlier. They can germinate even at a lower temperature than is usually required.

The optimum temperature for seed germination: twelve to thirteen degrees. Hardened seeds can germinate at ten degrees Celsius.

Violation of the nutrient balance is also a significant reason for the lack of ovary on cucumbers, when one microelement predominates in the soil, and the second is not. Violations of this balance can cause an overabundance nitrogen fertilizers in the soil. Because of this excess, all the strength of the plant is lost in the exuberant growth of leaves and barren flowers.

For good fruiting of cucumbers, a uniform nutrient content in the soil is required. In order to normalize the soil, fertilizing with phosphate fertilizers or infusion is suitable. wood ash. An extract from superphosphates is also suitable for these purposes. Such an extract is being prepared at the rate of two tablespoons of the mixture per ten liters of hot water.

When nutrients are disturbed in the soil, many ovaries can form, but due to lack of strength, they can fall off. Therefore, if enough flowers have formed on the plant, they need to be fed every seven days with an infusion of mullein and urea. Also, many recipes and tips can be found on the Internet.

To provide optimal content organic matter in the soil, you need to put manure, humus or compost under the plants at the rate of one bucket per one square meter soil.

On sandy soils, cucumbers need magnesium, so Kalimag is good to apply in such soil.

If all the negative factors that prevent the plant from fruiting normally are removed, but nothing helps, the cucumbers bloom, but the ovaries do not grow, as an option, you can pinch the top of the foliage. This will stop the growth of the stem in length, cause the growth of lateral pagons and, as a result, the growth of female flowers.

To increase plant resistance to stressful situations, you need to spend foliar top dressing cucumbers.

This video is about the secrets of pollinating cucumbers in a greenhouse and about possible reasons, because of which the ovaries do not grow.

Parthenocarpic cucumbers are gaining more and more popularity among gardeners, especially in greenhouse cultivation. The reason is simple: for a good harvest of a green vegetable, pollination by insects is absolutely not required. The plant has only female flowers and ovaries are formed independently, and in large quantities.

However, in order for the harvest to be not only large, but also of high quality, parthenocarpits require a little more attention than ordinary varieties. The fact is that such plants grow very quickly, forming many new shoots. Therefore, most of the nutrients go to new ovaries. Since there are a lot of them, the fruits grow slowly. It seems that this situation happened to the author. To redistribute spending useful substances, and direct them to the growth of cucumbers, the plant should be pinched.

How to properly form parthenocarpit cucumbers?

Pinching is different from simple cucumbers. Non-hybrid varieties usually begin to form after the fifth leaf, since male flowers are laid on their main shoot.

In parthenocarpits, flowers grow in the same way, however, it must be borne in mind that they female, so do not pinch after 5 leaves.

Formation is best done in this way:

in the sinuses from the first to the fifth sheet, remove side shoots and inflorescences;
leave the next six side lashes (the length of each should be no more than 25 cm);
pinch two or three shoots growing behind them, shortening them to 35 cm;
increase the length of the next triple of lashes by 10 cm, and then also pinch.

The main shoot must be fixed, and when it acquires maximum length, also pinch or throw it over a support (to grow towards the ground).

In secondary shoots that appear from the side lashes (not the main ones), after the first leaf, the growth point should be removed.

What other reasons could there be for the ovaries not growing?

If the bush was formed correctly and on time, and the set fruits still do not grow, the reason must be sought in the following:

Too much a large number of ovaries, which the plant cannot "feed". Solution: remove them before blooming flowers, leaving no more than 30 pieces per bush.
"Young age" of the plant. Weak bushes have a weak leaf apparatus, but can already form lateral shoots with ovaries, but there is not enough food for everyone. Solution: if the bush is not yet strong enough, it is better to remove the first ovaries and give it time to gain strength.
High humidity air. Solution: ventilate the room more often.
The room is too hot. Solution: lower the temperature or move the plant to another location.
Sudden temperature changes.
Heavy soil. Solution: feed cucumbers with growth regulators (, Epin)

Parthenocarpic varieties of cucumbers during the period of formation and ripening of fruits need weekly top dressing, for example, infusion of mullein with urea.

Parthenocarpic cucumbers: popular hybrids - video

Abundant flowering without fruit set is quite common in amateur plots.

Barren flowers are male flowers, without which it is impossible to set cucumber fruits. The quantitative ratio of male and female flowers is influenced by varietal features, seed quality and growing conditions.

Only male flowers are formed first in the lower nodes of the main stem, then there is an alternation of male, female and mixed flowers. The number of female flowers gradually increases towards the top of the main stem and on the side shoots. However, there may still be a large number of male empty flowers.

The causes of empty flowers can be:

- sowing fresh seeds (the first year of storage);

- seeds not warmed up before sowing;

- high ambient temperature;

- sowing in shady places;

- strong thickening;

- untimely breakthrough of plants;

- violation of the balance of nutrition (a large dose of nitrogen fertilizers was introduced);

- severe waterlogging of the soil.

For sowing, it is better to take old seeds (2-4-year shelf life). Plants grown from such seeds are more productive, as they form earlier. large quantity female flowers, and, consequently, future fruits.

The seeds of the first year (let's say that you have prepared them yourself) before sowing, they must be warmed up in a gauze bag suspended not far from the heating batteries, bringing them in with the onset of winter, and warming up for 1.5-2.5 months at room temperature. You can, but with great care, "age" the seeds in a drying or oven at a temperature of 50-60 ° C for two hours.

There are special preparations, such as Novosil, Zircon, which increase the fruitfulness of plants if the seeds are soaked in them before sowing.

Cucumber responds well to organic fertilizers with the addition to the rows before sowing and planting superphosphate (4-5 g) per 1 running meter row.

When many barren flowers appear, pinch off the top of the main stem. This contributes to the development of lateral lashes, they form more female flowers. At early maturing varieties they pinch the main stem after the tenth, and in late-ripening ones - after the eighth leaf, and then the lateral shoots that have grown later fill the voids, which improves illumination and accelerates fruiting.

One of the main reasons for the delay in the appearance of female flowers is watering. cold water. The water temperature should not be lower than 25 "C. Therefore, it is necessary to water in the morning with warm, heated

water or in the afternoon, when the soil and water for irrigation warm up well. But in the latter case, it is necessary that the soil be ventilated before dark, in a word, it is necessary to reduce its humidity by evening.

High soil moisture is necessary in the first growing season - before flowering and during intensive fruit growth. In the flowering phase, watering should be temporarily stopped (this contributes to an increase in the number of female flowers being laid) and it is resumed at the beginning of fruiting with an increase in the rate to 15 liters of water per 1 m2. If it is very hot, then water twice a day - in the morning and in the afternoon with small norms. If the weather is cloudy and the air temperature is below 15 ° C, you should refrain from watering.

By changing the water regime, it is possible to regulate the growth and development of plants. With a decrease in soil and air humidity, the turgor weakens, the outflow of carbohydrates from the leaves slows down. The intensity of photosynthesis is reduced. Growth processes are delayed and the transition of plants to flowering is accelerated.

The only problem is that at low relative humidity air, transpiration and absorption activity of the roots increase, and the mechanical intake of salts from the soil increases. In cucumber, this leads to the formation of male flowers. At high relative air humidity, the mechanical intake of salts is replaced by selective assimilation by the root system of the cucumber and, at the same time, the mass formation of female flowers is noted. High air humidity increases cell turgor, enhances photosynthesis and the consumption of assimilants for the growth of stems, leaves and fruits.

To enhance the growth of stems, leaves and fruits of cucumber, so-called poultices are used - moistening the air in the greenhouse by watering with small norms at the rate of 1.5-2 liters per 1 sq. m. Poultices are carried out in sunny weather, on the days between the main waterings, when the soil is still wet, and its surface and air are still dry. To do this, spray the topmast, passages and heating appliances. When water evaporates, it humidifies the air. After the poultice, the vents do not open.

For better yield put fermenting containers with mullein in the greenhouse, as an increase in concentration carbon dioxide in the air increases their assimilation and yield.

Regularly fertilize with a solution of bird droppings (1:12-15) or a solution of mullein (1:10), with the beginning of fruiting with the addition of superphosphate infusion (40 g per 10 l of water) or Kemira-Lux.

And the last tip: now a lot of hybrids are on sale (pay attention to the F1 icon), these are mostly parthenocarpics: they do not require additional pollination. You can choose any of the hybrids zoned in your area and strictly follow the agricultural instructions.

Cucumbers are a favorite crop of most summer residents. Versatile in use proper care gives a rich harvest. For good growth culture must be provided with sufficient moisture and heat. Already in June, the ovaries are visible - the first rudiments of the harvest. However, it happens that there are many of them, and the culture has stopped in development. Therefore, it is necessary to understand why cucumbers do not grow well, whether they like a draft, what can be done to make the culture grow well again.

Why did cucumbers stop growing?

If cucumbers have stopped growing, you need to understand why this happened. To do this, it is important to analyze the time of planting, care and the conditions under which they grow.

The main reasons for stopping growth are:

Poor quality seeds. Low quality planting material can be seen during the growing season. It sprouts poorly, gives weak sprouts. At the same time, small leaves turn yellow before planting in open ground.
Early disembarkation- the culture loves warmth, so you should not plant it on the first warm days that come after frost. For favorable growth cucumbers, it is important that the average daily temperature is not lower than 15 degrees. If the landing happened earlier, nothing can be done. The summer resident can only learn a lesson and not make similar mistakes next year.
Nutrient deficiencies during the growing season- cucumbers do not develop, the fruits are flabby and deformed. This is often due to a lack of nitrogen. To do this, it is necessary to feed the culture under the root with a solution of urea. If the fruits resemble a pear in shape, they lack potassium, you need to pour potassium sulfate or a solution of wood ash.
Wrong care- growing cucumbers requires careful care. It is necessary to regularly loosen the soil, water, form lashes. Best Harvest it turns out on lateral shoots, so you should pinch them by 40-45 cm, cut off the top of the main stem.
lack of moisture- cucumbers begin to bloom, but small cucumbers do not grow. It is necessary to water three times a week with warm water. When forming flowers, do not pour water on the leaves, so as not to knock down the ovaries.
Poor pollination- if the cucumbers started to set, but do not grow, the reason is poor pollination. To remedy the situation, you can spray the culture with a solution of sugar with lemon balm infusion. The tool will attract bees, improve pollination.
Development of diseases- a common disease of cucumbers is powdery mildew, appears as white spots on the culture. To get rid of it, you need to use a mixture of skim milk, a few drops of iodine and warm water. The tool will relieve the problem, the plants will slowly begin to recover and set fruit.
Cucumbers may stop growing due to the development of anthracnose. This is a disease in which spots appear on the top of the leaf. At the bottom of the leaf, a pinkish bloom forms, turning into sores. To grow good harvest, you need to remove all damaged parts.

Ties on cucumbers

Cucumbers grow poorly, grow slowly: how to feed

If cucumbers have stopped growing, what should be done as soon as possible. First of all, in order for the culture to grow, it is necessary to feed it with special fertilizers, which can be both chemical and natural.

Natural top dressing

Bread top dressing- fill 2/3 of the bucket with bread crusts, pour water, put under pressure for a week. To use, you need to dilute it three times, add 50 gr universal fertilizer for 12 liters of water. Treat the culture at the beginning of flowering and before withering once a week.

On a note! This tool has an acidic environment, so it is great for alkaline soils.

Ash. To get a good cucumber harvest, you need to pour a small amount of the product under the root of the crop. It is worth remembering that the method is not valid with the simultaneous use of nitrogen-containing fertilizers. It is worth stopping processing when the first small fruits appear.

Zelenka solution

Yeast feed. For cooking, you need to take 10 grams of dry yeast, dilute them in 10 liters of warm water, add a tablespoon of sugar. Let it brew for 2.5 hours, then dilute with 50 liters of water. Is used for rapid growth and the appearance of large ovaries.

Top dressing with brilliant green and iodine. Used to kill diseases. Roots are treated with Zelenka, for this 10 drops must be dissolved in a bucket of water. Iodine is applied to leaves and shoots. It is necessary to dilute 10 ml of iodine in 10 liters of water. Spray the culture.

tillage

Cow processing. Folk way allowing you to grow a rich harvest. It can be processed with such a tool at any stage of crop growth. Dilute a few cakes of cow dung in 10 liters of water.

Infusion of onion peel. It is necessary for her to fill a 3-liter saucepan, pour water. Leave for a day, then dilute with water in a ratio of 1:10.

Often, summer residents have a situation in which cucumbers began to grow poorly, how to feed them is easy to decide, the choice is great.

Chemicals

Preparations Kemir, Universal, Aquamarine - are used when seedlings are moved from a house from a balcony or window sill to the ground or to a greenhouse. In order for the shoots to sprout, it is necessary to dilute 5-7 grams of fertilizer in 10 liters of water, pour the hole.
Microfertilizers containing boron - when treated with such a means, the culture will begin to grow actively, it will form a large number of ovaries. Apply 1 granule per 1 liter of water.

Cucumbers tie, but do not grow: care problems

If the ovary stops when growing a crop, then this arises due to a number of reasons. These include:

Low air temperature.
Few nutrients, poor soil.
The bed on which the crop grows is located in a shaded place, because of this, the ovaries are slowly formed.
Bushes too dense.
Irrigation with cold water.
Excess or lack of moisture.
Wrong feeding.

In order to correct the situation, it is necessary to take measures:

Water only with warm water, while the amount of water should be dosed.
Who loves drafts, tomatoes or cucumbers? Cucumbers are afraid of drafts, so you should not plant them in places open to the wind.
Plant the crop only in beds open to direct sunlight.
Feed fertilizer in the correct ratio.
Treat the seeds before planting with a weak solution of potassium permanganate.
Feed the plant under the root with a solution of urea.
Trim the main stem, pinch the side ones.
Attract the attention of bees.
Treat with pesticides.

In addition, to obtain ovaries, it is necessary to attract bees. For this, they are used special formulations, which can be purchased at the store or prepared independently from sugar and lemon balm infusion.

Cucumber fruits do not grow, what should I do? First of all, you need to identify the cause of the problem.

On a note. If it grows outdoors, cover overnight with a special covering material. This will help avoid temperature fluctuations.

Cucumbers are a crop that requires attention and care to get a rich harvest. Before planting it in open ground, you need to find out what conditions the plants need, cucumbers like a draft or not, how and when to fertilize them. After that, prepare the bed, properly cultivate the land, then plant the seedlings and feed them. If cucumbers bloom, but small cucumbers do not grow, most likely the matter is in the wrong care.

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