What to do and why tomatoes bloom, but there is no ovary. Why tomatoes in the greenhouse do not form a fruit ovary Why tomatoes do not set fruit

They do not always give the required number of ovaries. And the reason often lies in the improper care of plants. To grow tomatoes, certain conditions must be met. One of them is the use of fertilizers. This helps to improve the growth of seedlings and the development of ovaries. How to process tomatoes so that fruits are tied? Read the secrets of experienced gardeners below.

For the formation of ovaries on tomato bushes in the greenhouse, a special temperature is maintained. If the microclimate in it is disturbed, this can significantly reduce the yield. If the degree is too low or high, the flowers may fall off.

Comfortable temperature for the ovary of tomatoes:

at night - from 13 to 21 ° C;
in the daytime - up to 28 ° С.

If the temperature exceeds 40°C, the flowers will begin to fall off. An increase in night temperature by several degrees can also harm the formation of ovaries. At night, tomatoes rest, and the elevated ambient temperature has a bad effect on plants.

The greenhouse needs to be ventilated frequently to stabilize the temperature. Regular watering also contributes to the formation of an optimal microclimate.

Do not forget about the possible appearance of low temperatures. So that the tomatoes do not freeze, you should take care of heating the greenhouse. You can use a special oven or electric heater.

The required humidity for the ovaries is 40-70%. If the moisture is below the desired mark, the tomatoes are sprayed in the morning. When tomatoes lack moisture, the ovaries fall off, the leaves curl, and the tops wither.

Important! In the greenhouse, you need to slightly open windows or doors so that it is well ventilated.

Nitrogen has a great influence on the formation of the ovary - it contributes to the development and formation of buds. After planting tomatoes in the ground, when the first 2-3 leaves appear, fertilizing is carried out with complex fertilizer.

Healthy tomatoes after transplanting into a greenhouse can be fed after 10-14 days. Excess feeding is bad for tomatoes. It will lead to increased growth of stems and foliage, and the development of the ovaries will be disturbed.

In order for the ovaries to form, pollination is necessary. When growing tomatoes in open ground, this process is carried out naturally (thanks to the wind).

When grown in greenhouses, tomatoes are pollinated by shaking the bushes. You can also use a fan for artificial pollination.

Why there is no ovary in the open field

The growth and development of tomatoes is badly affected by excessively high or low temperatures. Since it is this factor that can cause the absence of an ovary, we will tell you what needs to be done to correct the situation.

There are several ways to lower the temperature:

reduce the watering interval;
cover the soil with a protective layer, peat or sawdust (mulching);
stretch a shading net or cover with straw.

When it gets cold, arcs are installed on which agrofibre is stretched. For tall bushes, which cannot be covered, warm water is irrigated in the evenings or the beds are mulched with hay.

For good pollination and formation of ovaries, the most suitable air humidity is 60%.

Keeping the humidity at the right level in rainy weather is not easy, but you can use the following techniques:

stepson in time;
systematically loosen the soil;
adhere to the rules of planting (do not plant bushes too far or close);
observe the irrigation regime;
for low-growing varieties of tomatoes, it is recommended to install a canopy to protect against precipitation.

Tall varieties from bad weather can be covered with spunbond or lutrasil bags, each bush separately.

With a small amount of sunlight in plants, photosynthesis is disturbed, because of which they weaken and lose the ability to form a large number of ovaries. Therefore, during the entire growing season, it is necessary to remove the leaves from under the formed fruit brushes.

How to water the tomatoes so that there is an ovary? We will consider the methods of plant nutrition below.

How to feed tomatoes

One of the ways to feed is to water the plants with a solution containing useful substances under the root. This is a convenient and simple method, but not very effective, since it is mainly the soil that is saturated, and not the roots.

The second method is not so common - foliar top dressing of tomatoes. With the help of a sprayer, special fertilizers are sprayed onto the stem and leaves. Thanks to this method, tomatoes quickly absorb nutrients and develop well.

Important! Do not forget that tomatoes do not like chlorinated water. It is best to use rainwater, it contains all the necessary elements.

Preparations for the ovary

Many gardeners are wondering: how to water the tomatoes so that there are more ovaries? To increase the number of ovaries, special solutions are used.

There are some that you can make yourself from components sold at a pharmacy or gardening store. There are also specially made preparations for the effective development of tomato ovaries.

Boric acid

Boric acid is a functional fertilizer for tomatoes. It reduces the risk of plant disease by phytophthora.. The circulation of sugar increases, which has a good effect on the taste of tomatoes.

With the help of boron, tomatoes get the necessary trace elements from the soil. With the use of a solution containing boric acid, the number of ovaries increases.

If boron is used correctly, then the first harvest can be harvested in the last days of June. The first spraying procedure is carried out at the beginning of flowering and bud development. This process stimulates the growth and emergence of new inflorescences.

The next top dressing is carried out when the tomatoes begin to bloom en masse. This is done in order to prevent the ovaries from falling off.

Attention! The fall of the ovaries indicates an incorrect proportion or untimely feeding with boric acid.

To make the mixture, you need to stir 10 g of boric acid in 10 liters of water. The solution is sprayed in the proportion of 1 liter per 10 square meters of beds. This amount is enough to process the leaves. Boric acid mixes best in hot water.

Ovary stimulants

With the help of stimulants, you can also increase the number of ovaries. They contain natural acids, salts and trace elements that promote metabolism. Due to this, the ovary of fruits increases even in adverse conditions.

The standard proportion (for a normal crop) is 2 g of the ovary stimulator diluted in 1.5 liters of water. The procedure is performed when the ovaries appear and before flowering begins.

If your goal is to increase the yield of tomatoes, then you need to dilute 2 g of the drug in 1 liter of water. It is diluted with hot water in a container that does not oxidize. Stirring is done with a wooden stick. The mixture is applied with the calculation of 1 liter per 5 sq.m. In order to avoid mistakes when feeding plants, instructions are attached to the preparation.

Vitalizers

Natural growth stimulants include vitalizers, which contain silicon dioxide. This substance promotes the growth of crops and the abundant formation of ovaries.

Vitalizers are obtained from the juice of plantain, cypress, cedar, pine. These plants contain proteins and minerals. After applying this fertilizer, the number of ovaries, ripening and quality of fruits increase. The tool is also used when the ovaries fall off.

For preparation, the vitalizer is mixed in water, after which the product is ready for use. 20 liters of the mixture are consumed per 100 sq.m of the garden.

Vitalizer "NV-101" is one of the best means for processing tomatoes and unhindered fruit set. The seeds are processed with this substance, the soil is fertilized, and watering is carried out. The drug is applied weekly.

Gibberellic acid

With the help of gibberellic acid, the yield of tomatoes increases, since gibberellin is a hormone. The product is available in liquid or powder form. The use of the drug helps the seeds to germinate, stimulates the growth of seedlings and the appearance of the ovary.

To prepare, you need to stir 1 g of the substance in 100 ml of alcohol. The resulting mixture is stored for up to six months. After the concentrated solution is diluted with water - 50 ml of an alcohol solution per 10 liters of water. The stimulator must be used strictly following the instructions.

Feeding with potassium and phosphorus

Tomatoes need potassium for the development of the ovary. It improves taste and disease resistance.

Phosphorus protects the plant from adverse factors, improves the development of the root system and fruit set.

Top dressing is carried out in the first days of July, and after - once a month.

Folk remedies to increase the ovary of tomatoes

A good harvest of tomatoes can be achieved both in the open field and in the greenhouse. There are several secrets that will help increase the yield and quality of fruits in any conditions. How to spray tomatoes for better fruit set? We'll give you some tips.

You can make a solution for spraying tomatoes with your own hands: for this you need to add 10 ml of iodine, 10 g of boric acid, 1.5 liters of ash to 10 liters of warm water and mix well. The consumption of such a solution is 1 liter per plant.

In greenhouse conditions, tomatoes are planted in a northwesterly direction. This method allows the sun to evenly warm all the bushes. Plants will receive a sufficient amount of sunlight in the morning and not be in the shade of their neighbors in the afternoon. Due to the increased daylight hours, the yield will also increase.

Hilling will help strengthen the root system. As soon as bulges appear on the stems of crops, the first treatment can be performed. The second time hoeing is done when the color of the stem changes to brown-blue near the ground.

To prevent the growth of weeds, the formation of a crust on the soil and the exposure of the roots of bushes during irrigation, mulching is performed. As a protective layer, as a rule, sawdust, straw, compost, etc. are used.

Favorable time for feeding tomatoes

For top dressing at the root, a favorable time is early morning or evening. If you water the bushes in the open sun, this can lead to burns on the leaves.

The process of spraying tomatoes is much simpler: it is done at any time of the day without the risk of damaging the plants.

Conclusion

The formation of the ovary in the greenhouse is facilitated by the necessary microclimate, moisture and fertilizers. Special preparations help the growth and development of crops. To process tomatoes, you need to follow a number of rules.

The beds, which are well cared for and the timely provision of plants with useful substances, will ultimately provide a bountiful harvest of high-quality tomatoes.

This article will focus on the topic: tomatoes are blooming, but there is no ovary and what to do with this problem.

The first thing you need to talk about when solving a particular problem is about the reasons.

Why are tomatoes not tied?

Unfortunately, this problem occurs quite often. There may be several reasons.

Early planting of tomatoes in open ground. This culture loves warmth, any temperature deviations below the prescribed ones can cause pollen maturation to slow down. The optimum temperature is 20-25 degrees. If it falls below 15 degrees, then all processes slow down. At the same time, tomatoes also do not like heat. Temperatures above 35 degrees cause the plant to become sterile.

Wrong variety. Some types of tomatoes are too sensitive to the temperature vagaries of nature. Even small drops can ruin the crop.

Insufficient moisture is another reason that fruits do not set on tomatoes. The optimal performance is 70-75%. But it is not easy to determine by eye what the soil moisture is. This is where a simple observation comes in handy. If the leaves of tomatoes are drooping, the soil is cracked or just very dry, then it is clear that the tomatoes are suffering from a lack of moisture. Even at the stage of seedling formation, dry soil can lead to inhibition of development and subsequently to flying flowers.

Lack of wind. If the weather is calm outside, then pollination cannot occur. To solve this problem, you need to shake the tomatoes with your hands.

Seeds. Most often, tomatoes grown from their own seeds are poorly tied. This is due to the fact that the seed material was not processed from diseases. All plants that have been affected by the disease begin to drop flowers.

Thickening of landings, the presence of stepchildren. Make sure this doesn't happen.

Lack or excess of fertilizers. Tomatoes are one of those crops that take all the nutrients from top dressing as much as possible. She loves them very much. Therefore, if the soil is poor, then this can be the main reason that the tomato blooms and the fruits do not set. An excess of nitrogen, in turn, causes a raging development of green mass, while the ovary is not formed.

Let's talk about the last point, since everything is more or less clear with the previous ones.

How to feed tomatoes so that fruits are tied.

We will talk from traditional preparations and folk remedies for dressings.

Important point!

Do not overfeed the seedlings so that the tomatoes are tied faster. As mentioned above, an excess of fertilizer leads to the formation of thick and strong tops. In addition, remember that tomatoes take everything to the maximum from fertilizers.

So, you can feed the following drugs:

Top dressings such as Effekton, Ovary, Agricola, Kemira Universal are very common and in demand. They must be applied according to the instructions on the package. But at the same time, the first top dressing should not be started earlier than 3 weeks after planting in the ground. After these drugs have been introduced, you need to wait until the ovary is formed. Then add more fertilizer. You can use folk remedies and foliar top dressing.

Simple and affordable recipes from the people: these are eggshells and yeast. The first saturates tomatoes with calcium, the latter provide many useful components.

What to do as a top dressing to start tomatoes, from shells and yeast.

The recipes are very simple and accessible to everyone.

Take an egg shell, grind it and soak it in water for two weeks. After this period, a pungent odor should appear, which will signal the readiness of the infusion. Such a composition should be used for watering a tomato with water in a ratio of 1: 3.

Mix one packet of dry yeast with two tablespoons of sugar and warm water. Let it brew, then use for watering tomatoes at the rate of half a liter of infusion per one watering can.

During flowering, use a decoction of nettle, burdock and dandelion for watering. Also, all infusions and decoctions of weeds and mowed grass can be used as foliar dressings. In other words, for spraying.

Another simple and very effective method is cow dung. It can be put on the site between the rows of tomatoes. As it rains, all the beneficial substances from the manure will penetrate into the soil.

An equally effective way is chicken manure. It must be used to prepare a solution at the rate of 250 grams per bucket of water.

Important point!

All spraying should be carried out in the evening in dry weather. Do not use highly concentrated solutions for foliar dressings, such as chicken manure in water. This can lead to burns on the leaves.

In general, it is better to shed tomatoes with strong dressings near the root system, and not directly on it.

I think we answered the question: tomatoes do not tie, what to do.

Use these tips, alternating folk remedies with traditional ones, then the result will not be long in coming. Your tomatoes will give a great harvest.

To get a plentiful early harvest, many grow tomatoes in equipped greenhouses. But no matter how you nurse and cultivate the seedlings, the ovary may not form on it.

It often happens that tall healthy bushes bloom, but then the stalk turns yellow, the fruits do not set. In this article, we will consider the main reasons for this phenomenon and suggest ways out of the situation.

Do not forget that greenhouses and greenhouse structures are spaces isolated from the environment with their own microclimate, and the conditions in them are noticeably different from open ground.

Although tomatoes have long been not exotic, but a ubiquitous culture, they still retained the features of a southern plant. Therefore, for full flowering and ovary formation, special conditions are needed:

Pollination. Insects or air currents are needed to carry pollen.
The temperature regime of the greenhouse. For the formation of pollen and ovary, the temperature must be kept between + 20 - + 25º C.
Humidity. The optimal performance for the substrate is 80-90%, for air - 50-60%. In dry air, pollen germinates poorly on the pistil and falls off the flower. With more moisture, it sticks together and does not spill out of the anthers.
Timely removal of stepchildren. If you do not carry out pinching, then the tomato bush will not have enough strength to form an ovary.
Watering. During flowering and fruit formation, tomatoes have increased requirements for soil moisture. Mandatory abundant, but not frequent watering 1-2 times a week.
Light. Sun access must be provided to all parts of the tomato bush, for this, garter and shaping are performed.
Food. Organics are needed at the beginning of the growing season, before flowering. After the appearance of flowers, for better absorption of nitrogen, phosphorus, potash top dressings are introduced.

Tomatoes are self-pollinating plants that have male and female organs on their flowers. That is, theoretically, they do not need a second bush to set fruits.

Note: when cross-pollinated by insects, the number of ovaries increases by 30%.

Why tomatoes are not tied: the main reasons

If the tomatoes have grown almost to the ceiling, blossomed together, but there is no ovary - evaluate the microclimate created in the greenhouse. During budding, flowering and fruiting, this crop is very demanding on growing conditions.

temperature in the greenhouse

In greenhouse conditions, it can be difficult to keep track of the heating of the air. On sunny days, the space limited by film or glass can warm up to +40º C and above. At night, without solar heating, the temperature often drops to +12…+15º C.

Such temperature discrepancies often lead to delayed development or the absence of ovaries:

If the greenhouse is extremely hot, the tomatoes will not pollinate. With a heat of +30º C, the fertilizing properties of pollen are reduced, at +35º C, tomatoes become sterile. The heat around +40º C guarantees the shedding of flowers.
If during the day in the greenhouse it is colder than +15º, and at night +13º C, then all biological processes slow down. As a result, the maturation of pollen stops, and the development of the whole plant is delayed.
Insufficient difference between temperatures after sunset and during the day is also detrimental to the crop. If at night it is hotter than + 23-25º C, then the biological rhythm goes astray, the tomatoes do not “rest”. With round-the-clock warmth, they spend a lot of energy on supporting life. Due to this, the bush weakens, it does not have the strength to set fruit.
If the temperature difference is too great, condensation will collect on the glass of the greenhouse, which leads to an unnecessary increase in humidity.

An important point: do not water greenhouse tomatoes with excessively cold water, which happens in common water supply lines. This leads to freezing of the roots and stopping the fruit set.

Humidity control

When the flowers bloom and the pollination period begins, tomatoes do not need too humid air. In addition to violations of maturation and germination of pollen, the greenhouse effect provokes the development of fungal diseases that weaken the bush.

To obtain accurate indicators, hygrometers are installed in the greenhouse. If this is not possible, then the humidity can be determined by the folk method. To do this, squeeze the soil in which tomatoes grow in your hand. If it rolls well into a lump, and easily collapses when pressed, then the humidity is normal.

To make the air more humid, it is enough to shed water between the rows with paths. Lowering the humidity in regions with a damp climate is not so easy. To do this, you need to reduce evaporation: mulch the soil, perform ventilation, water the tomatoes drip through a dug-in bottle without a bottom.

Soil moisture

Tomatoes are drought-resistant plants, so you can’t pamper them with daily watering. With a constant excess of moisture and nutrition, only the green part grows, and the roots have no incentive to develop.

When flowering reaches its peak, the lack of moisture for fruit set begins to affect. Then, instead of forming ovaries, tomatoes begin to grow the root system, while the growth of the rest stops.

It is often not necessary to water the tomatoes in the greenhouse - it is enough to do this 1-2 times a week in the early morning to avoid condensation. Twisted leaves and a drooping top serve as a signal for urgent watering.

On a note: you need to water the tomatoes only under the root, preventing water from getting on the green part.

Pollination

If ground tomatoes are pollinated naturally with the help of insects and wind, then in greenhouse cultivation this issue cannot be left to chance.

In sunny, warm weather, be sure to open greenhouse windows for ventilation, this will allow air to flow and beneficial insects to get inside to carry pollen. If the climate does not allow this, install a ventilation system or pollinate by hand.

There are several successful ways of artificial pollination:

Shaking. Lightly shake the tomato bush while weeding or watering - this movement is enough to spill the pollen.
artificial wind. With a large number of tomatoes, it is convenient to use a portable fan.
Pollination by hand. In order to "work as a bee" you need a soft brush, which you need to easily walk through the flowering bushes. If you like to experiment, you can cross-pollinate crops of different varieties using this method.

So that as many pollinating insects as possible rush into the greenhouse during ventilation, plant honey flowers next to the tomatoes.

Please note: the appearance of the flower can be judged on the success of pollination. If the petals are wide open and bent back, the process was successful, fruits will soon be tied in place of the flower.

What else affects the formation of the ovary

To obtain a tomato crop, it is important to create in the greenhouse not only conditions for flowering and pollination, but also for the full formation of fruits.

Food

Overfeeding, like underfeeding tomatoes, leads to problems with the ovary. Despite the fact that tomatoes love nitrogen, this top dressing is introduced at the very beginning of the growing season and after tying the tomato.

If you initially overfeed the young plant with saltpeter, mullein, bird droppings, this will cause the formation of impenetrable thickets. Fruits and ovaries do not develop on fattening plants, the roots remain weak, and the few fruits are oversaturated with nitrates. With an excess of nitrogen, add phosphorus and magnesium supplements.

Note: if all the conditions are met, but the tomatoes are still reluctant to tie, there is a lack of boron.

To accelerate fruit formation, apply foliar top dressing - spray an aqueous solution of boric acid (10 g per bucket) on the green part.

Bush formation

Stabilize regularly, leaving only one stem. Otherwise, all vital resources will be spent on feeding new branches of shoots, and not on fruit set. All stepsons under the flower tassels can be safely removed.

Remove them before they have grown longer than 4-5 cm, as removing a large shoot can injure and weaken the plant. In tall varieties, when grown in a greenhouse, the tops must be pinched.

Seed quality

Often, tomatoes are tied worse if grown from seeds collected from the last harvest. When choosing seed material, it is important to consider that some hybrid forms do not produce ovaries when re-grown. On the packaging, such seeds are marked F1.

Fertility stimulants

The action of these drugs is aimed at accelerating the formation of the ovary, which is important for large volumes of cultivation. After spraying, the effect comes quickly, in addition, the tomato increases resistance to diseases and adverse conditions.

These funds contain concentrates of vitamins, natural acids and minerals, with the help of which the metabolic processes of the plant are activated.

Results: what a tomato needs to set fruits

Perfect conditions for flowering.
Pollination.
Light, air, heat.

Also keep in mind that all plants begin to produce profusely when conditions become stressful. Tomatoes are no exception, therefore, during the flowering period, do not indulge them with abundant watering and top dressing, otherwise they will “change their mind” to continue their race.

Tomatoes are one of the most troublesome crops in terms of breeding. And it's not about the financial component, but about the need for careful care for this species. The growth and development of this representative of the nightshade family is influenced by many factors, ranging from climatic conditions to

And yet, even with the careful implementation of all agricultural practices, many gardeners are faced with the problem of the lack of formation of ovaries, despite the fact that flowering went well. Before proceeding with the solution of this problem, it is necessary to find out the cause of what is happening.

The main reasons for the lack of ovaries

What to do if the ovaries dry? Read about it below!

There are several main reasons for the lack of ovaries on tomato bushes.

Additional reasons

In addition to the main prerequisites for the absence of ovaries, there are a number of additional factors:

Having found out the reasons, you can begin to solve this problem.

What to do?

First of all, do not rush to plant seedlings in open ground. It is better to wait until the threat of return frosts has completely passed.

Controlling temperature and humidity is easiest in greenhouses. There you can put heaters or organize additional ventilation. But what to do with plants in the open field?

Folk ways

Increased alkali

Active liming can lead to an increase in alkali content.

As a rule, the application of superphosphate can partially solve this problem, but a more accurate adjustment of soil pH will have to be carried out after harvest.

Startup (thickening)

These bushes are thrown to the "arbitrariness of fate"!

The launch of plantings can lead to the active growth of the ground part of the bush, namely the foliage, which over time prevents the penetration of direct sunlight. Thinning will easily solve this problem.

Fungicides and diseases

Beginning gardeners, fearing pest invasions, are often addicted to chemical fungicides, while violating the instructions.

Do not forget that you can not independently change the dosage and frequency of use of any drugs, especially the chemical type. All this can lead to a decrease in yield, and sometimes to the death of the crop itself.

At the same time, it is necessary check regularly for signs of disease or insect activity . If drugs cannot be used, then you can turn to folk methods of struggle.

Regular inspection of the plant will help to identify dangerous diseases in the early stages.

Top dressing and its nuances

For the entire growing season, top dressing of tomatoes is carried out 4 times.

2 main top dressings are carried out at the beginning of the flowering stage and the moment the ovaries are formed. In the absence of fertilizer and a lack of nutrients, a barren flower is formed. In addition, future fruits will be significantly inferior in size, and have a small number of seeds.

Fertilizers needed for tying tomatoes, must contain the required amount of micro and macro elements . All top dressings used during this period can be divided into mineral and organic.

mineral

When choosing this type of fertilizer, you should pay attention to the following types:

Superphosphate in granules with the addition of phosphorus. The degree of concentration should not exceed 18%.
Double superphosphate with the addition of phosphorus and a concentration of 40 to 50%.
Potassium salt containing up to 42% pure potassium element.
Potassium sulfate (45–56%).

When purchasing fertilizers, you need to pay attention to the content of elements in them. It often happens that the composition of the same drug, produced by different manufacturers, is significantly different.

But drugs are also very popular:

Kemira Lux(full complex of necessary elements, easily soluble in water).
Senior Tomato (replenishes the deficiency at the time of inflorescence formation, contains additional nitrogenous bacteria and humic acids).
Effecton(contains oil shale ash, phosphorus flour and specialized bacteria, guarantees a high yield).

organic

Adherents of organic farming do not use chemical complexes, preferring natural top dressing. Here are some popular types:

Humates. This type of organic matter improves the structure of the soil, stimulates the development of beneficial microflora. With the help of humates, high yields can be obtained even on depleted soils. The most famous are Universal and GUMI Kuznetsov. The substance is diluted according to the instructions and used as a root dressing.
. It has long been known and widely used fertilizer. Helps plants improve adaptive qualities and gain growth rate. Yeast lasts about 3-4 weeks. Prepared at the rate of 100-150 grams of fresh product per 1 liter of warm water. As soon as the solution begins to ferment, it is brought to 10 liters and used when watering under the root.
Yeast top dressing is useful at all stages of tomato development, but is most effective for seedlings and young plants.
Ash. It is not only an excellent source of substances such as calcium, magnesium and phosphorus, but an effective natural remedy against pests. Ash can be scattered both in dry form and prepare a solution for root dressing.
. Another well-known folk remedy. This drug perfectly stimulates the formation of ovaries. For irrigation, 6-8 drops of the substance are taken per 10 liters of water and 0.5 liters of whey. If spraying is supposed, then 30 drops of iodine are diluted in 1 liter of whey with the addition of 1 tbsp. spoons of hydrogen peroxide. The mixture is brought to 10 liters and poured into the sprayer.
herbal infusion . Weeds are finely chopped and placed in any container, filling it by a third, then poured with water and left to roam in the open sun for 10-12 days. After fermentation, the resulting solution is taken in a ratio of 1: 9 with water and tomato bushes are shed.
The effectiveness of herbal infusion is comparable to a solution of mullein.

conclusions

The absence of ovaries on tomatoes is not yet a sentence for a low yield. Timely measures taken and carried out top dressing can even out flowering and fruit set. However, it is best to strictly follow the rules of agricultural technology throughout the growing season.

Video on how to increase the ovary on tomatoes

Tomatoes are a favorite agricultural crop of gardeners. To get an early harvest, in most regions of our country they are grown not only in open ground, but also in equipped greenhouses.

However, here gardeners may be faced with a difficult question: “Why are tomatoes not tied or tied poorly in a greenhouse, what to do and how to save the crop?”.

It is sometimes difficult for an inexperienced summer resident to “please” tomatoes. It is especially important to take into account all the features of the plant during its flowering and fruit set:

best fruit setting occurs at a temperature of +21 - +23°C;
comfortable air humidity in the greenhouse is 60%;

Early flowering tomatoes in the greenhouse

tomatoes require watering only at the root (so that water does not fall on the stems, leaves and flowers);
watering plants at the flowering stage should be infrequent (a couple of times a week), but plentiful;
frequent loosening of the earth is required;
soil mulching is welcome.

Violation of the temperature regime in the greenhouse

Tomatoes are very sensitive to temperature. Therefore, even in a greenhouse, you need to carefully monitor changes in air temperature. After all, it is precisely its fluctuations that often become the main reason that, after flowering, fruit ovaries do not form on the bushes.

Scheme: how a tomato flower works

Important! A clear sign of a lack of heat will be that the stems and leaves of the plant develop too intensively, but the flowers are weak.

If the plant is too hot during the flowering period, then the flowers will not be pollinated. The fact is that at temperatures above + 30 ° C, the pollen of a plant loses its fertilizing properties. Even overheating for 1 day will be enough for the tomatoes to lose their ability to set fruits.
Too cold for flowering tomatoes will be air, the temperature of which is below + 15 ° C. In this case, the plant will stop its growth, the development and fertilization of flowers will not occur.
At night, it is important to ensure the optimal temperature in the greenhouse and access to fresh air. If the plant overheats at night, it will spend too much energy and nutrients to maintain life; on a weakened plant, fruits will not be tied after flowering. If it is quite cold at night, then heating should be turned on in the greenhouse: after a hot day, condensation may form on the bushes, and the humidity will rise sharply.

Advice! For watering tomatoes in a greenhouse, do not use too cold water, this can lead to freezing of the plant's roots and disturbances at the time of fruit set.

Moisture control when setting tomatoes

Tomato flowers that did not produce fruit

A significant increase in air humidity in the greenhouse will inevitably lead to the absence of ovaries on tomatoes - the flowers will simply begin to crumble. The fact is that, saturated with excess moisture, the pollen sticks together and loses the ability to get enough sleep from the anthers, which means that pollination cannot occur. Excess moisture can form in the greenhouse after watering: if the windows are closed, moisture begins to settle on the leaves and flowers of the plant - this phenomenon is called the greenhouse effect.
On the contrary, if the air in the greenhouse is too dry, then the pollen that has already landed on the pestle will not be able to germinate. However, after the fruits have set, the plant will normally be able to tolerate short-term dry periods.
To increase the humidity of the air and slightly reduce the temperature, you can pour cold water on the paths in the greenhouse. However, such humidification can be carried out only in the first half of the day, so that the evaporation of moisture at night does not create a greenhouse effect in the greenhouse.

Important! If you notice that the plant has drooped, and its leaves begin to curl, this is an alarm signal and a sure sign of a lack of moisture.

"Nutrition" of tomatoes in the greenhouse

Even during the period of planting seedlings in the greenhouse, many gardeners make a serious mistake - they overfeed the young plant with fertilizers. Often used mullein, bird droppings, urea or saltpeter - fertilizers containing a large amount of nitrogen. After all, it is difficult to resist top dressing when, after it, the seedlings grow stronger and grow literally before our eyes. However, such growth of the leaf mass under the influence of nitrogen leads to the fact that the fruits on the bush are not tied, and the roots of the bush become weak.

Strong flowering tomato brush

Therefore, it is very important to know that fertilizing with nitrogen-containing fertilizers can be carried out only after the fruits have set on the bushes. In this case, the beneficial substances will go not into the growth of leaves, but into the development of fruits.
Another problem is the decrease in the amount of potassium in the soil during fruit set. As for urea, it is used for depleted soils, so there is no need to use urea in the greenhouse.

What to do if the plant is overfed with fertilizers

If you notice that all the strength of the plant goes into the leaves, and the flowers are weak and do not pollinate, you must:

temporarily stop watering tomato bushes;
ventilate the greenhouse well so that the air becomes drier;
carry out foliar and root dressing of tomatoes with phosphorus fertilizer;
remove some of the leaves, especially those that cover the flowers from the sun and air access.

A plant overfed with fertilizers has large succulent leaves and weak flowers.

Pollination of tomatoes in the greenhouse

If tomatoes are grown in the ground, then their pollination occurs naturally: wind and insects carry the pollen. However, if you are growing a crop in a greenhouse, you cannot ignore the issue of pollination.

Natural pollination of tomatoes in a greenhouse

In the warm season, greenhouses must be opened for ventilation and access of beneficial insects. And if the air temperature outside is stable and stays within +20 - +26°C, then you can leave the greenhouse open even at night.
In the cold season, when tomatoes are grown in a heated greenhouse, artificial pollination should be carried out, and the ventilation system should also be taken care of.

Advice! To attract bees for natural pollination of tomatoes, plant honey plants in the greenhouse or simply bring flower pots.

How to artificially pollinate tomatoes in a greenhouse

If you notice that natural pollination does not occur, and there is no ovary on the tomatoes, then take measures for pollination by hand. There are several effective ways to do this:

Lightly shake the tomato bush or tap its main stem. Often such a slight movement is enough to wake up the pollen.
You can create an artificial gust of wind with a fan. To do this, turn on the device and walk with it along the rows of tomatoes.
The oldest method of hand pollination involves the use of an ordinary brush. This way you can transfer the pollen to the pistil of the flower.
Some gardeners use an electric toothbrush for manual pollination. Turn on the device and bring it to the flower (do this carefully so as not to damage the plant). The vibration of the brush will help carry the pollen.

Important! Visually, you can determine whether the flower is pollinated. If pollination has occurred, the petals of the flower will be opened and deflected back.

It is very important to water the tomatoes after pollination, and also lightly spray them with a spray bottle - this will create the air humidity necessary for pollen germination.

Formation of a bush for setting fruits of tomatoes

Even if everything is in order with the temperature and humidity in the greenhouse, fruits may not be tied on the bushes. And the problem may lie in the plant itself, or rather, in the mistakes of inexperienced gardeners.

Removal of tomato flowers damaged by a fungal disease

Many hybrid varieties of tomatoes cannot be grown from their own seeds - such plants will not produce ovaries.
Spraying with pesticides during the flowering period will certainly have a negative impact on fruit set (pollen will lose its productivity).
It is necessary to carefully monitor that harmful insects or fungal diseases do not appear on the bushes. A weakened plant will not produce fruit ovaries.
Tomatoes should have enough sun, so you need to equip a greenhouse on the sunny side of the site, as well as plant bushes so that they are not crowded and do not block the light from each other.
Leave one stem on each bush, pinch - this will make the bush stronger and prepare for fruit development.

How to process tomatoes for fruit set in a greenhouse

In order to increase the yield of tomatoes, experienced summer residents recommend spraying them with a solution of boric acid during flowering. To do this, you need to dissolve boric acid powder (10 g) in one bucket of warm water.
A lack of phosphorus can be detrimental to bushes. To feed the tomatoes, you need a superphosphate extract or phosphate fertilizer.

Mineral fertilizers for tomatoes

To obtain an extract of superphosphate, dilute it (3 tablespoons) in a liter of warm water. And then let the composition brew for two days. Don't forget to stir the solution. Then remove the sediment, and the resulting tincture can be fed to the plants: 1 liter under the root.
Phosphate fertilizer can be bought at a specialized store. It contains 50% phosphorus and 40% potassium. The powder dissolves quickly in water and is immediately ready for use.

Advice! Root dressing is applied after the bushes are watered with plain water.