Recipe for spraying a tomato with boric acid. Boric acid: application of fertilizer for plants in the garden, vegetable garden and greenhouse. Boric acid: beneficial properties for plants

When growing tomatoes and other vegetables, novice gardeners may encounter a lot of incomprehensible phenomena, such as the absence of ovaries, poor germination, irregular shape fruits or poor ripening.

This means that the beginner has not fully figured out what kind of soil he has on the site, what are its advantages and disadvantages, what fertilizers will help the proper development of plants, and which ones will not. Carried away by complex mixtures, summer residents forget about organic matter and microelements, and the success of agriculture depends on their presence in the soil.

Boron is one of the most important trace elements that accompanies the plant at all stages of development - from seed to fruit. If used regularly, you can significantly increase the yield and prevent the risk of developing a fungal infection. But it is necessary to apply in exact dosages and at the time when the plant most needs a microelement.

What soils are deficient in boron

To begin with, it is necessary to determine on which soils boron deficiency is most common. The fact is that the symptoms of calcium boron deficiency are very similar. In both cases, the apex dies off, that is, the growth point does not develop, it dies. The trace element belongs to those species that are not able to move inside the plant, so the situation is better in old leaves than in young ones.

If the soil on the site is swampy, acidic, then it is more likely that the lack of boron will manifest itself brighter.

Boron deficiency in tomatoes - signs

Boric acid for tomatoes is a substance in the presence of which the plant blooms well, holds inflorescences, from which fruits are then tied. Given that flowers are a point of growth, then with boron deficiency they will not appear or simply fall off. There will be no mention of any harvest.

Top dressing or spraying a tomato boric acid and iodine for the ovaries during the flowering period provides a full pouring and ripening of the fruit. The same thing happens with cucumbers, peppers, zucchini.

If it is noticeable that the top of the bush withered even before flowering, although before that everything was fine, this means that the microelements in the soil have run out and it is necessary to feed. At the same time, the bush begins to actively expel side shoots, bushiness appears. The leaves also change their shape, becoming curly.

For tomatoes and other plants, boric acid is used, bought at a pharmacy in the form of a dry substance. Also suitable for complex liquid solution trace elements, but it will be more expensive.

In order to completely eliminate the deficiency of trace elements, at the same time to introduce organic matter into the soil, it is recommended to treat the tomatoes with boric acid, iodine and ash at the same time. The fact is that the ashes contain full complex trace elements that plants absorb from the soil and then drop to the ground in the form of leaves.

Another useful trace element in the ashes is calcium, without which to get beautiful fruits almost impossible. If you burn wood, you will get more calcium. Ash top dressing can reduce the acidity in the area and thereby increase the yield.

Spraying tomatoes with boric acid improves the taste of vegetables, as more sugar is formed in the fruits. This is also reflected in the seeds: if you collect them and plant them on next year, then the germination will be much higher - about 30 percent.

Preparing food at home

Boric acid for tomatoes and cucumbers is diluted in different ways. It depends on how the solution will be used. To prepare the seeds, a lower concentration is used, but tomato seeds are kept in solution for a day, and cucumber seeds for 12 hours. To do this, add 0.5 g of boric acid per liter of water.

  • Take by 0.5 g of boric acid, zinc sulfate and copper sulfate.
  • Add 1 g of potassium permanganate.
  • Water - 1 liter.

In order for boric acid to dissolve well, the water must be heated to 70 degrees, pour in the powder, and then add all the other components.

How to feed tomatoes boric acid and iodine:

  • Heat a liter of water up to 70 degrees.
  • Add acid, stir.
  • Cool down and drip 3 drops pharmacy iodine.

This is a spray solution. For watering, you can add 10 drops of iodine.

Video: Boric acid for tomatoes

Ash solution is prepared as follows:

  • Pour a liter of ash into a bucket of water. It is desirable to grind it.
  • Insist 3 - 4 days.
  • Strain and pour into a spray bottle.

In addition to top dressing, ash and powder protect plants from fungal diseases and pests.

Watering with a solution - how to do it right

Watering the plants can begin when the seedlings are transplanted into open ground. It should take 2 weeks from the moment of transplantation. The solution is better to make complex. For example:

  • Prepare the ash solution according to the recipe described above.
  • Separately, dissolve boron powder in hot water - 5 g- and pour into the ashes.

For each young tomato bush, about half a liter of nutrient fluid should be consumed. For mature plants, the concentration can be twice as high. Before watering, the soil is moistened to eliminate the risk of burning the root system.

The bed can be prepared in advance - before planting seedlings. All activities are preferably carried out on a cloudy day, but warm weather. If it rained - well, no need to spend extra water.

The entire area is evenly watered with a solution of boric acid and water - 5 g per 10 liters. Consumption - 1 liter per square meter. To save the solution, it is necessary to think in advance where the bushes will grow and where the aisles will be.

Important! It helps to treat potato tubers with boron even before planting. It protects the bushes from scab

spraying

If plants have a high need for boron, then it is better to carry out both watering and spraying in different time. A high need is manifested in beets, cabbages of all kinds, as well as stone fruit trees.

Vegetable crops, including cucumbers and tomatoes, are experiencing average requirement in a trace element, so watering and spraying alternate. Since the foliar treatment immediately puts the solution in the right place, that is, at the growing point, the plant quickly restores balance and continues to grow and bloom.

Especially useful outside root top dressing in greenhouses. Warm wet air ensures the active movement of the microelement to the point of growth, so the yields are usually higher than in open field where the main factor is watering and climate.

How to dilute boric acid for spraying tomatoes:

  • If the ovaries have already formed, but begin to crumble, then 1 g of powder is dissolved in a liter of water and spray immediately.
  • If signs of phytophthora appear, then the diseased plant is removed from the root, burned, and for the rest they make a series of sprays: first, the leaves are treated with potassium permanganate, then a week later 1 teaspoon boron powder dissolve in a bucket of water and carry out foliar treatment, after a week they are sprayed with a weak solution of iodine.
  • For seedlings or berry crops you need to make the weakest solution - 0.5 g per 2 liters of water. In berry growers, the need for boron is low, but with a lack of it, cultures get sick very quickly.

In order not to miss the moment, it is necessary to observe the plants. If the top wilts, you can start processing on the leaves.

Seed preparation

Boron is used before planting seeds. To improve germination, you need to make a weak solution of boric acid and leave tomato seeds for a day. Other plants - zucchini, cucumbers, cabbage - for 10 - 12 hours. Can be combined infusion onion peel and ash by adding boron powder.

Growing vegetables or fruits in a garden garden plot includes more than just planting and harvesting. It also requires constant watering, top dressing, as well as protection from diseases. Tomatoes, like other vegetables, need additional feeding, which has a positive effect on their growth. That is why experienced gardeners often use boric acid spraying for tomatoes. And how to do it correctly, you can find out further.

Gardeners with experience are aware that tomatoes are plants that do not need an additional stimulus for growth if they are planted in accordance with the rules. Along with this, even when applying fertilizers, it is not always possible to control the content of boron in the soil.

Boron is an important chem. element for plants. So, after top dressing, the synthesis of nitrogenous substances returns to normal, metabolic processes improve, and the concentration of chlorophyll in the leaves increases. If we talk about boric acid, then this is a simple chem. boron compound, which is a transparent substance that looks like scales. It is easy to dissolve in liquid; acid properties minimal.

When there is enough boron in the soil, the yield increases, the tomatoes become resistant to negative conditions.

Boron belongs to the lowest hazard class, therefore, if the solution gets on the skin of a person during operation, there will be no burn. Along with this, boric acid tends to accumulate in the body, due to the fact that it is naturally excreted rather slowly.

The role of boron in the process of growing tomatoes

During the growing season of tomatoes, boron:

  • takes part in the construction of cell walls of the vegetable;
  • controls the supply of calcium to the plant. a lack of given element can cause diseases such as blossom end rot;
  • positively affects the growth of each part of the tomato, as it is responsible for the process of growth of the tips of the stems, leaves, and roots;
  • affects the rate of emergence of new cells;
  • controls the process of transporting sugar from mature tomato points to developing ones;
  • helps the growth of fruits, the laying of the next buds, and also contributes to the successful pollination of plants;
  • takes part in the process of photosynthesis.

How does a lack of boron manifest itself in tomatoes?

If a plant is deficient in boron, the following happens:

  • the growth of the root and stem stops;
  • chlorosis forms on top of the tomatoes, and the plant turns yellow, decreasing in size;
  • the number of flowers begins to decrease sharply, they are not fertilized, and inflorescences are not formed;
  • appearance vegetable also leaves much to be desired, inside the fruit you can find corked areas.

In general, we can say that the growth of tomatoes stops, and it is unlikely that it will be possible to get a full-fledged crop if appropriate measures are not taken.


Signs of an excess of boron

Sometimes it also happens that an excess of boron occurs in the soil, which also negatively affects tomatoes, in particular, their vegetation.

Advantages and disadvantages of using the tool

Boron for this vegetable - important element in its development, so if there is a shortage in it, this will seriously affect the development of tomatoes. Boron is able to significantly increase flowering and also prevents fruit rot during periods of high humidity that occur.

When using this drug, the yield, as a rule, increases by 20%, and taste qualities are also greatly improved.

Tomato spraying procedures with boron allow the vegetable to better absorb mineral and organic matter, which is important, especially when it comes to growing at home, for example, on a balcony. So, such vegetables are more sensitive and, as a result, need more nutrition. While the process of treating the bush with boric acid is taking place, the risk that the vegetable will be affected by late blight is significantly reduced.


If we talk about the cons, boron in excess in the soil is quite dangerous. So, for example, it can cause a burn of the lower leaves, drying out of the sheets along the edges. That is why, if you decide to use the drug, carefully monitor the required dosage so that all proportions correspond and do not exceed the permissible limits.

How to properly dilute boric acid for chem. tomato processing

The most relevant question is in what proportions it is necessary to dilute boric acid in order to obtain a mixture for spraying tomatoes. By the way, this question is really important, since two goals are pursued here at once: boric acid must sufficiently provide the tomatoes with the necessary nutrients; a ripened vegetable treated with a solution should not be harmful to the human body.


As a rule, in order to obtain a solution that is safe for humans and plants, it is necessary to take a 0.1% solution of boric acid and dissolve it in warm water, and the liquid must be clean and without the addition of chlorine. As for the dose, for top dressing they take the usual ten-gram package of boric acid and dilute it in ten liters of water.

However, in practice, this amount is quite a lot for a one-time top dressing, so you can make half the amount.

Methods and technology of work

seed soaking

Seeds are soaked mainly to stimulate their germination. To do this, you need to make a solution in the following ratio: 0.2 grams of boron per 1 liter of water. Tomato seeds are soaked overnight.


Soil pre-treatment

The soil is also treated with boron to prepare it for sowing. To do this, 0.2 grams of boric acid is dissolved in 1 liter of water. Immediately before planting tomatoes, the beds are watered with a prepared solution. In addition, this method is used if there are suspicions that the soil contains an insufficient amount of this microelement.

Root top dressing

Exactly the same solution as described above is used for watering tomatoes at the root, however, spraying the leaves will be the most effective measure. The fact is that often this type of top dressing provokes burns of the root system, therefore, if it is used, then the plant is first watered with plain water.


foliar top dressing

For foliar feeding per 1 liter of water, it is worth taking 0.1 grams of boric acid. The first time spraying is carried out in the budding phase, the next - during flowering and even at the time of fruiting of the plant. If other trace elements are used simultaneously with boron, its concentration is reduced to 0.05% and diluted already in 10 liters of water.

Spraying a tomato with boric acid concentrate for the ovary

First, spraying is done during the emergence of buds, then at the flowering stage and, finally, in the phase when the tomato begins to bear fruit. If, along with this component, another top dressing is used, the boron concentration is reduced in the same way as in the previous version.


Against late blight

To overcome late blight, you need 1 teaspoon of the product, which dissolves in a bucket of warm liquid. The resulting solution must be treated with a plant. To make the effect better, it is worth treating the tomatoes with a mixture of potassium permanganate about a week before such a spraying. After the tomatoes are treated with boron, after 7 days they are additionally sprayed with a weak solution of iodine.

Against garden ants

Bor like chemical drug, used in horticulture, is often used as an ant or cockroach remedy. So, dry baits with acid act as a contact-intestinal poison. If we talk about the combined action, then it appears only after some time, that is, we are talking about a cumulative effect.


Greenhouse processing methods

For tomatoes grown in greenhouse conditions, boric acid is particularly necessary. Such vegetables tend to grow weaker than those grown in open ground. Spraying fruits with boric acid allows you to strengthen them in a matter of time, contribute to the growth and growth of green mass.

Also, such top dressing is used if the leaves of greenhouse vegetables begin to curl or even crumble. In this embodiment, the drug is best combined with components such as urea or mullein. Some experienced gardeners use a trace element for soaking before sowing, as mentioned earlier, but in greenhouse conditions this measure is most relevant.


Safety measures when working with boric acid

The main rule when working with chemical compounds is to comply with safety regulations. So, before starting work, you need to take care of your own protection and prepare a respirator, goggles, rubber gloves and an apron.

If the processing of plants takes place in a greenhouse, then the means personal protection are definitely needed, since in such enclosed spaces the vapors of the solution are highly concentrated and, inhaling them, a person can get irritation or burns of the mucous membranes.

How long is the finished solution stored

In general, boric acid solution has no shelf life. From the moment of its preparation, it does not lose its properties, so it can be safely stored until the next moment of plant processing.

What effect can be expected after application

So, what do we get in the end, after we process the tomatoes. And we get the following:

  • strong and nourished seedlings;
  • active growth;
  • active flowering;
  • a large number of ovaries;
  • absence or minimal presence of rotten fruits.

The most common way to apply boric acid for tomatoes involves spraying them - spraying the solution over the green mass of the bushes.

The main advantage of spraying is considered to be fast and effective action: the desired result can be seen within a few hours after treatment.

Boric acid is the most popular fertilizer for tomatoes. The main active ingredient - boron - is one of the most important micronutrients for crop nutrition and is necessary for it until harvest.

The beneficial properties of boric acid for tomatoes depend on the goals of the gardener. Timely spraying with boric acid allows you to:

  • get a harvest a little earlier than the varietal terms;
  • increase the yield of tomato bushes by 20-30%, regardless of the variety;
  • improve the taste and commercial varietal characteristics of fruits;
  • form the resistance of tomatoes to adverse growing conditions;
  • effectively fight tomato late blight.

Most often, spraying tomatoes with an aqueous solution of boric acid is carried out in greenhouses, since greenhouse representatives of the culture are not as strong as soil bushes, they need more careful care and top dressings.

Feedback on the use of this drug is very good.

When to Spray

Do not know why to carry out this procedure?

The fact is that spraying tomatoes with boric acid is considered especially effective at the stages of flowering and fruiting of the crop.

It also usually occurs in the second half of summer.

Thus, foliar is carried out for tomatoes in the adult state.

Receipt deposit high yield- Abundant flowering of tomatoes and the ability to form fruits in flowers. It is boric acid that is most often used by gardeners.

Spraying the flower brushes until the flowers open stimulates the abundant flowering of the bushes - after the treatment, after 2-3 days, many additional yellow flowers form on them.

Spraying should be repeated after a couple of weeks during abundant flowering tomatoes - such processing(there are no empty flowers, a tomato is formed in each flower).

Additionally, spraying flower brushes with a solution of boric acid prevents the flowers and first ovaries from drying and falling off under unfavorable conditions for growing tomatoes.

Efficiency was shown by spraying with the drug at later stages of crop development - during fruiting. If you spray the solution on ripening, still green fruits, then by the time they are removed, they will accumulate sugar and acquire a special sweetness. This technique allows you to get very tasty and fragrant fruits.

In the fight against late blight on tomatoes, liquid boric acid exhibits its fungicidal properties and stops the spread of the disease to new areas. The greatest effect from the use of boric acid in this case is observed in the early stages of the development of late blight.

How to dilute and spray

To obtain the expected effect, you need to properly prepare the working solution of the drug, as well as take into account some of the nuances of processing.

Not sure how much powder to add and? Read on, we will answer this question.

The dosage is as follows. prepare an aqueous solution of boric acid according to the following recipe: 1 gram of powder is diluted in 1 liter hot water, the temperature of which is not less than 50 degrees C.

Then the liquid is cooled and sprayed warm on the bushes. In order not to measure such a small amount of powder from the total package, you can dilute the entire pack (10 grams) in 1 liter of water, then dilute to the desired volume - pour into 9 liters of liquid. You can calculate the approximate cost yourself.

Important! An increased concentration of the prepared solution can cause a burn of the green part of the plants. Also, the risk of burns occurs when diluting boric acid in cold water- undissolved crystals of the drug burn through the tissues of the bushes.

For spraying, you need to pick up a non-hot day. When is the best time to spray? Usually the solution is sprayed in the morning and evening, when there is no scorching sun. Cloudy days are an exception. At the same time, it is important to remember that spraying with boric acid will not bring any effect during rain and wind.

The very process of applying the working fluid to the treated surfaces of tomatoes is a plentiful spray using a spray gun with small holes: you need to moisten the leaf plates, stems, flower brushes, fruits well with a solution, while preventing it from draining from them.

If sprayed in accordance with all instructions, then after 3-4 hours the appearance of the plants will improve.

How often can you spray

In order to avoid a deficiency of boron or, conversely, its overabundance, it is necessary to feed the microelement with a certain frequency.

The minimum recommended number of sprays with a solution of boric acid is 2 times (during the flowering of the crop), and the maximum is 5 times (taking into account its application at the fruiting stage, with the possible occurrence of phytophthora and boron deficiency).

Important! The break between successive sprayings with an aqueous solution of boric acid should be at least 10 days.

Security measures

Boric acid in small quantities does not cause any harm to the human body - the substance belongs to hazard class 4 and is considered safe - it does not cause a reaction when it comes into contact with the skin.

At the same time, boron is distinguished by its ability to accumulate in the human body, therefore, when working with boric acid, it is recommended to stock up on gloves and special clothing. When spraying, it will not be superfluous to have a respirator.

Boric acid is highly flammable, so the solution should only be prepared away from open fire. Can I smoke during treatment? No, smoking is also prohibited.

Timely spraying with boric acid is a guarantee high yield tomatoes. Many gardeners have long opened beneficial features of this agent and annually use it in the cultivation of tomatoes both in greenhouses and in the open field.

Useful video

In the next video - opinion experienced gardener and a story about the results of processing. We strongly recommend watching.

Tomato care includes regular fertilization of vegetables during the growing season. Processing tomatoes with boric acid is the most convenient and effective method their feed. Boric acid is a top dressing that can be called universal. It supplies tomatoes with boron and at the same time fights late blight.

Today you can find many various fertilizers for tomatoes. One of them is boric acid. Its role is difficult to overestimate. Boron helps plants to take the nutrients they need from the soil. Top dressing with the use of boric acid helps to increase the number of flowers, accelerates the formation of ovaries, preserves all formed ovaries, prevents rotting of tomatoes, improves their taste (saturation of tomatoes increases with sugar). Therefore, top dressing with this remedy is recommended several times a season.

The first time the nutrient solution is used during the preparation of seeds for planting. Before planting, tomato seeds should be soaked in an acid solution for 24 hours. To do this, take 0.2 g of boric acid and dissolve in 1 liter of warm water. So that the seeds do not float up, they are lowered into the solution in a gauze bag. Such soaking increases the germination of seeds.

The second use of this substance is when the soil is cultivated before sowing. The day before planting seedlings or seeds, the nutrient solution is introduced into pre-prepared pits in which seedlings or tomato seeds are planned to be planted.

At good care from 1 m² of beds, you can collect up to 50 kg of tomatoes.

Features of feeding with boron

Fertilizing the soil with fertilizers, and later processing the foliage, will saturate the plants useful substances which will improve the yield. The use of boric acid will allow you to get the first fruits at the end of June. It is only necessary to apply fertilizer correctly and accurately.

If suddenly, after the first feeding, the seedlings began to look bad, you need to stop using this remedy. The dose may have been accidentally overdose. If the plants tolerated the first feeding well, re-treatment should be carried out only after 10 days, not earlier.

It should be noted that violation of the dosage, excessive use of boric acid can harm this vegetable. In addition, health problems may appear after eating vegetables, since the substance is poorly excreted by the kidneys and can accumulate in the body.

Therefore, the use of such dressings should be carried out with caution and compliance with dosages. Tomatoes are treated with boric acid in the morning or evening hours or in cloudy weather, when the sun does not shine, there is no rain and wind. Spraying should be done using fine spray devices.

Foliar top dressing of tomatoes with a solution of boric acid (video)

When to Process Tomatoes

With a boron deficiency, tomatoes will not give a high yield, because some of the fruits from a lack essential substances rot and die just on the bushes.

It is very important to understand exactly when the plants need to be sprayed with boric acid. Acid is usually applied to initial stage development of plants, and before the flowering of tomatoes, it is no longer applied. During the flowering period, acid in the form of fertilizer is also not used, as this can slow down the development of plants and stop the growth of bushes.

With the advent of ovaries, fertilizing with boric acid is resumed. Fertilizer in the form ready solution You can buy it in gardening stores, or you can make your own. To do this, take 1 g of acid and dissolve it in 1 liter of hot water (not boiling), since the powder does not dissolve in cold water. The prepared solution of the plant must be sprayed with a spray bottle.

The same solution can be used to water tomatoes under the root, but spraying the leaves is more effective. In addition, root dressing with acid can cause a burn of the root system, so the plants must first be well watered with ordinary water, and only then watered with fertilizer.

Top dressing with boric acid (video)

How to determine the lack of boron?

Vegetable growers can easily determine the lack of boron in plants. Yellowed leaves are one of the symptoms. Gardeners often perceive yellowed leaves as a lack of nitrogen. And this is a mistake. It is necessary to look at which leaves turned yellow - upper or lower. With a lack of boron, the upper leaves turn yellow, and with a lack of nitrogen, the lower ones.

In addition, when examining tomatoes, curling leaves are visible. This means spraying the plant stems with boric acid. If the leaves crumble, you need to feed, this will strengthen the tomatoes, ovaries and fruits will begin to appear on the stems. At the same time, it is recommended to feed the tomatoes with urea and mullein solution.

Treatment with fertilizers with boron has a double effect: it supplies plants with useful substances and at the same time fights against late blight. In order to prevent the development of this disease, proceed as follows: after the formation of ovaries, tomatoes are first sprayed with a weak solution of potassium permanganate, after 7 days - with a solution of boric acid, dissolving 1 tsp. powder in 10 liters of water. After another week, the plants should be sprayed with a weak iodine solution. All these activities will help to completely protect tomatoes from late blight.

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Modern fertilizers are increasingly replacing time-tested substances. The effectiveness of using boric acid for tomatoes has been known for a long time. From the article it will be possible to learn about the rules for the use of top dressing and contraindications.

Using modern fertilizers, gardeners often forget about the simplest, most affordable and no less effective means. Boric acid is one such fertilizer, the use of which in the garden can increase the yield and health of plants. Boric acid is often used for tomatoes, spraying it helps to accelerate ripening and increase the number of ovaries.

Boron is one of the elements necessary for the full growth and ripening of tomato fruits. Before you start using boric acid in a garden plot, you should understand how it affects the quality of the crop.

  • Increase in the number of ovaries. The use of boron as a fertilizer increases the number of ovaries and accelerates the formation of tomato growth sites. Thus, the potential amount of harvest on each treated bush increases.
  • Increase in sugar content. Chemical processes in tomato fruits under the influence of boron-based fertilizers lead to an increase in sugar levels. The taste of tomatoes becomes richer and sweeter. At the same time, its natural taste parameters are not lost.
  • Assimilation of nitrogen. A sufficient amount of boron in plants allows better absorption of nitrogen compounds. After treatment of plants with fertilizers, they quickly acquire a healthy appearance. The applied boric acid for tomatoes (spraying) for the ovary allows you to get beautiful and healthy tomatoes in large quantities.
  • Increase natural immunity. A sufficient concentration of boron in plants improves not only the external, but also the internal condition of tomatoes. healthy plants resist better various diseases and pests, which means that there is no need to use hazardous chemicals.

Too much boron in plants

Despite the beneficial effects that appear when using boron as a fertilizer, such top dressing should be used only when it is deficient in the soil. Oversaturation with boron leads to negative consequences.

A large amount of boron in the soil contributes to the appearance of foliage burns. They begin to change their shape, the edges twist inward. After a while, the leaves begin to turn yellow and fall off.

Thus, instead of increasing the fertility of tomatoes, you can get its decrease, and in some cases this will lead to the death of plants. If boric acid for tomatoes (spraying) was chosen as a top dressing, the norm of the drug should be observed in the first place.

Boron deficiency symptoms

The first sign that tomatoes are sorely lacking in boron is the death of growth points. In these places, noticeable darkening forms on the stems of the bushes. There is an active emergence of new shoots from the roots, but the leaves on them are too brittle and fall off even from accidental contact.

Dead areas appear on the formed fruits. Most often they can be observed on the tops of tomato fruits.

The best way to prevent these symptoms is prevention. In areas that are constantly cultivated and fertilized, such phenomena practically do not occur. Therefore, do not forget about the mandatory application of fertilizers to the soil, in particular on poor soils.

At the stage of preparing seeds for planting, they should be soaked in boric acid. For its manufacture, 0.2 g is used. per liter of water. Seeds should be soaked for 1 day.

Boric acid solution preparation

  • Boric acid for tomatoes (spraying, how to dilute) dissolves well in warm water. To create a complete foliar feeding 10g should be added to a bucket of water. boric acid.
  • For improvement seed material before landing, 0.2 g is taken. powder per liter of water. Seeds should be in a pre-prepared solution during the day.
  • Before direct planting of seedlings in open ground, boric acid, previously dissolved in water, is added to the wells. The drug is prepared at the rate of 2g. boric acid per 10 liters of water.

In terms of harmlessness to humans, boric acid occupies one of the first places. Therefore, contact with the skin will not cause harm if this happens during the preparation of the solution. More dangerous is the use of a large amount of boric acid inside. Boron tends to be retained in the body.

Spraying tomatoes

The use of boric acid as a foliar top dressing is considered the most effective method tomato fertilizer. Boron is absorbed through the leaves several times faster than through the root system.

Thus, by spraying the plants with a solution of boric acid, the effectiveness of the procedure can be seen within a day. We should not forget that tomatoes grown in greenhouse conditions also need top dressing.

Boric acid for tomatoes is sprayed in a greenhouse with a small sprayer. In conditions small space the use of small sprayers is very important. The amount of solution directly depends on the age of the plants. For young plants, about 10 ml is required. Adults may require significant large quantity. The solution must be applied to the entire plant.

When processing plants in the open field, you can use sprayers with large area coatings.

How to measure the required amount of boric acid

Boric acid is sold in packs of 10 grams. This amount is just enough to prepare 10 liters of foliar top dressing. However, boric acid is not always in packages.

If scales are not available, then preparing fertilizer from an unknown amount of boric acid can be a problem.

Using a simple teaspoon, you can measure with high accuracy required amount dry matter. A teaspoon without a slide of boric acid in powder is 5 grams. This number is approximate, as spoons are different.

The frequency of spraying tomatoes with boric acid

Boric acid for tomatoes (spraying, how many times) is used three times during the harvest season.

  • The first spraying is done at the time of bud formation. During this period, buds are just beginning to form, and boric acid noticeably accelerates growth rates.
  • The second spraying is carried out in the phase of maximum flowering of plants. This contributes to pollination and the formation of ovaries.
  • The third spraying takes place at the time of mass fruiting of tomatoes. After spraying, the formed tomatoes begin to grow better, gain weight and ripen faster.

After each spraying, you should carefully monitor the condition of the plants. If they begin to look better, develop more actively, and the ovaries increase in number, then the plants respond well to top dressing.

If the appearance has deteriorated significantly and the leaves on the tomato bushes begin to dry out and fall off, then feeding with boric acid is completed. Perhaps there is an excess of the allowable amount of boron in the plants, and further feeding may worsen the situation.

The use of boric acid for other crops

Boric acid for tomatoes (spraying) and cucumbers is used in the same way. There are 3 groups of plant dependence on boron in the soil:

  • High dependency. This group includes apples, pears, cauliflower and beets.
  • Average dependency. This group includes tomatoes, all types of salads, carrots.
  • low dependency. Potatoes, strawberries, legumes are considered the least dependent plants on boron in the soil.

Despite the fact that strawberries are included in the category least dependent on boron, its high deficiency greatly affects the yield and visual qualities of these plants.

The concentration of the solution for foliar treatment is the same for all groups. When feeding apple and pear trees, the yield increases by more than 30%. The keeping quality of the harvested crop also increases. Weather have less effect on the yield of sprayed trees.

Using a solution of boric acid for potatoes eliminates fungal scab. Use of 6gr. boric acid per 10 liters of water, when initial signs appear, shows the greatest efficiency.

When forming grape buds, use 5g. boric acid and 5g. zinc per 10 liters increases plant yield by more than 20%. The effectiveness of this top dressing on grapes is noticeable even with a single use.

An additional advantage is that boric acid for tomatoes (spraying) can be bought at a pharmacy or garden supply store. In gardening stores, you can find boron in combination with other elements that are necessary for full growth.

Another use of boric acid

Boric acid is used against pests. It has a contact-intestinal effect. This means that boric acid gains its effectiveness as its concentration in the intestinal system of pests increases.

Very often it is used to eliminate cockroaches, which begin to die a week after the use of this substance. Boric acid has clear sterilizing properties. Thus, pests that survived after boric acid lose the ability to reproduce.

Boric acid is effective tool against other insects that add problems to garden plot- ants. The most common and a simple means is a mixture of sugar and boric acid. You just need to place the bait next to the anthill, and the insects themselves will destroy their settlement.

The disinfectant properties of boric acid are also known. It strongly inhibits the reproduction of fungi. When treating tomatoes with a solution of boric acid, the possibility of their damage by diseases such as late blight, gray rot and septoria.