Boric acid powder for tomatoes. Why is it necessary to treat tomatoes with boric acid? Signs of a lack of boron in horticultural and horticultural crops

The colorless crystalline substance boric acid is sold in pharmacies and is used as an insecticidal and antiseptic agent. However, gardeners and gardeners have found use for the powder in the garden and garden, treating plants with a solution of boric acid to set and increase yields. This is explained by the fact that boron as a trace element is needed by cucumbers, tomatoes, peppers, strawberries, root crops, which grow poorly from its lack and can even get sick.

The benefits of boron for the garden are obvious. With its deficiency in plants, the following negative signs appear:

1. Leaves become small, brighten, curl, fall off.
2. Plants have few flowers and practically no ovaries are formed.
3. Lateral kidneys begin to grow vigorously, and the apical inhibit growth.
4. Fruit take an ugly shape (deformed).
5. Plants almost stop growing.
6. On strawberry leaves necrosis of the edges appears, the leaf plate is bent.
7. Beet due to a lack of boron, it is affected by phomosis, as a result of which the middle of the root crop rots.
8. Potato delayed in development and affected by fungal scab.
9. Tomatoes new shoots turn brown, the growing point dies off, necrotic brown spots appear on the fruits.
10. Cucumbers growth slows down, the leaves become small, turn yellow along the edge, dry yellow spots appear on the leaf plate, there are practically no mustaches, few ovaries are formed, the fruits grow bent and crooked.
11. on grapes from a lack of boron, flowers turn brown and fall off, the foliage acquires a mosaic color, the ovaries on the brushes are crushed, the fruits become small and brown, young seedlings die after a year or two after planting in a new place.

Boron is necessary for all plants for normal development. Some cultures need a trace element to a greater extent, while others need it to a lesser extent:

• beets, pome trees (for example, apple trees), cabbage need more boron;
• berry bushes, stone fruit trees, vegetable and green crops need an element to an average degree;
• to a lesser extent, legumes and herbs, potatoes and garden strawberries need boron.

Even if the culture has little need for the element, the lack of boron will still negatively affect its development and fruiting and significantly reduce the yield.

However, when feeding plants with boric acid, you should properly prepare the solution and observe the measure. With an excess of boron, the leaves can get burned, and the fruits are stored worse.

Boric acid for plants: how to breed

For spraying, watering and soaking seeds, the powder is diluted in different concentrations.

Attention! Boric acid in cold water do not dissolve, therefore, before preparing the solution, a liter of water is heated to 70-80 degrees (so that the water is hot), diluted right amount powder and then add required amount water to the desired concentration.

How to dilute boric acid:

1. For pre-sowing seed treatment(germination stimulation): in a liter of water - 0.2 grams of powder. In this solution, the seeds of zucchini and cucumbers, cabbage and pumpkins are soaked overnight, and planting material tomatoes, onions, carrots and beets - for a day.
2. For watering the soil before sowing or planting plants: for 10 liters of water - 2 grams of boron. A bucket of solution is enough to process 10 square meters site.
3. For root feeding of plants: for 10 liters of water - one or two grams of boric acid (do not forget to first dilute the powder in a liter hot water, and when it cools down, add another 9 liters to the solution). Before feeding the plants with boron, pre-pour with plain water, otherwise the boron solution will burn their roots.
4. For foliar feeding: for 10 liters of water - one gram of boric acid. Plants are sprayed in the evening or on a cloudy day, but warm weather so that the foliage does not get burned. For spraying use a fine sprayer.

Boric acid powder in a bag contains 10 g, and in a teaspoon - 5 grams.

How to treat strawberries with boric acid

Processing strawberries with boric acid is carried out in the spring and during flowering:

1. In early spring to stimulate the growth of bushes, strawberries are watered with a solution of boric acid and potassium permanganate (1 gram of drugs per 10 liters of water). This volume of solution is enough for watering 30-40 plants.
2. On the initial stage budding strawberries are sprayed with a solution of boric acid with ash. First, an ash infusion is prepared, which should be infused for a day (a glass of ash per liter of boiling water). A day later, the ash infusion is filtered and a nutrient solution is prepared for foliar feeding: for 10 liters of water - the resulting volume of ash infusion, 2 grams of boric acid and potassium permanganate.

Water strawberries with a solution and with a lack of boron. You can find out that this element is not enough for plants by the following signs:

• the edges of the leaves die off;
• leaves become twisted;
• necrosis appears on the shoots;
• few ovaries;
• berries become smaller and ripen unevenly;
• yield is significantly reduced.

Boric acid for tomatoes and cucumbers

Boric acid treatment of cucumbers, tomatoes, as well as zucchini, eggplant and peppers is carried out three times per season:

• during budding;
• during flowering (not earlier than 10 days after the first feeding);
• during fruiting.

Peppers, zucchini, eggplant and cucumbers are sprayed with a solution of 10 liters of water and 5 grams of powder, and for a tomato, 10 grams of acid are dissolved in the same volume of water. AT hot weather tomatoes are sprayed with a less concentrated solution (2 g per 10 l).

At the very beginning of fruiting, tomatoes can be fed with an infusion of boron, iodine and ash, which protect tomatoes from phytophthora. Recipe:

1. 10 grams of boric acid and 1.5 liters wood ash dilute in 5 liters of hot water.
2. When the solution has cooled, add more water to it to make a volume of 10 liters and add a vial of iodine.
3. You can use the infusion in a day. Before use, a liter of the solution is diluted in 10 liters of water.

For prevention powdery mildew and bacteriosis on cucumbers use a solution consisting of the following components:

• a bucket of water;
• boron and potassium permanganate powder - 2 grams each;
• iodine - 40 drops.

Boric acid for grapes

Spraying grapes with boron during budding will preserve flowers and reduce bud drop. The solution is prepared from a bucket of water (10 l) and zinc sulfate with boric acid, which must be taken in 5 g.

A simple solution of boron powder (per 2 l - 5 g) is used three times per season:

• a week before flowering;
• during the flowering of grapes;
• during fruit set.

Boric acid for cabbage

Top dressing of cabbage with boron is carried out only foliar. Spraying is carried out during the formation of the bud, when the fifth leaf appears on the cabbage, during fruiting and if the plants show signs of a lack of boron:

• vitreous inflorescences;
• hollow head;
• rusty color of inflorescences;
• head deformation;
• the vegetable takes on a bitter taste.

Boric solution for spraying cabbage is prepared from one gram of the drug and 10 liters of water.

Processing potatoes with boric acid

For the prevention of late blight and at the same time feeding potatoes, pre-sowing treatment of tubers with a 0.15% solution of boric acid is carried out. One liter is enough to spray 20 kg of tubers.

Boric acid for beets

To get healthy and tasty beet roots, use boron, which will protect vegetables from phomosis:

1. planting material soaked in 0.1% boric acid solution for 12 hours.
2. When the fifth leaf appears on the beet, it is sprayed with a solution from a bucket of water (10 l) and 5 grams of powder.

Using Boric Acid in the Garden

To improve the fruiting of shrubs and trees, the crown is sprayed twice per season:

• at the beginning of budding;
• 7 days after the first treatment.

To prepare a solution, one or two sachets of boric acid are diluted in 10 liters of water.

Spraying the crowns of fruit-bearing shrubs and trees reduces the number of fallen ovaries and improves fruit retention.

How to get rid of ants with boric acid

Ants are carriers of aphids, so they must be destroyed in the garden and in the garden. Boric acid will help in this, from which you can prepare one of the following recipes:

1. Form balls of honey (1 tsp), sugar (1.5 tbsp), glycerin (2 tbsp), boron powder (1/3 tsp) and one tablespoon of water.
2. Make a puree of three egg yolks and three potatoes boiled in their skins. 10 grams of boric acid and a teaspoon of sugar are added to the puree.

The formed balls are laid out near the anthills and along the "ant paths".

As you can see, the benefits of boric acid for the garden, vegetable garden and getting a good harvest are huge, the product is very inexpensive, and when using it, you will not need to use chemicals.

To grow good harvest a tomato requires a lot of effort. Plants require careful attention, constant fertilizing, transplanting, pruning and pinching. Moreover, it is not always soil composition plot meets the needs of this crop, so tomatoes grow very poorly on some soils.

One of the secrets of experienced gardeners is top dressing using boric acid and iodine. These two essential elements help to fully meet the needs of plants, and also provide the necessary strength for abundant fruiting. Our article will tell you how to use these preparations for growing tomatoes.

The effect of these elements for nightshade crops

Iodine and boron are trace elements, which means that the need for them is negligible. At the same time, these substances are very rarely included in the composition of ready-made mineral complexes, and in their pure form they practically do not occur in nature.

The deficiency of these elements does not appear in the best way on the condition of the plant and its root system, so the lack is noticeable immediately and without a professional look.

But what tomatoes exist for a polycarbonate greenhouse in the suburbs, and which of them are the best, is indicated

What does the deficiency of these elements lead to:

1. Decreased immunity. Young seedlings do not grow well and are constantly attacked by fungus and viral diseases. This is especially noticeable at the seedling stage, when weak and thin shoots do not have enough strength to resist disease.
2. Adult plants begin to bear fruit worse, sometimes the development of the ovaries stops completely. In this case, the plant itself may have a healthy appearance and not give any alarming symptoms.
3. Boron deficiency is most often manifested by developmental delay. The apical buds shrink and curl up, while the lateral pagons can actively grow.
4. Besides, hallmark are the appearance of dead necrotic areas on the leaves. If this condition is not caused by a sun or chemical burn, the plant urgently needs mineral supplements.

But how the planting of tomatoes in a polycarbonate greenhouse takes place, and how to do it correctly, this will help to understand

On the video - feeding tomatoes with boric acid:

How to breed a tomato treatment

Iodine preparations are for the most part distinguished by a serious cost and are most often used to compensate for iodine deficiency in humans.

A more affordable and balanced supplement for garden plants there will be an ordinary disinfectant solution of iodine, which can be bought at any pharmacy for mere pennies. It is with this tool that you can feed tomatoes at different stages of vegetative development.

How to use iodine to feed tomatoes:

• The first feeding is carried out even at the seedling stage, after the first pair of permanent leaves appeared on the tomatoes. For optimal support of the seedling, it is necessary to heat three liters of water, to which add just one drop of iodine. It is not recommended to increase the portion, watering is carried out immediately after preparing the solution in the root area.
• The second time the seedlings are treated before the appearance of the ovaries. It will help better harvest, and will also give the necessary strength to resist possible illnesses and pests. To prepare the solution, the following proportions are used: three drops of iodine solution are taken for three liters of warm water. Top dressing is also carried out in the root area, instead of regular watering.
• For the third time in a season, plants are fed with an iodine solution with a complex solution. To prepare it, it is necessary to boil about three kilograms of wood ash in about 5 liters of water. After cooling, add a full vial of iodine (10 ml) and the same amount of boric acid to the resulting mixture. After infusion, dilute the mixture in warm water at the rate of 1:10 and feed the tomatoes at the roots. It is also worth learning more about

On the video - dilution of boric acid:

Iodine is not only good fertilizer enhancing plant immunity. In addition, its disinfectant properties help to disinfect the soil, destroying fungus, mold and most pathogens of characteristic diseases. Of course, for the full disinfection of the soil, it is necessary to use much more saturated solutions, but this is also not recommended, because a strong concentration can burn root system tomatoes.

How to apply for tomato

Boron chemical compounds can be found in several preparations at once, available for free sale in pharmacies and agricultural stores. All of them are effective and inexpensive, but depending on the form of release and the presence of additional compounds, they can be used in different ways.

What are boron preparations:

1. Boric acid. Most optimal remedy for garden use. Most often diluted in a solution for spraying plants.
2. Boric superphosphate. It is a professional top dressing, sold in stores with an agricultural bias. It is used no more than three times per season as the main fertilizer with a sufficiently strong lack of boron in the soil.
3. Bura. In my own way chemical composition is a salt of boric acid. It is also most often used as a top dressing.
4. Special fertilizer "boron - magnesium". In addition to boric acid, the composition also contains magnesium oxide. The slightly awkward release form makes it difficult to use. It is used in complex plant nutrition.

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On the video how to use boric acid for a tomato:

In addition, boron compounds can be found in the composition complex fertilizers. Despite the relative non-prevalence of such an element, without it it will be difficult to wait good results. That is why many gardeners practice the use of home dressing recipes containing two available drugs: iodine solution and boric acid. But what are the ultra-ripe varieties of tomatoes for open ground, and how to choose the right variety, indicated

In addition to availability and low cost, such preparations pollute the earth less, allow you to effectively destroy fungal spores and pathogens of common diseases, without harming the plants themselves.

Features of the use of boric acid and iodine in your garden are discussed in the information in this article.

Boric acid is a source of boron, an important trace element for the development of tomatoes. Regular feeding with boron increases the yield by 20-30%, protects tomatoes from diseases, cold and drought. The quality of the fruits also changes noticeably, they become more sugary and fragrant.

Boric acid can be easily purchased at pharmacies for little money. It is practically harmless to humans and is easy to use.

Boron is an essential trace element for the life of all plants. It is needed in a small (compared to the main batteries) amount. But its biological role is great.

Boron is an active participant in the development of the meristem (educational tissue). The trace element stimulates cell division in vigorously growing parts of the plant. These are growth points, root tips, young leaves, parts of the reproductive organs and cells of the vascular tissue.

Boron improves the production of carbohydrates, especially sucrose, in plant leaves. Accelerates their distribution to the roots and organs of fruiting. Stimulates the germination of pollen and prevents the fall of the ovaries.

Boron promotes better absorption and use of calcium in the metabolic processes of the plant. The trace element normalizes the production of nitrogenous substances and increases the level of chlorophyll in the leaves.

The lack of boron causes a depressive state of plants. They are often affected by diseases and pests.

Boric starvation does not lead to the death of plants, but significantly reduces the speed and coherence of their development processes. Ultimately, crops produce a low and low-quality crop.

Signs of boron starvation of tomatoes

Boron deficiency is manifested by severe symptoms that signal serious disturbances in the metabolic processes of tomatoes.

The main signs of boron deficiency:

• stop the growth of roots and stem;
• loss of color (chlorosis) and twisting on the apical leaves;
• acquisition of brown leaves by veins;
• fragility of leaves;
• darkening of the growth point;
• death of the growth point (with severe starvation);
• the minimum number of flowers, infertility;
• unnatural shape of the fruit, the formation of brown corked areas.

From the axils of the leaves of tomatoes develop side shoots, the plant bushes strongly. After some time, the same symptoms appear on new shoots as on the main stem.

Boron deficiency often becomes the leading cause of diseases: bacteriosis, gray and brown rot.

Causes of Boron Deficiency

Deficiency of the element is formed after heavy rains in a short period of time, liming the soil at pH values ​​above 6.6, using a large number organics and mineral fertilizers.

It is also characteristic in the soil after cabbage and beets, which are characterized by a large boron removal.

Boron deficiency is natural on sandy, calcareous and alkaline soils, in which the element was not introduced during cultivation.

The benefits of boric acid for tomatoes

Like all plants, tomatoes need boron throughout their development. The best and most affordable source of trace elements is boric acid. In it, boron is in a form that is easily absorbed by plants.

Boric acid is a colorless crystalline powder, highly soluble in water. It is non-toxic to humans and does not damage the skin. But its ingestion should be avoided. The accumulation of boron can lead to acute poisoning.

Feeding tomatoes with boric acid brings significant benefits:

• stimulates the development of roots, growth point and young leaves;
• improves pollen germination, stimulates flowering;
• accelerates the formation of ovaries;
• increases productivity by 20-30%;
• accelerates the ripening of fruits;
• strengthens immunity: plants are more resistant to influence external factors, damage by diseases and pests;
• improves the quality of fruits: sugar content, aroma, keeping quality.

Boric acid has mild fungicidal properties - it protects tomatoes from late blight.

How to use boric acid for tomatoes

In plant tissues, boron does not pass from old leaves to young ones and is not reused. Therefore, top dressing with boron of tomatoes is done throughout the growing season, starting with soaking the seeds.

Rules for preparing solutions: it is important to observe proportions

For the preparation of solutions, it is convenient to use boric acid with pharmacy packaging of 2 g and 10 g. It is easier to calculate the dosage of acid for soaking seeds from 2 g, dividing the amount of powder into 10 parts. For basic top dressing and soil shedding, it is convenient to use a bag with 10 g of powder.

Boric acid is practically insoluble in cold water. First, a measured dose of acid is diluted in a small amount of water at a temperature of +70°C. After supplement to the required volume cold water. Optimum temperature working solution +22… +24°C.

seed processing

The treatment of tomato seeds with boric acid accelerates germination and improves the germination of plantings. Additionally, immunity is stimulated in the initial phase of its development.

Plants from treated seeds are stronger, less susceptible to fungal and viral diseases.

For seed treatment, 0.2 g of boric acid is diluted in 1 liter of water. The seeds are placed in a gauze bag with a weight and placed in a solution for 1 day. Sow immediately after soaking.

tillage

A good result is obtained by treating the soil with a solution of boric acid. It is important on depleted and medium-fertile soils, after liming. For the pre-sowing strait of the earth with boron, a cloudy but warm day is chosen. After prolonged dry weather, the bed is shed with water before making boron.

For tillage, a 0.05% solution of boric acid is prepared. To do this, 5 g of the powder is dissolved in 10 liters of water. The bed is watered from a watering can, consumption per 1 m² - 1 liter.

Soil cultivation is best done after the formation of ridges. Aisles do not need to be watered, it's just a useless consumption of the solution.

foliar top dressing

Top dressing of tomatoes with boron is carried out mainly on the leaf. This is due to the low mobility of boron ions in plant tissues. The best absorption and distribution of the element occurs through the leaves.

Spraying of plants is planned for the evening or on a cloudy day. The optimum air temperature is +18…+20°C. They work as a high-quality sprayer, giving a foggy drizzle, and not large spray.

It is difficult to determine the exact consumption rate for each bush. Spraying of a plant (a certain area) is stopped when its surface is covered with fine dew. Rolling drops should not be allowed to appear.

Feeding scheme:

1. In the budding phase of plants. To increase the number of buds and accelerate flowering.
2. During the flowering of tomatoes. To stimulate the maturation of pollen and the formation of ovaries.
3. At the beginning of the fruiting phase. For quick ripening and fruit filling with carbohydrates.

This is standard scheme for annual use. With obvious boron starvation, top dressing is carried out every 7-10 days, combined with the introduction of an element under the root.

Top dressing with boron is useful when the tomatoes are oversaturated with nitrogen or potassium. In this case, foliar boron treatment reduces or completely eliminates Negative consequences. It is impossible to treat tomatoes overfed with phosphorus in the same way.

Root top dressing

Boron fertilizer under the root is carried out only with a clear deficiency of the element. The procedure is planned for the morning or evening hours, before that the soil is plentifully irrigated with water.

For top dressing, 5 g of boric acid is dissolved in 10 liters of water. The solution is poured in a circle at a distance of 3-5 cm from the stem. Consumption: per plant - 1 liter.

Signs and elimination of overfeeding with boron

Symptoms of excess boron on tomatoes develop from the top down. The leaves acquire a glossy sheen, dome-shaped curved, and their edges are wrapped down. The edges of old leaves acquire a light brown color, the sepals dry out and turn pale.

In this case, potassium top dressing under the root is useful. To prepare a working solution, 10 g of potassium nitrate is diluted in 10 liters of water.

If overfeeding with boron occurred on depleted soil or in especially harvest year, then a week after feeding with potassium, tomatoes are processed nitrogen fertilizers. To do this, 10 g of urea is diluted in 10 liters of water and sprayed over the leaves.

When growing tomatoes for top dressing, many gardeners use only the main macronutrients, and sometimes they manage with one organic matter. This is not entirely true. All trace elements, including boron, are also needed by tomatoes.

These are less noticeable, but important participants in all metabolic processes in the plant. In addition, they play the role of catalysts: the full assimilation of the main minerals - nitrogen, phosphorus and potassium is impossible without them.

A good harvest of tomatoes cannot be obtained if we limit ourselves to planting plants. The culture requires constant watering, pinching and pruning, protection from diseases and pests, and timely top dressing. With such care, tomatoes respond abundant flowering, large quantity ovaries, rich fruiting. Among huge amount recommended for the culture of fertilizers, a special place is occupied by preparations containing boron.

Why do tomatoes need boron

Bor is one of essential elements nutrition of tomatoes, it is necessary for the normalization of nitrogen synthesis and metabolism. The trace element affects the formation of cells, helps them multiply rapidly, so its presence is extremely important for active growth leaves, roots, development of ovaries of a tomato bush.

It is impossible to increase the yield of tomatoes without high-quality and timely dressings.

Boron does not occur in the free state in nature. Most often, this element is present in the soil in the form of soluble salts. When fertilizing plants with fertilizers containing boron, it must be taken into account that it is weakly fixed in the soil and can be washed out by precipitation. On soils where liming has recently been carried out, the availability of this element for plants is difficult.

Boron normalizes synthesis vegetable matter, stimulates metabolic processes and increases the chlorophyll coefficient

Many ready-made fertilizers contain boron in their composition, but boric acid is most often used as a supplier of the element. Processing tomatoes with a solution of this drug can significantly increase productivity, increase taste qualities fruits. Boron actively affects the following parameters:

• abundance of flowering;
• the formation of ovaries and the prevention of their shedding;
• preservation of fruits even with excessive moisture;
• the amount of sugar in fruits;
• increasing the shelf life of tomatoes;
• reducing the risk of infection with late blight.

All these positive changes occur because boron helps plants take the micro- and macroelements they need from the soil, participates in the regulation of pollination and fertilization, carbohydrate and protein metabolism.

It is especially important to have a sufficient amount of boron when growing tomatoes at home, since in a limited landing capacity space bushes are highly sensitive and demanding on the quality of nutrition

Video: boron top dressing - how to properly fertilize plants

Signs of boron starvation of tomatoes

Determine the lack of boron when growing tomatoes will help appearance bush. In plants experiencing boron starvation, the following signs are observed:

• apical shoots begin to die;
• twist from the top to the base, the upper leaves of the bushes are deformed;
• old leaves turn pale and turn yellow;
• the flowering of the bushes is weak, the ovaries are not formed and massively fall off;
• petioles of young leaves become brittle, twist, change their color;
• growing points on the stem darken and die off, while thin and fragile shoots begin to grow rapidly from the root;
• dry spots appear on the fruits.

Photo gallery: signs of boron starvation in tomatoes

The apical part of the bush during boric starvation begins to twist to the bottom
During boron starvation, tomato leaves roll up into a tube.
A certain sign of a lack of boron are brown spots at the tips of the sepals
In the case of a lack of boron, young apical leaves first lose their normal color, their petioles turn black.
During boron starvation, areas of darkened or dried tissue may form on the fruits.

Signs of an excess of boron

An excess of boron also adversely affects tomatoes. This problem will be indicated by the following signs, which appear first on old leaves and in the apical part of the bush:

• the leaves on the bush become glossy, as from an excess of nitrogen;
• small brown spots appear on old leaves, which quickly increase and lead to the death of the leaf plate;
• the middle of the sheet plates bends upward, representing a kind of dome.

With an excess of boron, depressed dry spots develop on tomato leaves, bordered by concentric circles.

How to properly feed tomatoes with boric acid

Boric acid is an optimal and inexpensive means for feeding tomatoes with boron, especially since the introduction of this drug does not require special conditions and fixtures. It is only necessary to take into account that for the complete dissolution of boric acid, cold and even slightly warm water. For cooking boron solution the required amount of the drug is first dissolved in a small amount of rather hot (about +50 degrees) water, and then the solution is brought to the desired volume.

Boric acid is a fine, odorless crystalline powder, its aqueous solution has a slightly acidic reaction.

An alcoholic solution of boric acid is not used for the preparation of fertilizer, as it can cause leaf burns.

Table: scheme for the use of boric acid for processing tomatoes

Foliar top dressing is carried out using a spray gun, the sprayer of which is set to fog mode, spending no more than 100 ml of solution per 1 sq. landing meter.

Optimum temperature environment when spraying - +18 degrees

Errors in the use of boron solution when feeding tomatoes

The most common mistakes when processing tomatoes with boric acid:

• excess concentration of the drug;
• excess of the fertilizer consumption rate;
• uneven distribution of the solution over all parts of the plant. Since the boron is characterized by low mobility, once on the sheet, it is fixed and does not move to other parts;
• inappropriate solution temperature. It should be the same as the air temperature. Otherwise, the solution will quickly evaporate and will not give the expected result;
• adding boric acid to alkaline soil. Under such conditions, boron is not available to plants.

Video: how to use boron top dressing correctly

Boric top dressing, carried out in certain periods of the growing season of tomatoes in compliance with the indicated dosages, have a beneficial effect on the development of the crop, help increase yields and minimize the cost of fertilizers.