home » Plants » The benefits of boric acid in the garden. Boric acid for plants, application or how to make the product effective!? Possible harm to a houseplant and precautions

The benefits of boric acid in the garden. Boric acid for plants, application or how to make the product effective!? Possible harm to a houseplant and precautions

Boric acid is one of the weak acids. It has found its application not only in medicine, but also as a poisonous substance.

In the house, for example, dry acid is mixed with egg yolk and acts as a poison against Prussians or ants. As well as other insects that can carry harmful microscopic organisms.

Many people spend years housekeeping, planting a vegetable garden and caring for their garden. An experienced gardener knows what boric acid is for. But many beginners do not have such knowledge. So what is boric acid, and how to use it?

Boric acid is available in solutions and powders. It is sold both in a pharmacy and in stores of garden supplies, seeds, fertilizers and pest control products.

If boric acid is applied to the soil:

the amount of the crop will increase;
there is an acceleration of shoot growth;
ripe fruits become sweeter.

Boric acid improves the process of nitrogen assimilation. Due to this, the yield increases by 25%. Crops become more resistant during frost or drought.

If there is not enough boron in plants:

it does not grow (does not develop);
the fruits become lethargic, small and tasteless;
the root system lacks the necessary trace elements, and the root can easily begin to rot;
diseases develop different kind(dry rot, bacteriosis).

Boron is mainly used in forest soil. But it also does not hurt in the black earth. The lack of boron is especially visible in the dry season. Boron in plants does not pass from old leaves to young ones, so from time to time you need to “feed” the cultures.

The need for boron in each plant is different:

They love boron - apple, pear. From vegetables - beets, cauliflower, swede.
The average need for boron is cherry, sweet cherry, apricot, peach. From vegetables - tomato, carrot. Greens - salad.
Peas, beans, strawberries, potatoes need very little boron. But, if there is not enough boron for strawberries and potatoes, this is very evident from the plants themselves. They are very lethargic and small.

The use of boric acid in the garden

Boric acid is used as follows:

Boric acid provides 100% seed germination and good shoot growth. For this you need:
- gauze bag - place the seeds there;
- prepare a solution - 0.2 gr. boric acid and 1 l. hot water;
- solution No. 2 - 5 gr. baking soda, 1 gr. potassium permanganate, 0.2 gr. boric acid per 1 liter. hot water;
- soak the seeds in a bag for 48 hours.
Under the root as top dressing. A solution of 0.1-0.2 g is made. acids per 1 liter. water. Before feeding, water the plant abundantly with plain water so as not to burn root system. Such top dressing is used in emergency cases of boron shortage. Such top dressing helps flower plants that grow in the soil of their peat and sand very well.

Fertilizer for fruit and vegetable plants

Top dressing of fruit and vegetable plants is carried out in this way:

For strawberries. When buds appeared on the strawberries, the bushes need to be sprayed with a solution: 5 gr. acid per 10 liters. water. You can add manganese to the solution. During the berries, you can “feed” the bushes with a solution: 2 units of boric acid, 2 units of manganese and 1 unit of ash per 1 tbsp. water (for example, 2 g acid, 2 g manganese, 1 g ash).
For tomatoes. In addition to soaking seeds, tomato bushes need to be processed during growth and ripening. You can fertilize the soil with boron-containing solutions, which are sold in stores. In order for the plant to react loyally to fertilizer, it is required to water the soil with ordinary water before the procedure. Before flowering, the tomato is sprayed with a solution: 10 gr. acid per 10 liters. water. Stir well until completely dissolved and spray in the evening or early in the morning, so that there is no direct sunlight.
For cucumbers. Boron helps the plant in the process of ovary and flowering. During flowering, the plant should be sprayed with a solution of 5 gr. boric acid and 10 l. water. A little sugar (honey) can be added to the solution for good pollination. The initial sprouts of the crop are sprayed with the same solution. Just add manganese instead of sugar (to prevent diseases).
For beets. Lack of boron in beets leads to unusable roots, and the leaves become stained. In order to avoid a disease of the fungus, it is necessary to treat the seeds first, and then “feed” with the usual boron-containing solution.

Ants fight

Boric acid has not only beneficial properties for plants, but also has an effect on living organisms. Dry mixtures with boric acid are poisonous. When eating mixtures, the insect accumulates boron in the body and dies after 12 days.

The main thing is not to put more boric acid in the preparation of mixtures, because the ant will die quickly and will not reach the anthill.

Signs of boron deficiency in plants

Boron is mostly deficient in soils with high humidity, as well as acidic soils. In plants, this deficiency is revealed in different ways. Potatoes and corn practically do not experience a lack of boron, but if there is a shortage, then the leaves of the potato turn yellow, the tubers are small, and brown cracks appear.

Some cultivated plants begin to get sick due to a lack of boron:

Beets, for example, develop heart rot, a wormhole.
Tomatoes begin to turn black at the base, young leaves and branches grow from below, become brittle, the tomato becomes like a bush. Red spots appear on the tomato, and the fruit becomes dry.
Strawberry and raspberry leaves change their shape and color.
In raspberries, the leaves curl up, and in strawberries, they become wrinkled, and a brown, dry color appears around the edges.

Common signs of boron deficiency:

growing points die off;
dry kidneys;
plant stems become crooked.
the leaf of the plant acquires a pale green color, curly;
almost no flowering.

Boron overdose

Boric acid belongs to the lowest class of harmful substances. In case of contact with the skin, nothing will happen.

But if there is a lot of boron in the ground, this can significantly damage plants:

Burn of the lower leaves. They turn yellow, dry and fall off.
The sheet changes its shape. It becomes like a dome, turns inward, turns yellow. Adult leaves suffer the most from this.
The root system also suffers. It may burn the horse. Then the small roots die off, and the large ones stop absorbing beneficial features and moisture from the ground, which leads to the wilting of the plant.
The trees show a large amount of boron in the yellowing of the leaf.

What are the benefits and harms of boric acid? Its use in the garden and in the garden is very wide. Boric acid can be used as a mineral fertilizer, a stimulant for seed germination, for lush flowering of ornamental plants and for increasing the yield of strawberries, potatoes, beets and other vegetables. Boric acid can be used to protect plants from diseases and sprinkled over the area as an ant repellent.

Boric acid - what is it?

Boron is one of the most important trace elements in plant life. It normalizes the synthesis of nitrogenous substances, improves metabolic processes and increases the content of chlorophyll in the leaves. Boric acid (H₃BO₃) is the simplest and most readily available boron compound. Boric acid is widely used in various complex fertilizers. It is a colorless crystalline substance in the form of flakes, odorless, easily soluble in water, acidic properties are very weak. If the amount of available boron in the soil corresponds to the norm, the yield and keeping quality of fruits increase, and the overall resistance of plants to adverse conditions increases.

Boric acid: beneficial properties for plants

The use of boric acid contributes to an increase in the number of ovaries on fruit and berry crops, stimulates the formation of new growth points for stems and roots, the sugar content and the taste of fruits.

With a lack of boron, the roots are oppressed and sometimes rot, the conducting system of plants develops poorly, the supply of nutrients is hindered, the plant lags behind in development. The lack of boron stimulates the development of diseases - hollowness, bacteriosis. With a boron deficiency, the growth point may die off, plant pollen is sometimes unable to germinate. The lack of boron is especially pronounced in dry years. And an amateur gardener, often complaining about a meager harvest, does not understand that the reason is a lack of boron. Apple trees require especially a lot of boron.

Boron in the plant is a "fixed" element - it does not pass from old, dying leaves to young ones and is required during the entire growing season of the plant. In order to correctly use boric acid, it is necessary to take into account the needs of horticultural crops in boron. On this basis, they are divided into 3 groups:

High: apple, pear, cauliflower and Brussels sprouts, beets, swede.

Medium: tomato, carrot, lettuce, stone fruit.

Small: herbs, beans, peas, potatoes and strawberries. Although potatoes and strawberries belong to the third group, the least dependent on the amount of boron, the lack of this element seriously affects these crops.

Boric acid: harmful properties overdose

Boric acid belongs to the lowest, 4th hazard class of harmful substances. It does not harm a person if it comes into contact with the skin, but it can accumulate in the body because boron is slowly excreted by the kidneys.

An excess of boron in the soil is dangerous: it provokes a burn of the lower leaves, drying out of the edges of the leaf - the leaves turn yellow, die off and fall off. Symptoms of excess boron: dome-shaped leaves, turning inside their edges, general yellowing of the leaf. The old leaves are the first to suffer. The high content of boron in fodder plants leads to severe chronic diseases in animals.

Boric acid from ants and other insects

Boric acid as a garden insecticide is used more often as a contact preparation against cockroaches and ants, but also has an intestinal effect. Dry baits with boric acid act as contact-intestinal poisons, and wet ones, mainly as intestinal ones. The combined action manifests itself gradually as it accumulates in the body of the insect. For example, when using boric acid, cockroaches die 8-12 days after the start of use.

Boric acid against ants is effective due to the fact that it affects their work nervous system. After eating, it causes serious disturbances, which after a few hours lead to paralysis and death of the insect. Even if the brothers eat the remains of an ant that has fallen from boric acid, the same fate awaits them: a very tiny amount of poison is enough to kill one ant. The simplest application is to sprinkle boric acid powder in places where ants are most often found or at the entrances to an anthill.

The variant using soft and liquid baits gives the best results. When using such means, the ants eat the bait themselves and take it to the anthill, then the relatives will feed on the poison. Alas, it will not work quickly to remove ants with boric acid. The process usually takes at least 2-4 weeks. But this method is effective even when the anthill is outside the site. Remember that the bait must be inaccessible to pets and beneficial insects.

Boric acid: ant bait recipes

* Pour 5 g of boric acid into half a glass of hot water (100 ml), dissolve, add 10 g of honey (a teaspoon) or jam and 40 g (2 tablespoons) of sugar to the solution. Stir the mixture and pour into a flat dish, which is best placed near the ant trails. Cover from rain on top with a piece of plastic.

*2 egg yolks rub with ½ tsp. boric acid, make small (pea-sized or smaller) balls from the resulting mass and spread out in key places.

*1 tbsp. mix a spoonful of water with 2 tbsp. l. glycerin, add 1 tsp. honey, 1/3 tsp boric acid and 1.5 tbsp. Sahara. Mix everything thoroughly, roll bait balls from the mixture. This recipe is good because the bait stays moist and soft for a long time.

* 3 medium potatoes boiled in their skins, 3 boiled yolks, 10 g of boric acid, 1 tsp. Sahara. Grind peeled tubers and yolks, add boric acid and sugar to the mixture. Once again, mix thoroughly, roll balls from the resulting dough.

It is important to remember that increasing the amount of boric acid in the bait does not increase the effectiveness of its use - the ants will die before reaching the anthill, and the colony will simply grow other worker ants to replace it.

Boric acid: ways to use it in the garden and in the garden

Soil preparation for sowing and planting. Boric acid solution: 0.2 g of boric acid per 1 liter of water. Before sowing or planting seedlings, pour the planting ridges with a solution, consumption of 10 liters per 10 m2, loosen and only then sow the seeds. This method is used as a prophylaxis for suspected boron deficiency in soils.

Top dressing. Boric acid solution: 0.1 g of boric acid per 1 liter of water. The first spraying is carried out in the budding phase, the second - in the flowering phase, the third - during the fruiting period of the plants. When combined with other trace elements, the concentration of boric acid is reduced to 0.05-0.06% (5-6 g of the drug is diluted in 10 liters of water).

Top dressing at the root. Boric acid solution: 0.1-0.2 g of boric acid per 1 liter of water. It is used only in cases of severe starvation or a well-known lack of boron in the soil. Plants are pre-watered with plain water to avoid chemical burns of the roots. Usually used on seedlings of flowering plants growing on soddy-podzolic soils or in a mixture of peat and sand.

Boric acid dissolves easily only in hot water! Always first dilute the sample (bag) in 1 liter of hot water, then bring to the desired volume with water at room temperature. Foliar top dressing (spraying) is carried out in cloudy weather, and preferably in the evening, to avoid sunburn. On hot, dry days, water the plants thoroughly beforehand.

Boric acid for strawberries

Signs of a lack of boron in garden strawberries (strawberries): curvature of the leaves and necrosis of the edges. Top dressing with boric acid significantly increases the yield and improves the taste of berries. In early spring, plantings are shed with a solution of boric acid with the addition of potassium permanganate (1 g of potassium permanganate, 1 g of boric acid per 10 liters of water), consumption - about 10 liters per 30-40 bushes. It is useful to carry out foliar top dressing with a solution of boric acid (5 g per 10 liters of water).

Before flowering, when the plants put forward buds, carry out foliar top dressing with a solution (2 g of boric acid, 2 g of manganese, 1 cup of sifted ash per 10 liters of water). Make an extract from the ash in advance: pour a glass of ash with a liter of boiling water and insist, stirring occasionally, for a day, after which it is filtered through gauze - and the infusion is ready.

Boric acid for apple and pear

Signs of a lack of boron in apple and pear trees: leaves thicken, warp, corking and darkening of veins occur; in acute starvation, the leaves fall off. There is a rosette of leaves - small leaves at the ends of the shoots are collected in the form of a rosette. In advanced cases, the tops of the trees die off.

In pear, rosette of leaves is characterized by rapid drying of flowers and deformation of fruits, on the surface of which pits and areas with affected tissue appear.

For apple trees, a lack of boron leads to a disease called "apple internal corking". Light spots with a diameter of about 1 cm appear in the pulp, later they turn brown and become like a cork or sponge. Dry spotting and crusty spots affect the surface of the fruit, which swell and deform.

Foliar top dressing (10-20 g of boric acid per 10 liters of water) dramatically increases fruit formation. Spend it in the evening, before sunset. Spray evenly over the entire available crown. The first time - at the beginning of the dissolution of the buds, the second - after 5-7 days. Such processing sharply reduces the number of fallen ovaries, which gives an increase in yield by 25-30%. The resistance of trees to adverse conditions and the keeping quality of fruits increase.

Boric acid for grapes

Signs of a lack of boron in grapes: the appearance of chlorotic spots between the veins of the leaf blades, which gradually grow, the absence of normal ovaries on the hands (pea). A new seedling dies within a year or 1-2 years after planting in a permanent place.

Even a single treatment during the budding period, due to the preservation of flowers and less shedding of ovaries, increases the yield by more than 20%. Many wonder why grapes have small berries. This phenomenon is called pea. The appearance of high-quality, fertile flowers helps to avoid the problem of grape peas.

Taking into account the characteristics of grapes, add zinc salts to boric acid (10 l of water, 5 g of boric acid, 5 g of zinc sulfate).

Boric acid for tomatoes

Signs of boron deficiency in tomatoes: blackening and death of the stem growth point, rapid growth of new shoots from the root, while the petioles of young leaves become very brittle. On fruits, usually in the region of the apex, brown spots of dead tissue are formed.

As a preventive measure, soaking the seeds in a solution of boric acid (0.2 g of the drug per 1 liter of water) for a day, or in a solution of microfertilizers containing boron, helps well.

You can use a foliar application of the same concentration in the green fruit phase to accelerate ripening and the accumulation of sugars in the fruit.

Boric acid for beets

Signs of a lack of boron in beets: the heart of the root rots. This is caused by a fungal disease - phomosis. Concentric light brown spots with black dots in the center form on the leaves, then the disease passes to the root crop, its core rots. The tissues on the cut at the initial stage have a dark brown, almost black color, later they dry out, become withered, rotten.

Before planting, soak the seeds for 10-12 hours in a 0.1% solution of boric acid.

Apply boron to the soil to prevent phomosis. With properly prepared soil, to obtain healthy and tasty beet root crops, it is enough to carry out one foliar top dressing at the 4-5 leaf stage (5 g of boric acid per 10 l of water).

Boric acid for ornamental plants

Boron helps the rapid absorption of calcium and the abundant formation of buds.

For foliar top dressing, a 0.1% solution of boric acid (10 g per 10 l) is used. When foliar top dressing with boron, together with other microfertilizers, the concentration of boric acid is reduced by 2 times (0.5 g per 1 liter). The solution is sprayed on plants in the phase of budding and flowering.

Roses. Very good results are obtained by spring spraying with a solution of boric acid in the proportion of 10 g per 10 l. To prevent fungal diseases, rose cuttings are immersed for 2-3 minutes. in a solution of boric acid (20 g per 1 liter of water).

Gladiolus. A solution of boric acid (2 g per 10 l of water) is used to feed gladioli in the 3-4 leaf phase and during the flowering period to obtain larger corms.

Dahlias. Spraying with boric acid mixed with potassium permanganate (5 g + 2 g per 10 l of water) favorably affects the development of flowering plants. Top dressing is done 2-3 times before mass flowering in the evening with an interval of 15-20 days.

howbuy boric acid: modern fertilizers with boron

Previously, boric acid could only be purchased at pharmacies. But now there are easy-to-use fertilizers containing boron and packaged boric acid in garden centers.

For foliar top dressing and when preparing the soil, it is convenient to use the drug Bor-Mag . Packing 15-20 g (approximately boxes) goes to 10 liters of water (per 2-3 m2).

Boric acid (B-17.5%) with brand Green Belt in convenient packaging of 10 g from Technoexport is well known to many. The preparation contains boron, necessary for plants during the entire growing season.

Water Soluble Fertilizers Pokon with boron can be found everywhere. A green bottle with a yellow cap is a longtime partner of many plant lovers: ficuses, cacti and succulents, orchids, roses, palm trees, citrus, flowering and ornamental plants. They are quickly absorbed by plants through the leaves and root system and act immediately.

To get friendly shoots and healthy, strong seedlings, use complex fertilizer "Weaving for indoor flowers and seedlings" containing boron. It is enough to dissolve one small bag in a two-liter bottle of water - and the resulting solution is ready for use.

For foliar feeding of apple trees, instead of boric acid, its sodium salt - borax - can be used in the same proportion. But for other cultures, the sodium that is part of borax is undesirable. They are more suitable complex fertilizers with trace elements, such as Fertika Lux . Fertilizer is useful in February-April when fertilizing seedlings, in May-July for fertilizing plants in open and closed ground, in January-December for fertilizing flowering indoor and balcony plants.

For application to the soil, boric acid can be replaced with boron-phosphorus or complex fertilizer (application rate - according to the manufacturer's recommendations). Check out our wide range of root and foliar fertilizers "Intermag - Garden" various crops: cabbage, tuber, bulbous, flower, for potatoes, tomatoes, cucumbers, strawberries and raspberries, and even for orchid plants.

Learn more plant growing tips . Also, please pay attention to the information block to the left of the text. The links in it lead to related articles.

A substance such as boron is necessary for plants in order to supply the root system with oxygen as much as possible. Its absence significantly reduces the level of calcium intake to the plant organs.

In order to always have a blooming, beautiful garden, and a generous harvest in the garden, in the arsenal of any gardener and gardener there is one necessary remedy containing boron.

The use of boric acid in the garden and garden

Thanks to top dressing, which includes boric acid, plants become more resistant not only to diseases, but also to adverse weather conditions.

Experts note that thanks to boric acid, the yield increases by an average of 20%, or even 25%.

Especially, such high rates in cucumbers, tomatoes, cabbage.
Seeds are treated with boric acid before planting - they are soaked for 12-24 hours (0.2 g of boric acid is diluted in a liter of water).

Boric acid is applied directly to the soil before planting seedlings or seeds (2 g per 10 liters of water).

Leaves are sprayed with boric acid (5 g per 10 liters).
In addition to pure boric acid, ready-made fertilizers such as boron superphosphate are also used: granular or double.
Immediately before sowing, it is advisable to soak the seeds for a while in a solution with boric acid.

This way you can speed up the germination process of your seeds. Usually the seeds of vegetables such as onions, tomatoes, carrots or beets need to be soaked for a day. But, for example, zucchini, cucumbers, cabbage - as little as possible, twelve hours will be enough for them.

For the main application of microfertilizers to the soil, before planting seedlings or germinated seeds of flowers, fruit or berry crops, dilute two grams of boric acid in ten liters of water and water the earth abundantly with the following calculation: diluted composition per ten square meters.

A very good effect was the use of boric acid for flowers.

It needs to be added to the soil with a lot of peat, because it is too poor in boron content. Flowers such as violets need this.

Boron helps the rapid absorption of calcium and the abundant formation of buds. For foliar top dressing, a 0.1% solution of boric acid (10 g per 10 l) is used. When foliar top dressing with boron, together with other microfertilizers, the concentration of boric acid is reduced by 2 times (0.5 g per 1 liter). The solution is sprayed on plants in the phase of budding and flowering.

Roses. Very good results are obtained by spring spraying with a solution of boric acid in a proportion of 10 g per 10 liters. To prevent fungal diseases, rose cuttings are immersed for 2-3 minutes. in a solution of boric acid (20 g per 10 liters of water).

Gladiolus. A solution of boric acid (2 g per 10 l of water) is used to feed gladioli in the 3-4 leaf phase and during the flowering period to obtain larger corms.

Dahlias. Spraying with boric acid mixed with potassium permanganate (5 g +2 g per 10 l of water) favorably affects the development and flowering of plants. Top dressing is done 2-3 times before mass flowering in the evening with an interval of 15-20 days.

It was also noticed that boric acid had a very good effect on roses, and they increased their resistance to fungal diseases. Boric acid in the garden and in the garden is practically one of the the best means for the present day.

Top dressing at the root

Boric acid solution: 0.1-0.2 g of boric acid per 1 liter of water. It is used only in cases of severe starvation or a well-known lack of boron in the soil. Plants are pre-watered with plain water to avoid chemical burns of the roots. Usually used on seedlings of flowering plants growing on soddy-podzolic soils or in a mixture of peat and sand.

Good to know

Boric acid dissolves easily only in hot water! always first dilute the test portion (bag) in 1 liter of hot water, then bring to the desired volume with water at room temperature.

Strawberries: signs of boron deficiency:
curvature of the leaves and necrosis of the edges. Top dressing with boric acid significantly increases the yield and improves the taste of berries. In early spring, plantings are shed with a solution of boric acid with the addition of potassium permanganate (1 g of potassium permanganate, 1 g of boric acid per 10 liters of water), consumption - about 10 liters per 30-40 bushes. It is useful to carry out foliar top dressing with a solution of boric acid (5 g per 10 liters of water).

Before flowering, when the plants put forward buds, carry out foliar top dressing with a solution (2 g of boric acid, 2 g of manganese, 1 cup of sifted ash per 10 liters of water). Make an extract from the ash in advance: pour a glass of ash with a liter of boiling water and insist, stirring occasionally, for a day, then strain through cheesecloth and the infusion is ready.

Tomatoes: Signs of a Boron Deficiency

Blackening and death of the stem growth point, rapid growth of new shoots from the root, while the petioles of young leaves become very brittle. On fruits, usually in the region of the apex, brown spots of dead tissue are formed. As a preventive measure, soaking the seeds in a solution of boric acid (0.2 g of the drug per 1 liter of water) for a day or in a solution of microfertilizers containing boron helps well.

Before planting seedlings, apply boric acid or boron-containing fertilizers to the soil (optional on cultivated soils). Do not forget about foliar top dressing before flowering (10 g of boric acid per 10 liters of water). You can use a foliar application of the same concentration in the green fruit phase to accelerate ripening and the accumulation of sugars in the fruit.

Grape

Signs of a lack of boron: the appearance of chlorotic spots between the veins of the leaf blades, which gradually grow, the absence of normal ovaries on the hands (hummocking). A new seedling dies within a year or 1-2 years after planting in a permanent place. Even a single treatment during the budding period, due to the preservation of flowers and less shedding of ovaries, increases the yield by more than 20%. Taking into account the characteristics of grapes, add zinc salts to boric acid (10 l of water, 5 g of boric acid, 5 g of zinc sulfate).

If the fruits of zucchini or zucchini rot, if the tomatoes in the greenhouse are stressed by the heat, if the fruits of pepper and eggplant do not set, if there are few ovaries on cucumbers, make a solution of boric acid and spray the plants.

Boron is an essential micronutrient for plants. Boron is especially necessary during the flowering period for fruit set. , with a lack of this microelement, barren flowers progress. With timely feeding of vegetable and horticultural crops with boron, their yield can be increased, as well as the taste and useful qualities of fruits.

Top dressing with boron increases the yield of tomatoes, cucumbers, eggplant, cabbage, beets . Also feed with boron the necessary horticultural crops - apple, pear, strawberry, grapes.

Boric acid is an affordable and cheap drug, sold in garden shops and pharmacies, packaged in sachets of 10 gr. Since boron is a trace element for plants and is needed in small quantities, only a few grams of boric acid will be required to feed plants. An excess of boron can lead to the opposite effect, so you should not exceed the dosage when preparing solutions for plant nutrition.

When plants need top dressing with boric acid:

Plants on poor and sandy soils experience a lack of boron, and boron top dressing is recommended after liming the earth in order to reduce the acid reaction.

Plants need boron at all stages of development, but its shortage is especially evident during flowering and fruit set, so it is recommended to fertilize with boron at this time. Boron stimulates flowering, promotes the formation of ovaries and seeds, increases the resistance of plants to adverse conditions and diseases, as well as the accumulation of sugars and vitamins in fruits.

There are plants demanding on boron - these are all types of cabbage, tomatoes, cucumbers, beets, grapes, apple trees and pears . These crops are recommended to be fed annually with boron.

Some crops are moderately susceptible to boron deficiency - these are strawberries, carrots, plums, cherries, potatoes . But legumes, raspberries, berry bushes and greens do not need to be fertilized with boric acid.

How to prepare a solution with boric acid for plant nutrition:

A quick effective result is given by foliar feeding of plants with boric acid during the period of budding, flowering or the formation of ovaries. In this case, it is not necessary to specially spray flowers or inflorescences with diluted fertilizer. Foliar top dressing is carried out on the leaves and inevitably some droplets will fall on the flowers and buds.

The second rule of foliar feeding of plants with boric acid is not to exceed the dosage when preparing the solution. A concentrated solution of boric acid can leave burns on the leaves, cause the flowers to dry out.

It is recommended to dilute boric acid for foliar feeding 5-10 gr. per 10 liters of water, but for some plants its concentration is half as much. In one teaspoon there will be approximately 5 grams. boric acid, respectively, half a teaspoon - 2.5 gr. and a quarter is 1 gr.

To dissolve boric acid, you need to stir the powder in a glass of warm or hot water, and then dilute cold water up to 10 liters. Boric acid does not dissolve well in cold water.

For tomatoes, foliar top dressing with boric acid is done no more than three times. For spraying prepare a solution of 2 gr. boric acid per 10 liters of water. Spraying is carried out for the first time in the flowering phase of the first and second flower brush, after a while along the tier of the third and fourth brush and the fifth and sixth.

For cucumbers prepare a solution of 1 gr. boric acid per 10 liters of water and spraying is carried out three times : the first foliar top dressing is done at the beginning of the growth of the main shoot, the second - at the beginning of flowering, the third - during mass flowering.

White cabbage does not tie heads with a lack of boron . For cabbage, a solution of boric acid is made at the rate of 5 g. for 10 liters of water. To get the maximum yield of cabbage, three foliar top dressings with boron are carried out, the first time after planting seedlings, the second time when 7-8 leaves are formed, and the third time at the beginning of heading. Other types of cabbage - cauliflower, broccoli, Brussels sprouts also need to be fed with boron.

During the flowering period, foliar top dressing with boron is important for apple and pear trees to reduce the fall of flowers and ovaries. . Quickly fill the lack of this important trace element by spraying the tree crown with a solution of boric acid 5 gr. for 10 liters of water. For one adult tree, about 5 liters of solution will be required. To prevent falling a large number flowers and ovaries in apple and pear trees, they need to be sprayed before flowering, and then again a week later. A month after flowering, during the pouring of fruits, a third foliar top dressing with boric acid is done to improve the taste of apples and pears.

Garden strawberries do not require a lot of boron, but with a shortage of this element, many barren flowers form. . To increase the yield of strawberries during flowering, the plants are sprayed with a solution of 1 g. boric acid per 10 liters of water.

For grapes, spraying with boric acid allows you to get dense clusters with a maximum number of berries. . It often happens that grapes produce large dense inflorescences, but after flowering, few berries are tied on them and the clusters come out loose and lightweight. To get large clusters of berries, spray the grapes before or at the beginning of flowering with boric acid 5 gr. for 10 liters of water.

Watering or spraying with boric acid in the middle of summer like beets and carrots. After such top dressing, root crops will be tasty and well stored.