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Application of potassium sulfate monophosphate as fertilizer for tomatoes

Application of potassium sulfate monophosphate as fertilizer for tomatoes


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Even fertile black soil becomes poorer over time. And sooner or later, cultivated plants begin to experience a lack of useful microelements. Tomatoes are no exception. Potassium sulfate is a fertilizer that allows you to enrich the soil with potassium to optimize the development and growth of vegetables, a good harvest and tasty fruits. We will talk about its application further.

Potassium value for tomatoes

Tomatoes need a regular intake of potassium as a beneficial trace element. This is especially true of the period of formation of the first leaves on the seedling. Then this fertilizer is necessary to optimize the development of the root system so that the bush takes root well in the new conditions. Soil enrichment is carried out a week before planting seedlings. In the future, the component is necessary for the plant from the appearance of the first ovary to the completion of fruiting.

Required concentration in soil:

  • promotes better development of leaves and shoots of the bush;
  • shortens the rooting period of tomatoes after transplanting them into open ground;
  • leads to an increase in dry components in fruits;
  • affects the taste of the vegetable. It is potassium that adds sweetness to a tomato. Its lack will lead to the fact that the vegetable will be sour;
  • will allow the plant to bear fruit on time;
  • protect tomatoes from various kinds of diseases of bacterial and fungal origin;
  • allows you to increase the plant's protection against low temperature readings and other unfavorable conditions.

All this suggests that it is impossible to get a good harvest of tomatoes without potassium. It is recommended to enrich the soil with it every 15 days. Excessive concentration on the land is very rare. At the same time, gardeners often encounter a lack of this nutrient.

You can diagnose a lack of potassium in tomatoes by the following external signs:

  • if dry edges appear on the leaves. Moreover, over time, this color changes from light to dark. The leaf dries out from the tip, gradually spreading over its entire surface;
  • ovaries are poorly formed on the bushes;
  • uneven ripening of fruits occurs;
  • unripe spots often appear at the stalk itself.

The shortage contributes to the cessation of normal plant growth, low fruiting of tomatoes, including poor crop preservation, not to mention the deterioration of the taste of vegetables.

Oddly enough, an excess of calcium in the soil can cause a lack of potassium. Since these components are antagonistic.

A good gardener should notice the problem in advance by the appearance of his plants. It is necessary to replenish the lack of potassium as soon as possible, using special fertilizers by spraying the entire bush or watering the tomatoes at the root.

Composition and characteristics of potassium sulfate

It is presented in the form of a yellow powder, which consists of small crystals. This is 44 percent potassium with oxygen. Granules are easy to dissolve in water. They also contain sulfur oxide, sodium, calcium and iron oxide. These components increase the harmonious growth of tomatoes and their yield. But the concentration of these substances is so insignificant that it is not worth taking them into account for the nutrition of vegetables.

This nutrient causes the seedlings to accelerate their metabolism at the cellular level. He takes part in photosynthesis, causing the formation of acids of organic origin, and also ensures the normalization of nitrogen metabolism.

In order for the feeding to work with greater efficiency, it is necessary to additionally use nitrogen and phosphorus agents.

Advantages and disadvantages of fertilization

It is advised to use it preferably for acidic soils. Thanks to this component, the acid-base balance of the soil is optimized. It is also necessary to remember about the benefits of the additive for peat soil and sod-podzolic areas, which most often suffer from a lack of useful microelements. Although fertilizer is allowed to be used for all types of soil without exception, the main thing is to take into account the characteristics of the soil.

After the application of potash fertilizer, the growth and rooting of young seedlings in the open field and in the greenhouse will significantly accelerate. In the process of growing a vegetable at every stage of its development, fertilizer is used, but in different dosages and embodiment. After all, the fertilizer can be used as foliar and root dressings. And you won't have to wait long for the result.

But, like any other fertilizer, the mixture has its drawbacks. In this case, it concerns the compatibility of individual fertilizer complexes. For example, it is forbidden to use it with urea and chalk. Mixing of fertilizers with nitrogen content is done before using the mixture itself. The composition should not stand for a long time, waiting for its application. For acidic soils, fertilizer works best with lime.

Another negative side of the use of potassium-containing fertilizers is that they promote the absorption of magnesium, calcium, manganese and other microelements useful for plants.

The last use of top dressing should be made no later than two weeks before harvest.

Instructions for use

The enrichment of the soil with nutrients can be carried out by various methods, both dry and diluted. Moreover, the use of fertilizers can be used as a top dressing during the entire period of growth and development of a cultivated plant. Potassium sulfate, diluted in water to the desired concentration, can be sprayed directly onto the leaves and stems of the plant.

A holistic approach to tomato fertilization is good, but it is better to apply fertilizer directly to the soil. This will not only saturate the plant with a mineral, but also contribute to the optimization of the acid-base balance of the land plot.

The instructions on how to apply are quite simple. First of all, it is recommended to scatter fertilizer evenly throughout the site in the spring during the period of digging the earth. In this case, crystals can be embedded directly into the soil so that they dissolve and saturate it with potassium. The depth of such embedding should correspond to the approximate depth of further planting of seedlings or seeds.

Most gardeners agree that about 20 g of potassium sulfate is needed per square meter of land. If soil enrichment is expected during the digging process.

In the summer period of the year, potassium sulfate is used for feeding in the form of a solution directly under the root.

Other potash fertilizers

Since tomatoes have a negative attitude towards chlorine, it is customary to use potassium-containing fertilizers for their normal growth. There are enough of them, and there is plenty to choose from. This is what we will talk about further. So:

  1. Potassium monophosphate is a combination of potassium and phosphorus. The complex will be the best option for feeding seedlings after transplanting them.
  2. Potassium nitrate contains nitrogen, potassium and phosphorus, which will enhance the growth of vegetables. The best option for feeding until the ovary appears.
  3. Potassium magnesium is a combination of potassium and magnesium sulfate. This fertilizer will also make up for the lack of magnesium. But it is not recommended to use the complex constantly for feeding cultivated plants. Better to look at other options.

You can also use whole complexes that are purchased in specialized stores or created with your own hands. In this case, we are talking about potassium sulfate, humate, ammofosk and nitrophosphate.

If you constantly use a complex diet to improve the growth and development of vegetables, then you can significantly increase yields and improve the taste of both tomatoes and cucumbers. This is especially true of depleted land, which is lacking in micronutrients. The signs of potassium starvation, which we talked about earlier, should be a sure signal that you cannot do without special fertilization. Otherwise, tomatoes will ripen for a long time and turn out sour and tasteless.


Top dressing of tomatoes with potash fertilizers

You can get the desired tomato harvest if you follow all the rules for growing tomatoes. Agronomists advise paying special attention to feeding. It is important to fertilize them so that the plants are saturated with the required substances. But there should not be an excess of nutrients.

  1. Fertilization features
  2. Types of potash fertilizers
  3. Potassium monophosphate
  4. Potassium sulphate
  5. Potassium nitrate
  6. Potassium humate
  7. Kalimagnesia
  8. Potassium chloride
  9. Complex fertilizers
  10. Ash
  11. Kemira
  12. Station wagon
  13. Solution

Potassium value for tomatoes

Potassium plays an important role in the normal formation of fruits. It has a positive effect on the growth and development of the seedling, promotes the formation of a large amount of sap. The lack of a trace element adversely affects the plant's ability to bear fruit. The component deficiency is indicated by:

  • 1) drying of the sheet plate: a dry border of light color is formed along its edges, the sheet gradually darkens and collapses
  • 2) yellowing and dying off of the top
  • 3) insufficient formation of the ovary
  • 4) poor (uneven) ripening of fruits
  • 5) unripe spots that form around the peduncle.

Replenishment of the required concentration of potassium allows tomatoes to:

  • better to take root
  • more active development of leaves and stems
  • accumulate dry matter more intensively
  • ripen faster.

Due to the additional introduction of a microelement, tomatoes become more resistant to the negative effects of pathogens that cause infectious plant infections. Tomatoes acquire sweetness, their taste improves, tomato pulp is replenished with a large amount of vitamins, and the yield of the vegetable increases.


As a fertilizer

Increases the amount of sugar and minerals in plants. Crops that are fed with this agent more easily tolerate various diseases and lack of moisture. Potassium accelerates plant metabolism at the cellular level, helps the formation of organic acids and normalizes nitrogen metabolism.

  1. The mixture has a positive effect on both low-growing crops and trees. Potassium sulfate helps keep bushes alive at the end of the season and boost their immunity.
  2. Fertilizers in liquid form accelerate plant growth and promote the rapid formation of young shoots.
  3. With the help of the tool, the circulation of fluid within the culture is significantly improved.
  4. The development of the root system is accelerated.

An important advantage of this fertilizer is that the nutrient components that enter the plant are evenly distributed over it. With the help of potassium sulfate, the rooting process of seedlings is accelerated.


Terms of application of potash fertilizers

Top dressing with potassium sulfate of tomatoes must be carried out at least four times per season. In this case, the timing of fertilization is as follows:

  • directly after transplanting tomato seedlings into open ground
  • in the period preceding the beginning of flowering of the plant
  • during the formation of the first ovaries on tomatoes
  • during the period of active fruiting of the culture.

Many gardeners, even at the stage of growing tomato seedlings, carry out the first feeding of tomatoes with potassium sulfate in order to ensure better survival of the root system of the plant in a new place after transplanting it into open ground and to reduce the stress of such a procedure for the plant.

In addition, some agronomists advise soaking tomato seeds before sowing in a solution of potassium humate for 72 hours as a top dressing.


For indoor and garden flowers

To achieve early flowering of garden plants, they are watered for the first time with a 0.05% solution of potassium monophosphate (5 g of fertilizer per 10 N2O), when they have 3-4 leaves at the rate of 3-4 liters of liquid per 1 sq. m. During the active growing season watered with 0.07-0.1% solution of the drug. After the rain, the plants are sprayed with a 0.02% solution, except for ampel petunias, they are treated with a 0.01% solution.

Indoor plants are watered twice with an interval of 2 weeks with a 0.1% solution of potassium monophosphate, as soon as buds appear, fertilization is stopped.

Store the drug out of the reach of children and pets. You need to work with fertilizer in rubber gloves, when spraying - use a respirator. If the drug gets on the skin or eyes, they must be rinsed with plenty of water.


Approximate fertilizer prices

Potassium monophosphate is available in packages of 15 g and 500 g, the price, respectively, from 15-35 to 190-240 rubles. The leading manufacturer in the country is the Buisk Chemical Plant, which produces, incl. industrial packages of 20 kg for farmers and agricultural enterprises at a price of 130 rubles. / kg.

The high content of basic elements, good solubility, and a wide range of applications make potassium phosphate a necessary and useful fertilizer in every garden plot.


Watch the video: THIS LITTLE TRICK WILL MAKE YOUR TOMATO PLANTS VERY HAPPY!


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