Which plants do not tolerate potassium sulfate

What plants do not tolerate potassium sulfate Potassium sulfate has been proven to be necessary for almost all crops: vegetables, fruits, herbs, berries, flowers. Sulfur (sulfate), which is an active component of top dressing, can be called a doctor for the plant and, together with potassium fertilizer, ensures the formation of ovaries and flower buds. However, as you know, any medication has its own side effects if you break the routine and dosage. Unsystematic use can have the opposite effect – How to reduce the immunity of plants: What plants leaves, buds, pale or colorless; the leaves turn yellow and fall off; young leaves become thin, chlorosis appears; buds at risk of necrosis; internodes are shortened; lower buds and leaves curled; roots begin to be damaged (roots dry out); high concentrations of calcium sulfate adversely affect the qualitative composition of the fruit – a significant amount of sugar and starch is lost.

Source: https://dagslo4ars.ru/sulfat-kaliya-vnutr/

Dosage of the drug

Dosage of the drug

A simple method is used to prepare the mother’s fluid by drip using an injector (jet pump): pour 250 g of potassium sulfate into a 1.5-2 liter plastic container; Pour water into the bottle with fertilizer (1 liter per 200 liters – 250 g); cover the bottle with a lid and shake well; the concentration of the solution is 1: 4 (1 part fertilizer to 4 parts water). To prepare for the autumn decoration of garden trees and shrubs need the following: the ratio should be observed – 35–40 g of potassium sulfate per 1 m3; consumption – for 10 liters of water – 2 tbsp. l. with slide; it is better to use warm water – at least 30C; The fertilizer dissolves quickly, in 4–5 minutes. For horticultural crops should strictly adhere to the dosage and feeding regime: the dose of cooking tomatoes – 20 g per 1 m3 is used during digging; secondary use in summer is carried out with irrigation at the rate of 30 g per 10 liters of water; cucumbers, peppers, eggplant – in the process of digging will be enough to irrigate 15 g per 1 m3, prepare a solution of 25 g per 10 liters; ratios for cabbage and turnips are observed – with the application in the spring of 25 g per 1 m3; during the summer processing – 30–40 g per bucket of water; potatoes – 30–35 g of potassium sulfate per 1 m3 is used in site excavation; The best dressing in the summer after watering – a solution of 40 g per 10 liters of water; The strawberry, strawberry and other berry bushes consume 15–20 g per 1 m3.
Source: https://dagslo4ars.ru/sulfat-kaliya-vnutr/

Potassium-demanding crops

Potassium requirement crops are necessary for all plants, the need for this element is different. More than others, they need potassium: from vegetables – cabbage (especially cauliflower), cucumbers, sprouts, carrots, potatoes, beans, eggplant, peppers, tomatoes, squash and other melons; from fruit and berry crops – apples, pears, plums, cherries, raspberries, blackberries, grapes, citrus; from flowers – head lilies, hydrangeas, anthuriums, streptocarp, brovallia, gerbera, spatifilum; from cereals – barley, buckwheat, flax. But the need for potassium for currants, onions, radishes, lettuce, gooseberries and strawberries is one and a half times less. The use of potassium fertilizers for this type of crop has its own characteristics.

Thus, many vegetable crops are harmful to chlorine, so it is better to supplement the potassium requirement with fertilizers containing potassium sulfate and sodium, which is especially true for root crops tends to transfer sodium carbohydrates from leaves to roots. It is recommended to apply potassium fertilizers for tomatoes at the same time as planting. For the growth of these plants is not necessary to improve fruit formation and quality.

Lack of potassium, which explains the unripe green part of the tomato, sometimes reaching half of the fruit, or spreading it over uneven areas. But processing tomatoes with fresh potassium fertilizers can lead to an increase in the green mass of the bush, which adversely affects the abundance and quality of the crop. In general, an excess amount of phosphorus is more appropriate than the amount of potassium for proper growth of tomatoes.

The need for potassium for cucumbers leads to fruit deformation (they are pear-shaped), the lashes are elongated, the color of the leaves changes to a darker color. You can feed this culture with potassium sulfate or wood ash. For cucumbers it is recommended to use kalimagnesia in combination with superphosphate during the flowering period (10 g per 10 l of water) as a root dressing. Grapes should be fed with potassium fertilizer every year, for which ordinary ash is most suitable. It can be dried or diluted with water.



Nitroammophos plants need a number of beneficial elements, which makes complex nutrition one of the most popular. Nitrogen-phosphorus-potassium fertilizer or nitroammophoska contains 3 essential minerals for sustainable plant growth.

The fertilizer contains 28% potassium, 24% phosphorus and 17% nitrogen. High-grade dressing with such a composition is useful for any horticultural crops, and especially for tomatoes. Fertilized tomatoes are less susceptible to late blight, scab, as well as root and root rot. Nitroammophos and grapes are needed. The fertilizer is designed for any soil, but interacts better with alumina and black soil.


Potassium nitrate complex

Potassium nitrate

Potassium fertilizers such as salt peter are used for plants during the fruiting period, they are very necessary for cultivation in greenhouses. This fertilizer contains 38% potassium and 13% nitrogen. It is these 2 components that are the most important component for normal plant growth and productivity.

Potassium nitrate can also be used as outerwear. The rate of application of such fertilizers is 20 g per 1 m2, previously diluted in 10 liters of water. Liquid fertilizer from potassium nitrate is applied in the spring, when new shoots appear. When fertilizing the soil, it should be borne in mind that an excessive amount of fertilizer will adversely affect the plants and the crop.


Kalimagnesia is a sulfate of potassium nitrate and magnesium. Potassium-magnesium high dressings are often applied to sandy and loamy sandy soils. Kalimagnesia consists of 26% potassium and 16% magnesium and contains a small amount of chlorine – 3%.

Potassium and magnesium sulfate are mainly used in feeding crops that are very sensitive to high chlorine content. Depending on the type of soil and culture, potassium is the rate of application of magnesium. The amount of root dressing is 10 g per 1 m2.


Potassium fertilizers

Potassium fertilizers are a type of mineral fertilizer designed to meet the potassium needs of plants. They are usually added in the form of water-soluble salts, sometimes with other compounds containing potassium in a form that allows the plant to be consumed.

The importance of potassium fertilizers is determined by the importance of potassium for mineral nutrition of plants. Along with phosphorus and nitrogen, this chemical element is a necessary part of the life of plant organisms, if the first two are presented as an integral part of organic compounds, then potassium is present in the cell stem and cytoplasm.

Potassium fertilizers stabilize metabolism in plant cells, normalize water balance, which allows the flora to better tolerate the lack of moisture, making full use of the amount in the soil.

Competent use of potassium fertilizer increases the resistance of plants to adverse factors, and inexperienced use can lead to unpleasant consequences. Potassiums fertilizer There are two types of potassium-based fertilizer: chloride and sulfate. Each of them has its advantages and disadvantages.


Our experience: potassium for fruits

Potassium sulfate

Potassium 45-53%.

Pros: soluble in water, well absorbed by plants. Contains 18% sulfur (see page 000 on the benefits of ammonium sulfate).

Disadvantages: Not suitable for every soil.

When to bring: to dig in the fall.

Do not mix or add urea, ammonium nitrate, ammonium sulfate, potassium carbonate, lime, chalk, dolomite.

Price: 75 rubles / kg.

Price per hundred square meters: 1 kg = 75 rubles.

Danger! Activates the soil! Use only in neutral and alkaline soils.

Kalimagnesia (potassium magnesium sulfate, cenite)

Potassium 26-28%, magnesium 9-16%.

Pros: no cakes during storage, soluble in water. Very effective fertilizer in light sandy and loamy sandy soils, low in magnesium.

There is no downside!

When to apply: to dig in the fall or directly into the holes in the spring.

Urea cannot be mixed with potassium carbonate.

Price: 80 rubles / kg.

Price per hundred square meters: 2 kg = 160 rubles.

Completely safe fertilizer!

Potassium carbonate

Potassium 52-55%.

Pros: soluble in water, well absorbed by plants.

Disadvantages: in high humidity air cake is formed and even completely melts, so it should be stored only in dry rooms.

When to bring: to dig in the fall.

Not to be confused with anything!

Price: 30 rubles / kg.

Price per hundred square meters: 2 kg = 60 rubles.

Danger! Strongly alkalizes the soil! Use only in acidic soils.

Potassium nitrate

Potassium 46%.

Pros: In addition to potassium, it contains 13% nitrogen, which is one of the main elements of plant nutrition.

Disadvantages: Both potassium and nitrogen are available for plants in neutral soils. Does not work for acidic nitrogen. In alkaline dead weight it is potassium. When stored in a damp room, it turns into a hard stone block. Also, it is very expensive.

When to apply: before planting in spring and as the best dressing in summer.

Do not mix with manure (can ignite the fire!), Ammonium sulfate, potassium carbonate.

Price: 240 rubles / kg.

Costs per hundred square meters: 2 kg = 480 rubles.

Danger! Explosion during storage and use! It may explode if contaminated with any detergent or solvent or at high temperatures.

It can only be stored in a cool place and in an airtight container.

Potassiums chloride

50-60% in potassium.

Pros: Good to use under blue – it loves salt.

Disadvantages: contains chlorine, which is harmful to soil and plants. Cucumbers, peppers, tomatoes and potatoes do not tolerate this element. And this is our main culture! However, manufacturers believe that this fertilizer is very safe, if you apply it in the fall, chlorine will evaporate in the winter. But many agricultural experts recommend avoiding potassium chloride altogether. Indeed, if other potassium fertilizers are available, why is it at risk?

When to apply: to dig the soil in the fall.

Do not mix with lime, dolomite, chalk, potassiums carbonate.

Price: 65 rubles / kg.

Price per hundred square meters: 2 kg = 130 rubles.

Danger! Contains chlorine! And this substance makes the soil saline.

I mean

And the best is ash!

When it comes to organic matter, ash is often mentioned as a fertilizer. In fact, it is a mineral fertilizer. And great!

Ash contains a lot of potassiums, phosphorus (see table of plants) and almost all trace elements necessary for plants. A glass of ash replaces 40 g of potassiums sulfate! In addition, it is absolutely safe for soil, plants and people.

In heavy soils, it is better to carry it under the autumn digging. And in the lungs – in the spring. But in both cases, it is very important to insert it into the soil to a depth of 10 cm, if you put it on the surface, it will form a crust.

Acidic soils can be limed with ash.

If you add this fertilizer to the compost ball, the organic matter will decompose faster.
Ash should be stored in a dry room, as it loses its nutritional value when moistened.

It is impossible to mix manure and poultry manure – this leads to loss of nitrogen.

Based on the materials of the special issue No. 19 “Gardener’s World”

Potassium sulfate production

By the end of 2016, the construction of a large-scale plant for the production of potassium sulfate in the chemical industry of Uzbekistan will be completed at JSC “Electrokimzavod” “Navoi”.

According to official sources, Navoi’s partner is China’s Jiangsu Right Machinery Group.

The cost of the project is $ 10 million, of which $ 1 million is the company’s own funds, $ 4 million – loans from commercial banks and $ 5 million – foreign investments and loans.

The new production capacity is 20,000 tons of potassium sulfate per year.

The main consumer of potassium sulfate is agriculture. Potassium sulfate is a valuable fertilizer without chlorine. This has a much more effective effect on the size and quality of the crop when using nitrogen and phosphorus fertilizers.

Potassium sulfate increases the amount of sugar and vitamins in the grown product.

Navoi Electrochemical Plant was established in 1971 for the production of plant protection chemicals for Central Asia and other neighboring countries – insecticides, herbicides, fungicides.
In 1994, the Uzbek-Panamanian Closed Joint-Stock Company was established on its basis.

Some of the drugs are manufactured by the plant under licenses of registered companies: Dalston Associ SA (Panama), Syngenta (Switzerland), BASF (Germany), FMC (USA), United Phosphorus (India), AJ August »( Russia), using the company’s trademarks, Scelkovo Agrochem OJSC (Russia), Keminova Agro (Denmark) and others.

The main domestic consumers of products are agriculture and Navoi TPP, importers are Tajikistan and Kazakhstan.

Use of potassium sulfate in the field

Use of potassium sulfate in the field

Potassium sulfate is a fertilizer in the cultivation of vegetables, fruit trees and ornamental plants, the use of which helps to increase productivity, increases the resistance of plants to infections and improves the storage quality of the product. In fact, potassium sulfate is a salt consisting of two potassium molecules and a molecule of sulfur oxide (KuleSO₄), this compound does not contain chlorine, so it is a safe nutrient to improve soil properties and perennial plants soil salinity can be used to provide. suitable for chlorine-intolerant country plants, especially from the cruciferous family.

The main feature of the fertilizer is that potassium sulfate is able to balance the acid-base balance of the soil, so it is often used for application to soils with high pH. Depending on various factors, the method of use of potassium sulfate and the time of dressing will vary:

In moist soils the upper fall is closed in autumn, and only the following year seeds or seedlings are sown;
Under mature fruit trees, in the form of a solution through the pits (vertical holes of small diameter up to half a meter of the pit);
When planting young fruit trees, salt is added to the planting holes at the bottom of them;
For row-grown vegetables and berries, they are used for digging in the spring, and again in the summer potassium is used in the form of a solution for watering plants or for the treatment of leaves;
Under the vegetables and berries grown in rows, in the spring they are for digging, and in the summer in the form of a dry fraction in the aisles;
When growing vegetables in heavy clay soils, the application is covered only with a top layer of leaves.

Another point to consider when using use of potassium sulfate in the field compound in the backyard is how to dilute it and fortunately no tricks are needed here as it dissolves quickly in water at room temperature, but keep it long despite the stability of the solution. Not recommended.

This was reported by metronews.ru