What do potash fertilizers look like? When potash fertilizers are applied. When to Apply Potassium Fertilizers

For good growth and normal development, all plants require nutrients at the time they need them. One of the essential ingredients is potassium. Its lack in the soil is compensated in the form of potash fertilizers. Its oxide is K2O, in the form of which the content of the element is calculated.

They are in the first place in the list of basic top dressings and significantly increase productivity in agriculture. Also, tuki is strong for improving product quality and increasing crop resistance to various types of diseases.

What are potash fertilizers?

Potassium fertilizer is a mineral that fruits need to improve their taste properties, for the proper development of leaves, as well as to increase the resistance of crops and garden plants to pest attacks and various diseases. Thanks to him, the crop is stored much longer.

Kinds

The main types of potash fertilizers include:

1. Potassium sulfate. A highly concentrated potassium-containing fat. Contains 50% active ingredient. Valued for the presence of magnesium and calcium. Also, the composition of the substance includes sulfur, which has a beneficial effect on the vital activity of plants. More often used for fertilizer, radishes and radishes;
2. Potassium nitrate. Fat with the presence of potassium (38%) and nitrogen (13%). Advantages given, for the ability to dissolve well in water and long shelf life;
3. wood ash. Common mineral fertilizer. It is valued for its availability and contains such useful elements as: potassium, magnesium, calcium, as well as iron, copper, etc. A large amount of calcium successfully neutralizes strong soil acidity. It is used for feeding potatoes, cabbage and root crops, it fertilizes well;
4. Kalimagnesia. This is a fertilizer that contains potassium and magnesium. Works well on sandy soil. When dissolved, it gives a precipitate;
5. Potassium chloride. The composition of the fat contains 60% of the active substance. It looks like small pink crystals. It is considered the main potassium-containing fat. Application found on all types of soils, except for sandy soil. Suitable for nourishing fruit trees and berry bushes;
6. Potassium salt. In addition to 40% of the active substance, it contains a chlorine element. Not recommended for use in the spring and summer;
7. Potash. It does not contain a chloride element, but potassium oxide slightly exceeds 50%. Potassium carbonate is active on acidic soil.

Advantages and disadvantages

The advantages of potash fertilizers include the following:

1. Strengthening the immune system of the plant. Thanks to this, the culture is completely protected from diseases and harm from weather conditions;
2. Reliable barrier against harmful insects;
3. Compatibility with other mineral fertilizers;

Almost all crops easily absorb potash fertilizers.

If we talk about the minuses, then it all depends on the type of potassium-containing fat:

• Potassium sulfate - not effective on all soils.
• Potassium magnesia ─ the union with potassium carbonate is prohibited.
• Potash or potassium carbonate - no mixing with anything. Poorly stored.
• Potassium nitrate ─ can only be used in neutral soil. Application simultaneously with manure is not recommended. With high humidity, it turns to stone. The cost of fertilizer is very high.
• Potassium chloride - contains chlorine, which adversely affects the soil. Not suitable for most vegetable crops. Important! Chlorine is very polluting.

Remember! If you are using potassium nitrate, keep solvents and detergents away. If saltpeter is accidentally combined with one of these agents, it explodes.

How is potassium fertilizer obtained?

main sources

To obtain potassium-containing fats, the following raw materials are used:

1. Mineral potassium formations, that is, ores;
2. Product from fertilizers of natural origin;
3. Waste from industrial processing.

If we take the main type, then it is obtained from natural salts that are processed. They contain sulfur such as langbeinite, schenite and kainite, as well as carnallite and sylvinite chlorides.

Signs of potassium deficiency

Potassium is found in plant cells in ionic form, as well as in cell sap. Its content is much less in the root system, tuber and seed. The young leaf and shoot contain the highest amount of this element. There is much more potassium in the stems of cereal crops than in the grains themselves. Using straw as the main feed for cows, the element passes into manure, and then back into the soil. This is how the fertility of the land is restored.

If the potassium element is not enough, then the plant signals this by external signs:

1. There are many spots on the foliage.
2. Foliage changes color. At first it becomes yellow, then it can turn brown, and sometimes turn blue.
3. The edges of the leaves dry up, the cells of the leaf plate gradually die off.
4. Leaf veins sag, trying to hide in the tissue structure.
5. The stem loses density and becomes thin.
6. Plant growth is drastically slowed down.
7. Visible wrinkled folds appear on the surface of the leaves.
8. The process of formation of ovaries and buds slows down.
9. All foliage on the plant is twisted.

With a lack of this element, processes such as:

1. The synthesis of a simple carbohydrate into a complex one is slowed down;
2. The cells stop producing protein;
3. The reproductive organs stop developing;
4. The stalk of culture is weakening.

How to apply?

• Potassium-containing fats in their composition contain substances that are highly soluble in water.. When they are introduced into the ground, they instantly react with its constituents. Chlorine, which remains in the composition, is gradually washed out of the ground.
• Fertilizers with potassium are applied in October, when they dig up the garden. During this process, there is a proper mixing of substances with the moist layers of the earth, where the root is usually located. Nutrients are absorbed faster.
• In the case of loose and light soil, potassium-containing fertilizers are recommended to be applied in March, April. This is done so that the potassium element does not quickly wash out of the soil.
• Potassium-containing fats are highly acidic. Therefore, it is better to use them in combination with lime.

For cucumbers

The most common option for feeding cucumbers is the use of sulfate fertilizer with an active ingredient concentration of 50%. The white crystalline powder is easily dissolved in water. It is important to note that it does not contain chlorine.

Before applying one of the fertilizers, you need to know the composition of the soil and familiarize yourself with the requirements for growing each individual variety of cucumbers.

Cucumbers always change the color of the foliage if they need potassium-containing fats.

Before the appearance of fruits, cucumbers are fed with mullein. To do this, 200 grams of manure is diluted in 12 liters of water.

For tomatoes

Potassium chloride and potassium sulfate for fertilizer are the best fit.

It is common for gardeners to use potassium sulfate, due to the lack of a chlorine element in it. As for potassium chloride, it will ideally fertilize the soil after picking tomatoes, that is, in the fall.

When buying a fertilizer, always pay attention to the recommendations for use, they are always indicated on the packaging.

In order for the tomatoes to receive the required amount of potassium-containing elements, it is necessary to add 50 grams of potassium sulfate diluted in 1 cube (100 l) of water to the ground. With such nutrition, tomatoes on the bushes will increase significantly, and the stem with leaves will have a healthy appearance.

Oddly enough, the main widely available organic fertilizer with potassium is furnace ash.
The ash contains potash K2CO3, also known as potassium carbonate. Its amount strongly depends on the types of fuel burned.

For example, the ash of young deciduous plants contains up to 14% potassium oxide. In old conifers, it is less.

Ash can be called a complex fertilizer, because, in addition to potassium, it contains phosphorus. The presence of potassium oxide in the ash allows it to be used on soils with high acidity.

The second most important source of organic potassium is slurry - a quick-acting nitrogen-potassium fertilizer. It is used mainly as top dressing: it is diluted with water 5–6 times and applied to the soil after preliminary watering in about a day.

Let's go ahead and see what other organic fertilizers contain potassium?

This is a well-known pond and lake silt. Silt is an excellent organic fertilizer with potassium, because in terms of potassium content it is second only to furnace ash. In addition to the source of organic potassium, ash has another 70 substances useful for plants.

Sludge contains up to 30% humus, up to 2% nitrogen, 8% potassium and 5% phosphorus. Moreover, the upper layers of silt are richer in nutrients than the lower layers.

lake rich in silt

It contains about 15% of water and 85% of valuable nutrients needed to improve soil fertility - nitrogen, phosphorus, potassium, calcium, manganese, sulfur, boron, copper, zinc, molybdenum.

However, when the straw decomposes, it loses a lot of nitrogen, and some more is washed out of the soil, so it is better to use straw in composts or in the form of straw cutting.

As we can see, the potassium content in it is significantly small compared to the above fertilizers and is no more than 1%.

If you add a large amount of banana peel to it, then the potassium content in the humus will grow and we will get a more valuable substrate. Besides .

In all other cases, potassium is extracted by processing potash ores and natural salts. Sylvinite, langbeinite, and schenite are leaders in potassium content (about 25%).

Liquid herbal fertilizer - contains the more potassium, the more green raw materials it contains. Potassium is easily washed out of plant tissues into an aqueous solution. Young plants are predominantly rich in potassium, including ordinary young grass, regardless of its name.

However, there are wild plants that are especially rich in potassium. These are dandelion, comfrey, nettle, bracken, yarrow, horsetail.

Organic potash fertilizer from dandelions.

Dandelion leaves contain 397 mg. potassium for every 100 gr. weight of the green mass of the plant. The absolute champion in the content of potassium in the ground part of the plant is parsley; it has exactly 2 times more potassium than dandelions. But of course, parsley is best eaten, but dandelions can be used to make a first-class potash fertilizer.

To do this, take a 10 liter plastic bucket and fill it halfway with dandelion leaves. And the remaining space is filled with non-chlorinated water. Of course, you don’t need to pour water straight to the edge of the bucket. Because it will be inconvenient to stir sugar in this water later. Which you need to put there 50 gr. and microbiological fertilizer Baikal. Which you need to pour 150 ml.

After everything is mixed, the bucket must be closed with a lid. Or make an impromptu cover from a plastic bag. Pulling him to the bucket with a rope.

When our fertilizer acquires a specific smell of decaying residues, it is ready for use for plant nutrition.

To feed plants with this fertilizer, you must first shed your plantings with plain water. Because in addition to the nutrients, our fertilizer will contain a large number of beneficial microbes. And I want them to live in the soil for some time, and not die immediately.

Then we take 1 liter of our microbiological fertilizer from dandelions, dilute it in 10 liters of water and water our plants.

Potassium in plant life.

Potassium helps plants absorb carbon dioxide from the air and nitrogen from the soil. Increases their winter hardiness and drought resistance, and is also necessary for plants to create a strong cell membrane. It is contained mainly in the leaves of the plant, and in its roots it is quite small.

The introduction of this element not only increases the yield of crops, but also improves the quality of fruits and grains. Also, this element takes part in the synthesis of vitamin C; in case of a lack of this vitamin, the fruits lose their color and aroma.

Potassium deficiency causes many metabolic disorders in plants, the activity of a number of enzymes is weakened, carbohydrate and protein metabolism is disturbed, and the cost of carbohydrates for respiration increases. As a result, the productivity of plants falls, the quality of products decreases.

Externally, potassium starvation manifests itself primarily on the leaves of the lower tier. The leaves turn yellow prematurely, starting at the edges, then the edges turn brown, and then die off and collapse. As a result, the leaves look like burnt, this phenomenon is called "marginal burn".

With severe potassium starvation, the shoots die off by the end of the season, grapes are especially sensitive to a lack of potassium.

Excessive potassium nutrition of plants also negatively affects their growth and development. It manifests itself in the appearance of pale mosaic spots between the veins of the leaves, which turn brown over time, and then the leaves fall off.

Potash and potash fertilizers Video:

To obtain high yields, farmers use various fertilizers. One of the types of mineral supplements is potassium supplementation, which compensates for the lack of potassium in plants. In most cases, such a composition can be found in the form of a salt soluble in water, less often in combination with other components.

The role of potassium in plant life is great. What gardener doesn't use them?! Mining is carried out from ore, in deposits of a natural type. This fertilizer can be used on any soil composition:

• chernozem;
• clay terrain;
• on sand beds.

Potassium is considered an important component that helps in the development of plantings, as it distributes sugar through the tissues to ensure normal nutrition, the formation of sweet and juicy fruits.

It is perfectly combined with many mineral components, creates complex mixtures with them. There are many tools, and each has its own name.

How to determine the lack of a mineral in the soil

Plants cultivated in light peat areas need the most potassium supply. Especially strong signs of insufficiency of such an element are expressed in the summer season:

• brown spots appear on the leaves;
• foliage changes shade, becomes yellow or bluish with a bronze tint;
• “marginal burns” are observed - the tips and edges of the sheet begin to die off;
• veins are deeply immersed in green tissue;
• the stem becomes thin;
• landing stops intensive growth;
• wrinkles appear on the leaves, they curl;
• the bud formation process is suspended.

Types of potassium supplements

If we consider the chemical composition, then the potassium group is divided into chloride and sulfate, and by manufacture they are raw and concentrated.

Any type is distinguished by its positive and negative characteristics, has features in its application.

Potassium chloride

- the most popular option, represented by pink-colored crystals, which perfectly absorb water and can cake during improperly organized storage, which will significantly worsen their solubility at the time of use.

The top dressing contains about forty percent of chlorine, so this top dressing is not used for chlorophobic plants. It is best to apply in the autumn season, so that chlorine evaporates from the soil as quickly as possible.

The main disadvantage is the ability to accumulate salts in the ground, increasing its acidity.

Based on the foregoing, fertilizer must be applied in advance, to prevent overdose.

potassium sulfate

Smallish gray crystals, perfectly soluble in water. They do not absorb moisture, do not cake during storage. The composition includes magnesium and calcium, which only improves the beneficial qualities for plants.

The presence of sulfur does not allow the accumulation of nitrates, prolongs the safety of plants. This allows you to feed vegetable crops with such fertilizer.

There is no chlorine in the top dressing, for this reason it can be used at any time on almost all soil compositions. The exception is lands with a high level of acidity.

potassium sulfate

wood ash

A versatile and commonly available product, suitable for all plants and almost all soil formulations. The fertilizer does not contain chlorine and can be used at any time. Ash is poured in a dry state, diluted with water.

It is not mixed with manure and bird droppings, it is not combined with nitrogen mixtures and superphosphates.

wood ash

Potassium salt

This is a mixture consisting of potassium chloride and finely ground sylvinites. The percentage reaches forty, which makes top dressing not so suitable for feeding plants that are sensitive to potassium chloride. For this reason, the composition is applied to the soil in the fall, during the digging of the beds. In the spring, it is allowed to use salt if the soil is very waterlogged. The water will flush out the chlorine and the potassium will remain in the soil. In the summer, the composition is not used.

If we compare fertilizer with potassium chloride, then salts can be applied one and a half times more.

Potassium salt

Kalimagnesia

Does not contain chlorine, great for feeding potatoes, tomatoes and other vegetable crops. Due to the magnesium content, the product is recommended for use on sandy and sandy beds. The product is hygroscopic and spreads well.

Potash

The composition is characterized by increased hygroscopicity, it quickly begins to cake if it is moistened. In this case, its properties are lost. To improve the characteristics, lime is sometimes poured into it, but then there is a threat of increasing acidity in the soil.

Potassium nitrate

Contains nitrogen, which favorably affects the development of plants. The fertilizer composition is perfectly preserved in dry storage. With low humidity, it hardens and becomes almost unusable. It should be applied in the spring, during planting. The use of saltpeter is also allowed in the summer season.

Importance of cement dust

The element is part of a variety of salts, highly soluble, which makes it possible for potassium to easily saturate plant cells. It is used for crops that do not respond well to chlorine. It can also neutralize the acidity of the soil. Therefore, the importance of such top dressing is great.

The value of fertilizing in plant life

Oxidation in plant cells occurs more intensively, there is an increase in cellular metabolism. Cultures easily react to insufficient moisture, photosynthesis is faster. There is a rapid adaptation to negative temperatures, the level of resistance to pathogenic manifestations increases.

Application technology for plants

There are three options for the use of fertilizers:

• pre-sowing;
• pre-sowing;
• post-sowing.

It is most used in the fall, as many of its varieties contain chlorine. Doses are set taking into account the depletion of the land.

It will be better if you scatter the fertilizer over the surface several times, keeping a distance of fifteen centimeters from the roots. Liquid formulations work effectively, they should be prepared according to the instructions.

The supplement is really popular. It is only necessary to remember that an excessive dose of potassium or violations in the use of the composition harm not only the plants, but also the soil composition. Particular care should be taken with compounds containing chlorine.

For growth, health and harvest

Potassium is a vital element for plants. With its deficiency, the reproductive organs lag behind in development, the stems and shoots become fragile. The introduction of potash fertilizers promotes the growth of leaf mass, increases the immunity of plants and their resistance to pests and diseases. A full-fledged crop is formed, and fruits and berries are stored longer. Let's look at the most common potash fertilizers.

Potassium sulphate (potassium sulfate)

Potassium in this fertilizer is approximately 50%. It is usually applied under crops that do not respond well to chlorine (for example, grapes). Potassium sulphate is very well suited for vegetable crops grown in greenhouses. Fertilization with potassium sulfate has a positive effect on the crop of legumes.

Potassium sulphate is considered one of the best potash fertilizers, since it does not contain toxic additives - sodium and chlorine. The main method of application is in autumn or spring, both for digging the soil, and directly into the hole when planting.

For digging the soil in the autumn, 25-30 g per 1 m 2 are usually applied.

Potassium sulphate helps to increase sugar in fruits, increases the content of vitamins, improves the taste of fruits and berries.

Plants need potassium most of all during the period of budding, during flowering, and trees and shrubs with potassium sulfate can also be fed during fruiting.

wood ash

A natural fertilizer containing potassium is wood ash. It usually contains about 15% potassium, there is phosphorus and trace elements. Ash is ideal on soils with high acidity.

Application rates on sandy loams are about 150-220 g per 1 m 2. On loam, the dose can be doubled or tripled if there is a lot of clay in the soil.

Potassium chloride

In the first place in this list is potassium chloride. This fertilizer contains about 63% potassium.

Potassium chloride is good for berry crops, however, due to the presence of chlorine, which many cultures perceive negatively, it is advisable to introduce it before winter, embedding it into the soil along with digging the soil or loosening it.

It is undesirable to add potassium chloride to planting holes for seedlings. Sugar beets, carrots and potatoes respond as well as possible to the introduction of potassium chloride. The introduction of potassium chloride is effective for grapes, cereals, tomatoes and cucumbers (for autumn digging). May be used for corn.

Fruit trees respond well to potassium chloride fertilizer

In autumn, they usually apply 10-20 g of fertilizer per 1 m 2, and in spring - 3-5 g per 1 m 2.

Kalimagnesia

This fertilizer contains up to 29% potassium and about 9% magnesium. It is most effective on light soils (sandy and sandy).

Potassium in combination with magnesium helps to increase plant immunity, resistance to return frosts and winter frosts, accelerates maturation and increases yield. Potassium magnesia is ideal for grapes, potatoes, tomatoes, grains and legumes, radishes and onions.

The application rate is from 30 to 60 g per 1 m 2 in the autumn and spring periods. In summer, the dosage should be 9-11 g per 1 m 2.

Potassium magnesia is also indicated for application during flowering and the beginning of berry set.

Advice

Potassium salt is appropriate to apply to sandy, sandy loam, peat soils, where a lack of potassium manifests itself most often.

Potassium salt

Potassium salt can be of different percentage concentrations (40% - potassium chloride and sylvinite and 30% - potassium chloride and kainite). It is not recommended to apply this fertilizer under plants that do not tolerate chlorine well, because it contains more chlorine than potassium chloride.

It is possible to fertilize the soil with potassium salt as safely as possible for plants in autumn. The application rate is 25-35 g per 1 m 2.

Potassium carbonate (potash, potassium carbonate)

This fertilizer contains chlorine, magnesium, sulfur and up to 55% potassium. Potatoes respond best to this fertilizer.

Top dressing during the season is about 18-22 g per 1 m 2. With autumn incorporation into the soil, the fertilizer rate can be increased to 40-60 g per 1 m 2. In spring, the maximum doses are 80-95 g per 1 m 2.

cement dust

Good potash fertilizer without chlorine in the composition. The most effective use of cement dust on soils with high acidity.

The application will have a positive effect on plants that do not tolerate chlorine well. The application rate is 50-70 g per 1 m 2 in spring and autumn.

To obtain high yields, farmers use various top dressings - fertilizers. Both organic and mineral components are introduced into the soil. Each type of fertilizer is very important, therefore, in no case should one component be neglected, considering that if organic matter is added to the soil, then minerals are no longer required.

One of the most important mineral supplements is potash fertilizer.

Article plan

What are potash fertilizers?

Potash fertilizers are extracted from the so-called potash ores, in natural deposits. Such fertilizers are applied to all types of soil: chernozem, clay and even sandy. Potassium is an extremely important component for the development of all plants, since it promotes the distribution of sugars through tissues, which ensures normal plant nutrition, the formation of tasty and sweet fruits.

Potassium is responsible for the growth of foliage and increases the level of plant resistance to diseases and various pests. Fruits saturated with potassium are well stored in the winter. Potash fertilizers introduced into the ground are assimilated by crops by almost 100%.

Potassium is perfectly combined with other minerals, forming complex top dressing. There are various potash fertilizers, each of which has its own name.

Simple potash fertilizers

It would seem that potassium chloride is completely unsuitable for fertilizing plants and is generally toxic. The composition of the component includes 60% potassium and chlorine, which is extremely harmful to all plants. To fertilize the soil with potassium chloride, farmers begin to apply this component in advance.

Potassium fertilizers are most well perceived by berry crops, but despite this, they also do not tolerate chlorine included in top dressing. Given the negative effect of chlorine on crops, potassium chloride is applied to the soil only for the winter, before plowing.

Potassium sulfate is known to many as potassium sulfate. Most farmers believe that potassium sulfate is one of the best potash fertilizers. Among the many different mineral fertilizers, only potassium sulfate does not have toxic additives such as sodium, magnesium and chlorine. Top dressing is applied to the soil in the autumn-spring period directly into the hole.

Potassium sulfate is allowed to combine with other types of fertilizers, without any harm to plants. The amount of applied top dressing is calculated for a specific case separately.

In winter, before digging, potassium sulfate is applied in the amount of 30 g per 1 m², and in spring period, before boarding, the amount of fertilizer is reduced to 5 g per 1 m². Potassium sulphate is used as a fertilizer not only for open, but also for closed ground. The use of this fertilizer increases the level of sugar and vitamins in fruits, the products become tastier, juicier and healthier.

Plants fertilized with potassium sulfate are resistant to many diseases, and finished products are much less affected by gray rot.

consists of 2 components: potassium chloride and sylvinite. By mixing these two components, a complex called potassium salt is formed. The concentration of the substance is 40%. Potassium salt with a lower concentration (30%) is obtained by mixing potassium chloride with kainites.

Potassium salt contains much more chlorine than potassium chloride, so it is not recommended to feed plants that do not perceive chlorine well.

Cultures, the growth and development of which is not affected by chlorine, are fertilized strictly according to the prescribed recommendations and according to the dosage. This fertilizer is recommended to be applied to sandy, sandy and peaty soils, since it is in such soils that a lack of potassium is often observed.

The soil is fertilized with potash fertilizing only in autumn as the main plant nutrition. The amount of potash salt per 1 m² ranges from 30 to 40 g. In the spring and summer seasons, it is not recommended to fertilize the soil with potash salt.

Potassium carbonate is also called potassium carbonate or Potash. The composition of this potassium supplement does not include chlorine and is considered one of the most recently developed forms of potassium supplements. Top dressing contains 55% potassium oxide, a small amount of magnesium and sulfur. Potassium carbonate is widely used for potato production.

The rate of application of potash to the soil depends on the time of year and the purpose of feeding.

• As a regular top dressing, the rate ranges from 15 to 20 g per 1 m².
• In autumn, the soil is fertilized in the amount of 35-65 g per 1 m².
• With spring recharge, the rate increases to 85-100 g per 1 m².
• The dosage of late top dressing is 16-18 g per 1 m².

At industrial facilities, potash is obtained by processing natural potassium salts. Potash is a by-product from the processing of alumina and nepheline. Potash can also be obtained on your own personal plot by processing plants and ash.

Ash is considered a natural, inexpensive and readily available mineral fertilizer. It contains only 10% potassium, calcium, magnesium and phosphorus, boron, iron and copper. Feeding the soil with potash fertilizers in the form of wood ash is applied to the soil throughout the year and regardless of the season. In spring, wood ash is applied when planting, and in autumn before plowing.

In summer, ash can be used as a dry fertilizer or diluted with liquids and various complex feeds can be made. In winter, wood ash will become an indispensable fertilizer for all greenhouse crops. Wood ash not only saturates plants with elements important for life, but also protects against pests.

cement dust

Oddly enough, but cement dust also applies to mineral fertilizers. These fertilizers are obtained from cement production waste. Cement dust is an excellent potash fertilizer that does not contain chlorine.

Top dressing is used mainly on acidic soils for plants that do not take chlorine well. Sometimes cement dust is mixed with milled peat to improve its physical properties, in a ratio of 1:1.

Complex potash fertilizers

Such potash fertilizers as saltpeter are used for plants that are in the fruiting phase. Potassium nitrate is essential for crops growing in greenhouses. This fertilizer contains 38% potassium and 13% nitrogen. It is these 2 components that are considered the most important components for the normal growth and yield of plants.

Potassium nitrate can also be used as an external top dressing. The application rate of such a fertilizer is 20 g per 1 m², previously diluted in 10 liters of water. Potassium nitrate liquid fertilizer is applied in the spring when new shoots develop. When fertilizing the soil, one should not forget that an excess of top dressing will negatively affect plants and yields.

If the soil is fertilized with several top dressings containing nitrogen at once, then their dosage is reduced by 2 times. Farmers do not recommend applying nitrogen during the flowering period of plants.

Kalimagnesia is a sulfate of potassium and magnesium. Potassium-magnesium top dressing is most often applied to sandy and sandy loamy soils. Kalimagnesia consists of 26% potassium and 16% magnesium and includes a small amount of chlorine - 3%.

Potassium and magnesium sulphate is mainly used to feed crops that are extremely sensitive to high chlorine content. In accordance with the type of soil and crop, the application rate of potassium magnesia is calculated. The amount of root dressing is 10g per 1 m².

Nitrofoska is a nitrogen-potassium fertilizer ideal for soils that need phosphorus fertilization. Timely application of nitrophoska ensures abundant flowering of crops, good development and normal fruit formation.

Fertilizer refers to cheap, simple and, at the same time, effective top dressing. Nitrofoska can fertilize any garden and garden crops.

Plants need a number of useful elements, which makes complex top dressing one of the most popular. Nitrogen-phosphorus-potassium fertilizer or nitroammophoska contains 3 necessary minerals for the stable development of plants.

The fertilizer contains 28% potassium, 24% phosphorus and 17% nitrogen. Top dressing with this composition is useful for any horticultural crops, and especially for tomatoes.

Fertilized tomatoes are much less susceptible to late blight, scab, as well as stem and root rot. Needs nitroammophoske and grapes. The fertilizer is intended for all types of soils, but interacts better with alumina and chernozem.

Symptoms of potassium deficiency

What can be fertilized with potassium fertilizers

tomatoes

Unlike other crops, tomatoes are not heavily dependent on potassium. To get 100 kg of tomatoes, 50 kg of potassium will be enough. Tomatoes do not tolerate fresh organic fertilizers well, and if they are applied, the vegetative mass increases significantly.

Potassium top dressing for tomatoes affects the quality of the fruits themselves to a greater extent than contributes to an increase in yield. Tomatoes are demanding on the content of phosphorus in the soil, therefore, it is recommended to use complex top dressings as fertilizers.

Norms of potash fertilizers for tomatoes:

• At the first feeding per hundred square meters - 0.15 kg.
• With the second top dressing per hundred square meters - 0.30 kg.

Cucumbers are demanding crops, for their normal development and productivity, the soil must be fertile and balanced in all minerals. To obtain 100 kg of cucumber, 44 kg of potassium are needed. Potash fertilizers for cucumbers are applied in several stages: before sowing, after 14 days after planting in the ground and during the initial flowering period.

Norms of potash fertilizers for cucumbers:

• During the sowing period per hundred square meters - 0.1 kg.
• At the first feeding per hundred square meters - 0.2 kg.
• With the second top dressing per hundred square meters - 0.4 kg.

Potash fertilizers for grapes are applied to the soil annually, since grapes consume a large amount of potassium during the season. Plain ash can be an ideal fertilizer for grapes. Ash is applied in dry form in the amount of 1 bucket per 1 bush or diluted with water (to obtain an extract, ash diluted with water must be infused for 3 days before use).

How do I fertilize grapes with potash fertilizers

Flowers

Potassium fertilizers for flowers are very important, because it is thanks to potassium that healthy shoots develop and large buds form. Flowers are very demanding on potassium, and with a lack of it, negative changes immediately appear.

With a lack of potassium observed:

1. Slow growth.
2. Falling leaves.
3. The buds are getting smaller.
4. Flowering time is shortened.

Potash fertilizers for roses are applied not only during planting, but during flowering, to obtain large and long-blooming buds. Flowers are fed with potash fertilizers in autumn and spring. Most often, potassium sulfate and nitrogen-phosphorus complexes are used for top dressing.

More about phosphorus-potassium fertilizers

When to Apply Potassium Fertilizers

Plants always show the gardener what they lack, they just need to learn how to correctly recognize these signs. When crops slow down in development, and the leaves grow dull and acquire a grayish tint, then it is time to apply potash fertilizers. There are several ways to fertilize the soil, each of which must be done at a certain time and in the shortest possible period, since the fertilizer quickly dissolves in the ground and may become less active after 24 hours.

There are several main periods for applying potash fertilizers:

1. Presowing or the main fertilizer is applied in autumn or spring, based on the climatic conditions of a particular zone. Fertilizer before sowing provides green crops with nutrients for the whole season.
2. Sowing or starter fertilizer is applied to the soil directly at planting. Starting feeding helps young plants to take root and ensures stable development in the early stages.
3. Post-sowing fertilizer or top dressing is an additional measure to the above methods. The main task of top dressing is considered to be auxiliary nutrition at the peak of growth and feeding with the missing elements.

Most often, potash fertilizers are applied in the autumn., since most of them contain chlorine, which has time to neutralize only during the winter months. Doses of application are adjusted depending on the depletion of the soil. It is almost impossible to get a good harvest on depleted soils, but when fertilizing, you also need to know when to stop.

When planting seedlings, it is undesirable to fertilize with dressings that contain chlorine, since young shoots may die.

It is recommended to fertilize the plants twice in small quantities. than one and many. Sprinkling fertilizer several times a season on the upper layers of the soil, at a distance of 10-15 cm from the root system, is considered much more effective than a one-time top dressing.

Most often, farmers use potassium nitrate as a fertilizer, since it is suitable for almost all plants.

Liquid potash fertilizers are considered the most effective top dressings, since their action begins immediately after entering the soil. It is necessary to dilute potash fertilizers with water based on the attached instructions, and water the root system. Saltpeter is diluted with water in a proportion of 10 liters of water per 30-40 g of top dressing, on the basis that 1 liter of liquid goes to 1 bush (0.5 l for cucumbers).

Humic fertilizers and their combination with potassium

Humic fertilizers are organic top dressings that are formed by processing products of natural origin, such as brown coal, peat and sapropel, resulting from the decay of leaves, branches, roots and animal remains.

Humic fertilizer is considered environmentally friendly and versatile. When hit, it does not kill the natural microflora, but improves the physical characteristics of the soil.

The introduction of humic fertilizers into light soils increases their moisture capacity, and when it enters heavy soils, it increases the level of water permeability, improves the structure of the earth and reduces its density.

These fertilizers help eliminate heavy metals and radionuclides by forming insoluble elements with them, which prevents the absorption of harmful substances by the root system. In turn, this increases the rate of decomposition of chemicals in the ground. In fruits growing on plants fertilized with humin, a significantly lower amount of nitrates is observed.

The disadvantage of humic dressings is that they are used in small concentrations, so I cannot fully replenish the soil with elements such as potassium, phosphorus and nitrogen. Humic potash fertilizers are a mixture of humins and potassium. With a mixture of humins with potassium and nitrogen, excellent complex fertilizers are obtained.

Humic fertilizers should not be combined with phosphorus, since as a result of the interaction a compound is formed that practically does not dissolve and does not have a positive effect.

Humic fertilizers are in solid and liquid state. Solids are easy to transport and store, but liquid solutions are considered more efficient.

Why potash fertilizers

Potash fertilizers are mineral fertilizers that are very important for the development and fruiting of plants. It is thanks to the normal level of potassium that you can get a high yield of any crops, protect plants from pests and various diseases.

Potassium fertilizers increase the survival rate of plants and the preservation of fruits. But potassium has the best effect on taste, with a normal amount of this element in the soil, farmers get high yields of large, tasty and sweet fruits that are stored for a long time and do not rot throughout the winter.

Potash fertilizers, and especially their complexes, are the key to the success of all gardeners who put their strength and love into every seed.

Complete analysis of potash fertilizers in 5 minutes