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Potash fertilizers, their value and application

fertilizer granules The main sign of a lack of mineral nutrients is the appearance of marginal burns on the leaves, their darkening and folding. This means that the plant needs potash fertilizers..

Together with phosphorus and nitrogen, potassium acts as one of the main elements of mineral nutrition for plants, but unlike them, it is not a constituent part of organic matter. Ionic form of potassium in the form of soluble salts, found inside plant cells, in cell sap.

There is much more potassium in the vital parts of young plants than in the same, but older representatives of the species. If potassium is insufficient in the nutrient medium of young shoots, then the process of re-utilization occurs (reuse of nutrients as a result of the outflow of potassium from old plants to the organs of young, growing inflorescences).

potassium granules Potash fertilizer is a type of mineral fertilizer that improves the taste and quality characteristics of horticultural crops. Its use improves immunity and provides the plant with resistance to disease. Potassium protects the plant from various pests in the form of small beetles, caterpillars, insects. With the use of potash fertilizers, garden and horticultural crops become resistant to cold, they more easily tolerate changeable weather conditions.

How to apply potash fertilizers for cucumbers in greenhouse growth conditions?

cucumberCucumbers are early ripening types of vegetable crops. In greenhouse conditions, cucumbers develop even faster and can produce crops almost all year round. Like other plants or garden crops, cucumbers need fertilization..

Since their root system is not resistant to a lack of nutrients, this can lead to the loss of part of the crop. Therefore, it is necessary to apply the necessary fertilizers to the soil on time, while the value of potash fertilizers is very large.

Before starting to feed all the plants, it is recommended that you first try the effect of the fertilizer on several bushes. After 2-3 days, you should check the fed cucumber bushes. If their growth has improved, it means that the proportion is maintained correctly, and potash fertilizer can be applied to the soil to all the remaining bushes..

Cucumbers do not tolerate excess and deficiency of potassium. The first signs of potassium deficiency are the appearance of a light green edge along the edge of the leaves. Oversaturation with potassium causes the appearance of a mosaic yellow-green color on the leaves and a decrease in the amount of magnesium.

To avoid this, you need to know how to apply potash fertilizers for cucumbers during their greenhouse growth..

The planning of the number of dressings for greenhouse cucumbers largely depends on the preparation of the soil in the greenhouse in autumn and spring.

the soilBased on the practice of soda and garden research, direct feeding of the cucumber plant on poorly prepared soil should be carried out only in the summer period from 3 to 5 times, at approximately the same intervals or according to the needs of a particular bush.

With well-fertilized soil in the greenhouse in spring or autumn, only two dressings are carried out:

  • Before the cucumber bush starts to bloom. For this, summer residents prepare a complex fertilizer (add to 10 liters of water: mullein or liquid bird droppings – 0.200 kg., Superphosphate – one teaspoon, potassium sulfate – 1 teaspoon). With this substance, plants are watered at the root with a watering can..
  • Before fruiting. Fertilizers are applied by gardeners during the formation of ovaries. For this, a 10-liter bucket of water and 150 g of mullein are used, and one tablespoon of nitrophosphate should also be added.

the soil

If mullein is not available, you can use regular herbal tea made from finely chopped nettle, woodlice and chalice roots. It is insisted for about 5 days, then it is applied to the soil at 3 l / m2. Potassium fertilizer for cucumbers can also be applied in the form of potassium chloride. You can use it in the case of an open greenhouse..

You should know that the use of chlorine is highly undesirable for cucumbers. Potassium chloride is not applied directly for plant nutrition, but long before that, during the autumn soil preparation. Before the cucumbers are planted in the soil, the rains will wash the chlorine out of the soil, leaving potassium useful for cucumbers in it.

The most suitable and optimal option for mineral fertilizer for cucumbers, regardless of the place of planting (greenhouse or vegetable garden), is the use of potassium sulfate. In another way, it is called potassium sulfate fertilizer (contains 50% potassium). It is in the form of a crystalline powder with a grayish tint or pure white color, which is easy to dissolve in water. Most importantly, it does not contain chlorine..

The application of mineral fertilizers in the required proportions depends on the spring and autumn soil preparation. Before using this or that potassium-based fertilizer, you need to know the characteristics of the soil and the nutrient requirements of cucumbers. The need to apply nutrition for cucumbers is evidenced by the color of their leaves and the condition of the root system..

Potash fertilizers for tomatoes

tomatoesFor growing tomatoes, mineral fertilizers such as potassium chloride and potassium sulfate (potassium sulfate) are used..

Most often, summer residents use potassium sulfate in the form of potassium fertilizer for tomatoes, since it does not have chlorine. It can be used for direct feeding of tomatoes. Potassium chloride is used in the fall, when preparing the soil after harvest.

To achieve the maximum possible results of tomato yields, you need to know the required rates of fertilization in the soil. Usually there is a table on the package for the application of fertilizer for tomatoes..

In order for the tomato bush to receive the required amount of potassium, 40 g of potassium sulfate per 1m2 are introduced into the soil. Such soil replenishment will help to increase the yield of tomatoes and protect the plant from wilting of leaves..

Potash fertilizers for roses

watering rosesOf all types of potash fertilizers, potassium sulfate is well suited for the first feeding of roses. With further replenishment of the bushes, summer residents use potassium nitrate, which is introduced into the soil during their flowering period in spring.

Before the onset of flowering roses, it is recommended at intervals of once every 7 days, to make 15 g of potassium sulfate per 1 m2 of soil. This should be done 3 weeks before flowering. Then, every summer month, the process must be repeated..

The rose is very sensitive to the use of fertilizers, so they need to be applied after watering..

Signs of a lack of potassium fertilizer in roses:

  • Reduction of the rose flower in size.
  • Slow bush growth.
  • Dry leaves around the edges.
  • Reducing leaves.
  • Falling leaves from the stem.

Feeding roses, they alternate the types of fertilizers. In this case, potassium fertilizer for roses can be alternated from superphosphate.

Potash fertilizers are one of the most useful mineral fertilizers for all types of plants. Only its direct use in the form of a compound with chlorine is undesirable for some plant species. Therefore, you need to take this fact into account when fertilizing garden crops..

Potash fertilizer video

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