Vegetables

Cabbage has purple leaves: what to do, why, what is the reason

Cabbage has purple leaves: what to do, why, what is the reason
Anonim

Why cabbage has purple leaves, what to do in this case - few people know. Cabbage is a favorite vegetable of many gardeners. It is planted everywhere. In terms of care, the culture is quite picky. The only thing that worries gardeners is that the plant is quite easily affected by diseases and attacks by pests. The appearance of purple leaves is a reason to beware. There may be several reasons for this phenomenon.

How to choose a variety for seedlings

So that the plant does not get sick, and the heads of cabbage grow strong and strong, you need to carefully consider the choice of seeds for seedlings. It is this factor that determines when receiving a crop, the quality of which does not always correspond to the expected.

Before buying seed material, the summer resident must determine for what purposes it is necessary to grow cabbage:

  • for use in the summer as part of vitamin salads;
  • for fermentation and preservation in s alt form;
  • for basement storage during the long winter months.

There are a lot of varieties of cabbage today. They differ in terms of ripening, head density, sharpness of taste and other characteristics.

Super-early varieties form tight heads already at the beginning of the summer season, mid-season varieties become edible by mid-July, and late varieties have to wait almost until frost. Harvested at the end of October, these heads can easily be stored throughout the winter.

Ground landing

Proper planting determines the success of cabbage cultivation. It is necessary to plant young plants in the ground at a distance of at least 0.5 - 0.7 m from each other. Of course, you should not approach the bed with a ruler, but you must follow the indicated rule by eye.

Before planting, it is necessary to make holes into which, in addition to plants, many useful substances will go. This is humus, and fresh manure, and mineral fertilizers. Each gardener knows exactly what the soil in his garden needs, and in accordance with this, he will make a choice of top dressing, which makes getting nutrients more rational.

It is important that the plant should not be immersed in humus. This organic fertilizer only helps form the bottom layer of the hole in which the seedling will be placed.

Amount of applied fertilizer - about 1 plastic cup. You can add some wood ash, about the size of a matchbox. You can cover all this with one or two handfuls of earth.

At the next stage, the hole must be watered. Due to the fact that the culture is moisture-loving, each well should receive at least one liter of water.Watering from above the cabbage will not be enough. If seedlings are planted in hot weather, you can let the holes stand so that the manure begins to generate heat, which is so necessary for young plants.

When removing seedlings from a pot, the root system should be treated with growth stimulants, which are sold a lot - the gardener can only choose. With the use of these drugs, the survival rate of seedlings becomes much higher.

Separate plants from each other in the process of planting in the ground should be extremely careful. Having separated the seedlings, you should lightly press on a clod of earth to remove the plant from the pot. It is very important to keep the root system intact.

In the process of planting seedlings, you should pay attention to their condition. Sick, weak and small bushes must be removed. It is necessary to plant only the largest, strong seedlings. Before placing them in the hole, the roots can be treated with a growth stimulator.

Putting the plant in the hole and holding it with one hand, with the other you need to sprinkle the trunk to the cotyledon cabbage leaves. The earth needs to be leveled, slightly pressed. This is necessary so that the roots stand firmly and voids do not form in their place.

Following the cultivation after transplanting seedlings, you can more likely guarantee the he alth of plants and their resistance to the manifestation of diseases.

Causes of purple leaves

The totality of the harmonious action of various components within the seedling appears as a color scheme. Each plant has its own range. In such a very capricious culture, green color determines the action of 4 components:

  • nitrogen;
  • magnesium;
  • potassium;
  • phosphorus.

These elements underlie the vitamin balance of cabbage. This means that a change in the color of the leaves signals a change in this equilibrium. Zoologists believe that the appearance of a purple hue is a signal of a lack of phosphorus.

Thus, the main reasons why cabbage leaves turn blue are as follows:

  1. The first and most basic reason is an acute lack of phosphorus, nitrogen. In the event of such suspicions, the plants must be fed with complex compounds that contain these substances.
  2. Violation of growing conditions can cause the appearance of a purple hue on cabbage leaves. This is a moisture-loving plant, and in case of a lack of moisture during cultivation, it begins to experience stress. Low temperatures, stress caused by transplantation, and excessively high humidity will negatively affect the condition of the plant.
  3. Disease known as blackleg. It is impossible to cure a plant from it. Caused by a fungal pathogen, blackleg infects the roots of plants and leads to a blockage in the supply of food.

What to do

If the cabbage has turned purple, it is necessary to deal with the cause of this condition. For this you will need:

  • fertilizer with phosphorus content;
  • colloidal sulfur;
  • covering material (agrospan).

What to do if the cabbage has purple leaves is easy to guess. Since most often the lilac color of the leaves is due to the fact that they lack phosphorus, the solution to the problem lies in plant nutrition. At first, the change in shade occurs only in the veins, then in the central part of the leaf, at the last stage of the disorder, the edges of the leaves turn yellow, after which they die.

If the leaves turn purple, only one way out can be offered - fertilizing with phosphorus fertilizer. It can be either superphosphate or a product made independently on the basis of litter, manure and other similar components.

It is interesting that the normal development of plants can occur with a small amount of phosphorus, but its lack can quickly destroy the cabbage.

Violation of cultivation conditions negatively affects the condition of future heads of cabbage. If cabbage seedlings turn blue, methods such as adjusting the temperature in the room, balanced nutrition, regular watering can help. It is worth normalizing all the processes that are vital for cabbage heads, and cabbage leaves will restore their color.

Stress caused by moving seedlings can lead to a change in the color of the cabbage leaf, which becomes like a lilac. This is difficult to fix, but can be easily foreseen. If the transfer has already taken place, and all other growing conditions are in accordance with the requirements, then within a few weeks the state of the plant will return to normal.

Adult plant turns blue due to exposure to low temperatures. To avoid such complications, you can cover the cabbage beds with spandbond. The cold will not be terrible if the plants are protected.

If the black leg is the cause of the leaves turning blue, it is impossible to save the plant, as well as avoid dead leaves, but you can try to protect other heads of cabbage. To do this, you must first pull out the infected specimen, and treat the rest with a solution of colloidal sulfur.

This page in other languages: