Sprouting cabbage is better through seedlings. There are many reasons for this. First, the efficiency of efforts is increasing. Secondly, it is easier to calculate how many heads of cabbage will be able to collect over the summer.
Causes of withering of seedlings of cabbage
It is necessary, one after the other, to eliminate risk factors that may interfere with the achievement of the desired results and limit their impact. It is easier to do this when the seedlings are on the windowsill.
Incorrect air temperature.
Cabbage is not a heat-loving plant, although it loves sunlit territory, not shaded. There may be an erroneous idea of the optimal air temperature for germinating seeds at home. As a result, germination rates will be low. Shoots will grow slowly. One sheet after another begins to turn yellow, fall on the windowsill.
Seedlings sprout faster if indoors from + 16 ... +20 ° C.
At air temperatures above +24 ° C, the first negative signs appear: stretching and blocking.
Frost resistance is characteristic of this culture. It is able to grow at a temperature of +4 ° C. On the contrary, it does not tolerate heat. Therefore, immediately when sprouts appear, it is better to transfer the seedlings to the balcony.
Incorrect air humidity
Too dry air will interfere with the normal formation of sprouts. High humidity will reduce resistance to fungal infections, slow down the formation of roots. Need a middle ground.
Lack of nutrients in the soil and disease prevention
A prerequisite for the successful germination of seedlings of cabbage is the use of soil mixed with sand. Need turf land and black soil. Mineral mixtures are used as fertilizer. You should start feeding it as soon as a 5-6 true leaf appears on the stem.
In the soil there should be no pathogens or residual products of their vital functions.
Only in this case shoots will appear, each sprout will survive, turn into a magnificent head of cabbage.
The benefits of ash
It is better to use purchased soil for vegetables and add ash there (one tablespoon per 1 kg of soil). It is a source of nutrients and a disinfectant at the same time.
Processing with a weak solution of manganese will also be useful.
Potassium permanganate
Manganese is needed for cabbage for growth, it is absorbed by the root system. In addition, it will eliminate bacteria that may be present on seeds, in sand or land, come with water during irrigation.
Growth Biostimulants
Growth stimulants, Gibberellin and analogues, increase the degree of germination, activates growth energy. They are safe for seedlings and human health, animals. The nutrients contained in the seeds, bestowed by nature, begin to be used immediately. Phytohormones become the catalyst for the first chemical reactions.
Improper care
Seedlings of any cabbage can wilt due to improper care.
White and red cabbage, early and late variety, needs moderate watering at the time of growing green mass. Later, the intensity will need to be increased.
But seedlings need a little moisture. Drying of the soil mixture in pots should also be avoided.
Light seedlings need a lot. In this case, direct sunlight will harm. It is recommended to use bio lamps if daylight hours are short. Be sure to shade the windows with curtains or remove seedlings for lunch from the windowsill.
By turning on the bio lamps for several hours in the evening, you can soon see the relevance of the extra care.
Leaves at seedlings will not fall one after another. Green mass will form faster. Actual supplementation when growing seedlings of broccoli and Chinese cabbage, bak-choi, any other variety.
Common diseases
Fusarium wilting can cause seedlings to fall, this disease is a very common infection. Seed treatment with fungicides will protect against spores of the dangerous fungus fusarium, the causative agent of fusarium. Disputes easily affect many garden crops.
Verticillus wilt is also considered a common disease. It is most dangerous for the most part for young shoots. Symptoms are similar to signs of black rot. A yellow border appears on the foliage. 
Source: seminis.com.au
Then its color changes. She's getting brown. A strip also appears on the main stem at the base. Most often, they suffer from cauliflower and Beijing. Mushroom spores can come in the soil for a long time.
A solution of potassium permanganate or ash, treatment with a fungicide is a necessary measure to protect the plant from the first days of life.
The struggle may continue when the time comes to plant seedlings in the natural environment. The soil in the garden before starting planting is also treated with vitriol or other means to prevent infection with fungal spores.
Not only these diseases are a threat.
When the seedlings of cabbage wither, one seedling after another, one should suspect something was wrong, take a closer look. Signs, a description of the main symptoms of the keel, black leg, and timely treatment will help make the season a success.
The keel is manifested in the rapid withering of the aerial part. Having pulled out the sprout, one can notice the deformation of the root system, growths.
The black leg is easily recognized by the rotting stalk, the color change at the base. The use of fungicides for their treatment is topical.
Experience and skill in growing cabbage seedlings
At home, beginning gardeners often do not manage to grow seedlings. Over time, errors are discovered that were previously accidentally made. Appears skill, skill. Nature reveals more and more secrets. A method is being developed to guarantee a result.
It may at first interfere with gathering a large crop. A window frame, a draft or a cup of water set in the airing mode, which, out of habit, is constantly left nearby.
Some sprouts can die due to the use of landing containers without drainage holes at the bottom or due to uneven watering.
If you immediately respond to negative symptoms, still many seedlings of cabbage, the strongest, will grow. It will be clear what to do next, what part of the beds should be additionally sown. Planting of young, strong sprouts will be a truly important, memorable event.
