Why are tomato seedlings thin and pale and what to do?

Why are tomato seedlings thin and pale and what to do?

The quality of seedlings largely affects the yield of tomatoes. Before planting in the ground, it is necessary to assess the condition of the plants. Often seedlings grow thin, yellow. This appearance indicates the presence of problems with the planting material.

The reasons

There is an opinion that it is difficult to grow tomatoes from a seed on a window, and it is impossible to get a decent harvest, but this is a delusion. If you create suitable conditions for tomatoes, seedlings are of high quality. With a little work, and during the harvest season, you can brag to your neighbors about your work. This plant does not tolerate drought, but grows well with sufficient heat and light. The unhealthy appearance of tomato seedlings indicates a violation of the temperature regime, the absence of the necessary light or moisture.

Among the main reasons why the plant stretches up:

  • little sun;
  • densely planted;
  • excess or lack of nitrogen in the earth;
  • elevated air temperature;
  • sowing ahead of time;
  • non-compliance with the humidity regime;
  • lack of moisture.

    Tomatoes will always gravitate towards the light, so they will stretch on the window towards it if they are in short supply. Such plants always have a pale color of foliage. Experienced gardeners advise not to plant many seeds in one area, as the sprouts will try to stretch up. If possible, when the plants sprout and get stronger, they need to be seated, thereby giving more space for growth.

    If it is too hot at night, the tomatoes also stretch up, and if it is cool, they grow in width, the stems become stronger. Not only a lack, but also an excess of water in the soil badly affects the plant. Thin and pale tomato seedlings are a lack of attention to it from the gardener.

    What to feed?

    If the gardener follows the basic requirements, monitors the temperature, amount of light and humidity, but the foliage is still pale, then you should think about additional feeding. Nitrogen fertilizers are ideal for this. You can make your own nutrient solution at home.

    This will require:

    • 1 large spoon of urea;
    • 10 liters of water.

    Each bush will need about 100 g of this fertilizer. After processing for several days, the seedlings must be transferred to a cool room, where the air temperature is 8-10 degrees. Watering is not necessary. When the tomato is transformed, and its foliage darkens noticeably, you can return it to its original place or plant it in the ground.

    It also happens that the gardener overdoes it and an excess of fertilizer appears in the soil. In this case, the seedlings are also stretched, and to stop growth, you will need to add superphosphate. Its recipe is simple:

    • 10 liters of water;
    • 3 tablespoons of superphosphate.

    A glass of solution for one tomato will be enough. Plants are kept warm for a couple of days, where the average temperature reaches 26 degrees, and at night it is at least 22. Seedlings are also not watered. Top dressing should be done no more than once every 7-10 days. If there is not enough light on the window, then a lamp should be used, which should be located at a distance of 10 centimeters from the foliage.Some varieties differ in that they gain thickness in the stem only after transplanting into the ground, so there is no need to feed them. As a rule, these are tall tomatoes, they only need to be hardened.

    How to reduce the length of the sprout?

    The so-called stepchildren, that is, lateral stems, can be germinated in water and planted in the ground. They will give an excellent harvest, and without them, the load on the plant will decrease during the fruiting period. Between the fifth and sixth leaf, the stem can be cut and the upper part placed in a glass of water for further germination. At the place of the cut, additional processes are formed over time, they must all be removed and only the top two should be left. A tomato is planted in a greenhouse after 25 days. The two upper processes should be tied up separately. So that the plant does not experience a heavy load, 4 fruit brushes on each branch are enough.

    Seedlings are divided twenty days before they are transferred to the ground. By this time, it should reach a height of 25-35 cm. In a healthy plant, up to 12 leaves and several inflorescences are already formed on the stem. A few days before planting tomatoes in the ground, you need to cut off two leaves from the bottom. Stumps from their stems should remain at least 1 centimeter in size. Later, they themselves will disappear and will not harm the plant. This is how you can protect seedlings from certain diseases, improve the ventilation of the roots, and help it form high-quality brushes with flowers.

    If the air temperature drops when planting outside, the seedlings must be watered, since moist soil will provide the necessary heat exchange in the lower layer.By following the above requirements, you can avoid pulling the stems of tomatoes, but if this has already happened, there are several ways to shorten the plant.

    Long stems should be immersed to a great depth in the ground. It is not at all necessary to dig too large a hole, since the earth may still be poorly warmed up. In this case, the best option is to land on an incline.

    A groove up to 10 centimeters deep is formed, into which water is poured abundantly and wait until it is absorbed. Plants are laid out on it so that from the top of one tomato to another there is at least 50 centimeters. This distance is enough so that the seedlings can fully develop in the ground and receive enough light. The roots should be laid in the direction of the south, as the plant will reach for the sun.

    It happens that the cold lingers, and the seedlings on the window turn out to be very overgrown. In this case, it is cut in the manner indicated above. You can land in a double hole, where a container with a tomato is placed. First, a deeper one is used, then, when the plant takes root, the upper one is covered with soil.

    Timely measures taken will help restore the seedlings to a healthy appearance. It will be strong and give a good harvest. It is worth remembering that elongated sprouts adapt for a long time, get sick more often and produce fewer fruits.

    Prevention

    Unhealthy foliage color, too long stems - all this suggests that the gardener did not watch the plants. You can overdo it with fertilizers, so it’s worth looking for a middle ground in everything.

    The first thing to pay attention to:

    • light;
    • moisture;
    • amount of fertilizer.

    Nature has done a good job on the mechanism of plant growth, the violation of natural processes leads to a change in the quality of planting material.Using boxes for germinating seedlings, you should not be greedy and place too many seeds in a small space. In the future, it will be difficult for them to develop, the stems will go up to the sun. The fewer bushes and more space, the healthier the tomatoes.

    In close quarters, only stunted, thin seedlings can be grown. Twenty quality bushes will be able to produce the same yield as fifty weak ones, but they are easier to care for.

    It is important to monitor soil moisture so that the plant can get enough water for growth. At the same time, feeding should not be done too often, as this will only harm the tomatoes. Too much fertilizer causes the stem to grow too fast. Water the soil only when they see that it is dry. Gardeners note the special love of tomatoes for warmth, so they focus on the temperature regime for growing seedlings. If it is not observed, then the plants begin to stretch upward. It will help to lower the temperature to 4-5 degrees, when growth slows down and the root system is actively strengthened.

    Additional lighting must be provided, and the temperature in the greenhouse cannot drop below 15 degrees. It is not difficult to stimulate active growth if you raise the temperature to 25 degrees. As soon as the tomatoes reach the required size, the air should again be no more than 15 degrees. This method is called hardening. If everything is done correctly, by planting in the ground, the gardener will have small bushes with lush foliage of a healthy green color. You can combine temperature and lighting. If there is a lot of light, then the air should warm up in the range of 25-28 degrees, if there is little - up to 19 degrees.

    There are a few basic tips to help the budding gardener prevent stem thinning or uncontrolled plant growth:

    • do top dressing of tomatoes no more than ten days after making the last portion;
    • use only organic or mineral supplements;
    • the first fertilizer is applied to the ground ten days after the shoots have appeared, for this it is best to use nitrophoska;
    • the second dressing is applied after twelve days, for this they use ammonium nitrate or wood ash;
    • if active growth of seedlings is traced, the two lower leaves are removed, and the earth is poured onto the roots;
    • do not water too often, it is better to control the humidity of the air and install a humidifier or use a leaf sprayer;
    • plant seeds at a distance of at least 8 centimeters from each other, while the depth should be up to 2 centimeters;
    • plant 2-3 seeds in one hole;
    • fertile soil is used as soil for germinating seedlings, which it is desirable to disinfect before that;
    • if all the seeds have sprouted in one hole, then they are planted after the formation of two leaves.

      Sometimes it happens that prevention does not help solve the problem, then gardeners are recommended to use specially created tools:

      • "Stopprost";
      • "Athlete".

      They contain special nutrients, they help to restore the lack of trace elements in the soil in a short period of time. After their use, the growth of tomatoes noticeably slows down, and the stem grows thicker, the root system becomes more powerful.

      You will learn more about the proper cultivation of tomato seedlings in the following video.

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      The information is provided for reference purposes. Do not self-medicate. For health issues, always consult a specialist.

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