Why does the seedling turn yellow?

Tomatoes are a favorite plant of our housewives. They put their whole soul into them and take care of young seedlings as well as children. And the housewives are very worried when their seedlings begin to ache and wither. Why does the tomato turn yellow and wilt and what to do with it - read below.

A bit of science

All plants contain a substance called chlorophyll, which is an important component. Thanks to chlorophyll, the connection between the sun, the environment and the plant itself is maintained. Chlorophyll with the help of sunlight filters the necessary organic substances from water and air. If this process does not occur, you can hear about such a disease as chlorosis, as a result of which yellow leaves of tomato seedlings.

Causes of yellowing of seedlings

In this paragraph, let us consider the most common causes of yellowing, for the identification of which it is necessary to carefully inspect their seedlings.

1. If the tomato seedlings turn yellow, starting from the lowest leaves, and thus bright veins of blue or red colors are observed, then one can assume a lack of nitrogen, which is one of the most important elements for tomatoes. In this case, too, there is a phenomenon such as small leaves. In this case, liquid nitrogen fertilizers will help, which will correct the situation as soon as possible.
2. Another popular cause of yellowing can be a lack of potassium, which you will have to compete with fertilizers.
3. This reason is also due to a lack of nutrients, which includes zinc. Its shortage is manifested not only by yellow leaves, but also by speckles, and also by turning up the sheets. Fertilizers will come to the rescue again.
4. If the yellow color of the leaves gradually turns into yellow-white, then it is necessary to think about the lack of iron. Fortunately, such an ailment is literally a day, of course, with the condition that you correctly pick up the feeding.
5. Violation of the nutrition of the root system of tomatoes also very often leads to yellowing. Such violations occur, usually due to damage to the roots, which are very sensitive to physical effects, as well as temperature changes. Most often this happens when tomatoes are transplanted into the open ground. Do not worry, tomatoes after some time cope with chlorosis, caused by these factors, independently.
6. The banal reason, but it can provoke the yellowing of the whole seedling - a lack of soil in the pot. If this happened to your tomatoes, then try to move them as quickly as possible into a large container.
7. With improper tomato transplantation sometimes clots of roots are obtained, which also do not give a full development to seedlings, because through such jungles the flow of water and substances is very difficult.
8. Poor illumination is another reason for the yellowing of the leaves. Try your pets to extend the light day with backlighting for about 4-6 hours.

All described reasons refer to diseases that develop more than one day. To save seedlings in such cases is simple enough, and now you know how to do it. But what happened if the seedlings became yellow in one day and began to drift away? Let's talk and about it.

Sharp yellowing of seedlings

The yellowing of a healthy green seedlings yesterday can speak of the stress that tomatoes have when roots die off. Unfortunately, you will not be able to save such bushes. The only thing you can do is to insure yourself and protect your seedlings from this. For this, the bushes, in which you clearly notice the signs of any beginning disease, treat Epin, and then a good fertilizer, which contains the entire complex of minerals. Only make a solution to the weak - this is the main rule.