Why do the leaves turn yellow in seedlings? How to deal with this?

Tomatoes can not be attributed to too finicky and demanding plants, which is why many gardeners from year to year grow seedlings of tomatoes. Not everyone has the necessary conditions and greenhouses, but in this case, and the usual glazed loggia or window sill on the sunny side, where you can place boxes with the earth. Sowing seeds, caring for the emerging small sprouts, fertilizing fertilizers, picking - this is not all the worries that "fall on the head" to summer residents. It is good, if the plant will thank a good harvest, but what to do in case of appearance of signs of the disease?

Many truck farmers do not understand why the tomatoes turn yellow in leaves , because everything is done according to the rules, the plants are good, healthy. And then, for no apparent reason, their appearance deteriorates. It should be noted that this is a fairly common phenomenon and there are a lot of reasons for its appearance. So all the same, why turn yellow leaves of tomato seedlings and what to do about it? First of all, it is necessary to check the moisture content of the land, strongly overmoistened soil adversely affects the development of plants.

If the leaf color changes, and not the streaks, then the reason why the leaves turn yellow at seedlings tomato, it is obvious - they do not have enough nitrogen, so you need to carry out additional fertilizing. If the lower leaves die, then you should not worry. Sometimes seedling in a pot grows well, and its root system is a continuous tangled tangle. It is much harder to survive after the transplant, so until the plant adapts, the leaves will turn yellow.

Do not lose sight of the quality of seeds. If they were originally infected with a fungus, then, most likely, this is the answer to the question of why the leaves turn yellow in tomato seedlings. The infected can be land, tools, which are used in its processing. Fungi are dangerous because in a short time they can destroy a huge number of plants, so you need to monitor the latest and timely remove sick tomatoes. If you use your own seeds, they must be soaked in a weak solution of potassium permanganate and several times washed in clean water.

In some cases, the disease initially affects the roots, and then passes to the stem, disrupting the vascular system. The plant is weakened, because water and nutrients do not flow to it. Here is the answer to the question of why the leaves turn yellow in tomato seedlings. With such a problem, you can and should fight, the main thing is to recognize the disease in the first stages.

Seed boxes need to be disinfected so that there are no fungi left. It is better to take the earth at the edge of the forest or in the meadows, it is desirable to prepare new soil in greenhouses annually. All affected shrubs need to be collected so that no part of them remains and is destroyed outside the garden or vegetable garden, because the fungus is well tolerated by the wind. It is very important to understand in time why the leaves turn yellow at a tomato, then there will be time to fight the disease. It is better to prepare a bed in a new place where there is no infection. Soil should be dug before planting and add coarse-grained sand. Such simple tips will help to keep the tomatoes and harvest a good harvest.