Here the seedlings have grown, the tomatoes have already released a couple of real leaves and have begun to grow out of their "nursery" ones. So it's time to think about how to dive tomatoes without harm to seedlings. The purpose of the pick is to transplant the strongest and most promising senses into more comfortable conditions and reject the weak and the sick.
When the plant only hatches and emerges, its root system is poorly developed and the seedling needs 10 times less space than adult seedlings. But as it develops, the plant needs to provide optimal conditions for the formation and development of both a full-fledged root system and a decent aboveground part.
Some features of picking a tomato
About what the pots should be for transplanting tomato seedlings, and what the soil should be, they talk quite often. I would like to note that the observance of the temperature regime during the pick may be somewhat important. A plant grown in a room or even on a balcony has a temperature corresponding to the ambient temperature (18-25 degrees). The temperature of human fingers is approximately 35 degrees. If you take a small plant with your bare hands, it experiences a temperature shock. The sensations do not matter if the plants can be compared with those that a person gets, who was suddenly splashed with a bucket of 45 degrees of water. Of course, scalding to blisters will not work, but it will be very unpleasant and you can recover for a long time. The same thing happens with the plant. Therefore, when deciding how to dive tomatoes, you should think about the comfort of seedlings. You need to take the plant with gloves, best in rag, and preferably for the leaves. They recover faster than the stem and its "edge".
And it is best not to touch the delicate plant with your hands at all, but take a seedling for a lump of root land. This method will also keep the roots intact. You can use a teaspoon or a knife for this.