When to plant tomato seedlings?

When to plant tomato seedlings? This question arises every spring among summer residents and gardeners. At the end of March or beginning of April we sow tomato seeds for seedlings; already in May the seedlings reach sufficient size.
First, tomato seedlings are planted under film, and only then transplanted into open ground. Seedlings are planted under the film in the middle or end of May. In different climatic zones, warming occurs at different times, so the time of planting seedlings must be correlated with the arrival of heat.
At the end of May, or better yet in June, seedlings should be planted in open ground. At this time, the frosts have already passed and the seedlings are not in danger. Seedlings should be planted when the flowers bloom in the first cluster. It must be remembered that air temperatures less than 15 degrees have a negative effect on growth and flowering. But when planting seedlings early, increased soil moisture and lower air temperatures have a beneficial effect on the development of the root system. It is important to cover the plants with film to create the optimal temperature.
Before planting, the soil must be treated and complex fertilizer applied; the seedlings also need to be treated with Bordeaux mixture and potassium permanganate to prevent diseases. For seedlings, prepare holes measuring 30 by 30 centimeters. The holes are half filled with humus, ash and superphosphate. Plant the seedlings so that the first leaf is above the soil.
When planting tomato seedlings is clear, it is important to do everything on time and create the best conditions for the seedlings.In this case, you will get an excellent harvest of tomatoes.