Unsuitable soil
Tomatoes grown from seed at home or in a greenhouse wither due to an incorrectly selected soil mixture.
Acidic and dense soil entails:
- yellowing;
- falling off;
- drying of seedlings at the rhizome.
In addition to unsuitable soil, the reason may lie in the presence of pathogenic microorganisms or harmful beetles in it. This happens in the absence of preliminary disinfection. The procedure is carried out with a weak solution of potassium permanganate or hot water 90 degrees, calcination of the earth or freezing.
Prevention of wilting
Preventive measures:
- Plant healthy, strong bushes.
- Seeds are disinfected with 1% potassium permanganate.
- The soil is pre-fertilized.
- Place a handful of dried nettles at the bottom of the hole.
- Keep a distance taking into account the tallness of the variety.
- Autumn green manure is planted - a combination of legumes and grain crops.
- The greenhouse is fumigated with sulfur for disinfection.
- The beds are shed with a 1% solution of potassium permanganate.
Source of the article: https://repka.online/ovoshhi/tomaty/vyirashhivanie/uvyadanie-verhushek.html
Unsuitable place for growing seedlings
Containers with seedlings should not be placed under a window; tomatoes do not like drafts. There should be no cracks in the windows, otherwise the cold wind will blow through them. Gaps should be sealed beforehand or after planting if the seedlings begin to wilt.
It is necessary to place the container at a distance of 10 cm from the window glass. You can place a folded newspaper between the window sill and the box.
Mistakes when feeding tomatoes
Sometimes seedlings wither and get sick due to a lack of nutrients in the soil. This often happens when the soil is prepared independently. Feeding is extremely important, especially in the early stages of tomato development. Purchased soil contains many useful substances, but tomatoes quickly use them up.
You can feed vegetables correctly, but keep them in a cold room, which will negate the results of fertilizers. Excess fertilizing (especially nitrogen) can also lead to tomatoes falling off. The root may turn yellow or die due to burns.
Additional reasons
In addition to the main ones, there are secondary factors that have a negative effect on young plants:
