Sometimes the beautiful poured fruits of tomatoes spoil the deep ring or radial "scars" - overgrown cracks. This does not affect the taste of the fruit, but it pretty spoils the mood of the gardener.
The appearance of cracks causes sharp fluctuations in humidity and temperature of the air and soil in the early period of the development of the bush. In the period from planting to the appearance of fruit ovaries, it is very important to ensure uniform humidity and temperature. If by the time of the appearance of ovaries and fruits the size of a walnut, the plants are not provided with sufficient uniform moisture, the leaves wilt and crumble, and the air humidity is below 50%, then there is a high probability that ripe fruits will crack. Provide uniform watering and ventilation of the greenhouse during the formation of the root and aerial parts of the bush: in sunny weather, water after 3-4 days, in cloudy weather - after 4-5 days. Match the irrigation frequency with the air humidity outside the greenhouse, in rainy weather the air humidity increases several times and reduces the irrigation frequency by 1-2 days. In hot weather, open the side wall of the greenhouse or create a draft by opening the doors on both sides. Maintain during this period a uniform air humidity of about 65-75%, optimal for tomatoes. At the time when the fruits begin to pour and sing, abundant and frequent watering of tomatoes is not needed, since the bush has a developed root system and provides itself with moisture from the depths of the soil. Water the tomatoes during this period after 5-7 days, only under the bush, but abundantly. In order not to waterlogging the soil under the plant, water it in 2-3 doses, waiting until the next portion is absorbed before giving the next. At the end of summer, conditions appear again that contribute to the cracking of the fruit. First of all, these are the differences between night and day temperatures. At night, due to a decrease in air temperature, evaporation also decreases, moisture accumulates in the fruits and they crack. In addition, during this period, gardeners usually pinch young shoots in order to stop the further development of the bush, but there are still many fruits left on the branches and they can crack, since with the removal of the top and leaves of the bush, its evaporating surface decreases, excess moisture accumulates in the fruits and causes cracks.
