The appearance of yellow spots on tomatoes around the stalk may be associated not only with a lack of potassium, as many gardeners usually believe. Uneven skin coloring and rough, tasteless pulp may be the result of improper feeding or lack of nutrition for tomatoes.
Some tomato varieties may react to excess nitrogen in the soil when potassium is supplied, which may result in coarse flesh and also uneven coloring of the fruit skin. Yellow “shoulders” on tomatoes may be characteristic of the variety, but they disappear in ripe fruits, while the flesh remains juicy.
It is recommended not only to add the necessary nutrients, but also to dose them correctly, observing the ratio between them. During the ripening of tomatoes, the need for potassium in fertilizers should be greater, and after planting seedlings in the ground, it is necessary to place greater emphasis on phosphorus.
Periodic watering with a solution of 1 tablespoon of citric acid and 1 bucket of water will help plants absorb the necessary nutrients. Do not overuse watering, excess moisture and poor ventilation of greenhouses can negatively affect the absorption of nutrients.
Poor soil aeration can also cause coarse pulp on tomatoes and yellowish spots. Dense planting can also negatively affect the quality of the fruit: with it, the plants will shade each other.
