Tomatoes turn black

Last year, we planted large varieties of tomatoes for the first time. As soon as the fruits began to ripen, blackness began to appear at the bottom of each tomato, they thought it was black rot, but still there was something different.
How to avoid this problem this year?

This is due to the lack of trace elements in the soil and fertilizers, most likely calcium. Or the second option: your soil is acidic, which also affects the formation of "rot".

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Watch the video: What is an heirloom tomato, anyway? (October 2021).