During the season, carrots take all the nutrients they need from the soil.
As a result, the soil becomes poorer, diseases accumulate in it, and pests may also remain. Therefore, crops on one plot should be alternated.
If this is not done, then fruiting will become worse every year.
It is simply impossible to plant a popular root vegetable in the same place every year.
If you have grown carrots for one year, you can replant them in the same place only after two or three years, when the soil has recovered.
It is best to fill this "waiting time" with green manure, which perfectly restores the soil, loosens it and saturates it with useful elements. Some of these useful plants are even able to drive away pests.
Experienced gardeners recommend planting legumes after carrots. They also note that if you plant tomatoes after the vegetable, they will also please you with a harvest.
It is better to make beds for carrots in a place where radishes, garlic or onions were previously grown.