There are several reasons why it is recommended to grow onions and carrots in the same bed.
Such a neighborhood has a positive effect on these vegetables. The harvest is excellent, there is protection from pests and at the same time the plants themselves get along well with each other.
First of all, this is a good solution for summer residents who try to use every piece of land rationally.
The next nuance concerns pests.
There is a cross effect here: onion phytoncides repel the carrot fly, and carrot substances repel the onion fly.
These crops require approximately the same conditions.
The same level of humidity, amount of sunlight and the same fertilizers.
For example, it has been noted that spraying tobacco dust and watering with pepper (mustard) infusion has a beneficial effect on onions and carrots.
In July, the elastic carrot tops will support the onion feathers. The greens will not lie on the ground.