The farm command seems to make the player farm anything that is farmable in a certain radius. It would be great if it could just farm in the areas defined by #sel 1 and#sel 2, or, less ideally. farm only in a certain radius from the issuance of the command. I find my character farming endlessly, including in farms that I want them to ignore. Even just farming a certain veggie would help, like #farm carrots

I'm trying to do the same but with watermelon seeds but it gives me an error, what do I do?

how i disable the command "sel"?

can you mabe make a command to auto farm wheat in a sel area for me?

i need help to get it to farm in a sel area

To farm inside the selection you can use #sel replace <crop> air and #sel replace air <crop> (just make sure there is no air where it can't plant).
To farm only in a certain radius from the issuance of the command, just use #farm <radius>.
Farming only a certain crop has already been suggested in #2315

The radius commands works. However, the #sel replace air does not. it says error at argument 3, Expected ForBlockOptional Meta

Because you forgot to put in the crop. It's #sel replace <blocks being replaced...> <replacement> so what you want is #sel replace <crop> air

#sel replace potato air

This is exactly what I typed. it gives me the error

I checked it and the block id for potatoes is minecraft:potatoes while the item is minecraft:potato.
The same goes for carrots and beetroots, wheat is the same for both.