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I am not sure, if I understand correctly...

This is the harvest.
I did plant them in the soil. 4-5 months ago, that is.

edit:
nvm I think I understand.
With no-till, you would drill small holes to plant into.
Or cover them with a lot of mulch.

Okay, I get it now, I thought it's a pattern where you completely leave them in open space.

I even have a special, old tool for it:

With these potatos, you have to cover the lower part of the plant at some point, somehow.
If the sulight touches these potatos, they turn green and they become inedible, even toxic.

No-till relies on heavy mulching.
I cover them in dams.

like so:

image.png