I hope that your further experiments with putting different plants in one bed will be successful. I have followed this on many permaculturist videos and there are quite unanimous statements about it. The best way to check general statements is to try them out for yourself. Unfortunately, I don't have the opportunity to do this myself and I am happy when I see people with a piece of land discovering this for themselves.
HaHa, thanks for the photo, really trippy :D
My memory is leaving me as far as my parents' potato field is concerned. I only know that my childhood garden was full of vegetable beds, fruit trees and berry bushes, and that my parents regularly spread an intense scent throughout the house when, for example, they put the freshly harvested cucumbers into preserving jars. The scent of dill and other fresh herbs awakens warm feelings.
One thing I know for sure that works is that you should not expose the topsoil to direct sunlight and that covering the soil not only saves water but also prevents the soil from sunburn. When I first heard it said that soil can get sunburnt, I was surprised, but immediately thought, "Of course, that makes sense!"
Greetings to you.
Of course, that makes sense! :D ......thank you and greetings in turn 🙏