A test for potatoes? Yes, I used Google Translate. Your post worked, but please be aware that we'll try to help with non-English posts but most people on this forum speak/read/type English.
You have to be careful with taters. If theym green, theym poisonous. Keep the light off on em or they turns green. Earth em over if theym stickin out the ground, to keep the sun off on em, or if theym picked, keep em in the dark.