I’ve gone fully no dig this year, I just laid the potatoes on the ground & covered them over with a lot of w3ll rotted manure. I don’t normally water the potatoes but in these conditions I’ve had to, not an overly fantastic crop to date(only first earlies up so far-planted 22nd April) but that is to be expected in this heat. Hopefully as the years go on & the worms & micro organisms & fungi do there stuff it will get better. I of the beds they are on was cardboarded & lots of manure on top with squashes planted through membrane last year.