Here in Norfollk (as in many other area's) some specialist potato growers rent land for a season on which to grow potatoes. Most try to get hold of fields where irrigation is available but if the land and location are good enough they will sometimes take the risk of having no water nearby in the hope that the summer weather is wet enough to provide for a profitable crop.
Needless to say that latter policy has come a bit unstuck this year and unirrigated spuds are suffering. And according to our agronomist at least one grower in east Norfolk has become so concerned about the state of one of his 30 acre rented potato fields that he has been carting water to it in tanker lorries and watering the crop that way.
Apparently he's taken dozens of loads and has been doing it for several days at huge expense that I hesitate to quote because it might be exaggerated. I hope for his sake that he saves his crop. Because he's saddled himself with horrendous outgoings that will have to be paid whether or not he gets an economic yield. But I suppose that's the kind of risk you have to take in the dryest summer for a hundred years.