Until recently we were irrigating the outside crops as usual with a combination of overhead sprinklers and spray tape for individual beds.
We rely on our spring fed water supply as we have no mains water available. With this prolonged drought, we're using more T tape for ground level irrigation of single lines of crop.
It is important to be sufficiently generous so the water reaches down to the roots, rather than frequently wetting the surface, which encourages shallow rooting.
The docks and dandelions are doing fine with their deep tap roots, as is the chicory in the green manures.