frequency and duration of drip irrigation
I've just installed a T-tape 8" on-center high-flow drip irrigation system in 4 of my vegetable beds (onions, potatoes, beans, asparagus) . I'm new to drip irrigation and am trying to figure out how frequently to water, and for how long. I've read that one of the benefits of drip irrigation is the ability to keep soil constantly moist instead of having it soak and dry out--that seems to argue in favor of brief and frequent irrigation. On the other hand, I'd like the bed to be somewhat uniformly moist, and while each emitter is supposed to wet a 12" circle it takes a while for the moisture to visibly spread that far. How to other drip irrigators figure out how often and how long to water?