Probably once. Mindful of the blooms and how much new growth. Want to get any new growth specifically. With row crops, we would advise 10-30% bloom, and then if it persists, with like says green beans, strawberries, etc. that you should apply as needed keeping up with the blooms. For most of you guys, the economics are different. You aren't running a tractor that costs x as soon as you send it out, and need to be economical. We also advise to use the water they would normally use for good coverage.
In your case, try and hit any new blooms, or open cuts. If you water the girls weekly, then add weekly. etc.