Example: In late spring time, a row of small trees would need to be watered for 1 to 2 hours with a scheduled interval of every 2nd or 3rd day.
Micro Sprays and Jets:
Example: In the middle of summer, a flower bed & ground cover would need to be watered for 30 to 60 minutes with a scheduled interval of every day or 2nd day.
Ref 2011