Hi
Maize is planted in rows like any other plant with spacing of either 2 or 2.5 feet between rows.
Each row will have drip line with 30 cm spacing drip points.
This is enough for maize as the roots of maize spread over bigger area. It can draw water from upto at least 1 feet distance. For this you have to ensure that germination takes place, then less water is also fine till cob start appearing.
Check this link
agritech.tnau.ac.in/agriculture/ … maize.html
It has information on maize cultivation, fertilizer and drip as well.
Good luck.
Nikhil