I normally plant my onions in 30" beds, spaced 2-4" inches apart in the beds, with about a foot walkway between the beds. I don't plant them in plastic and I overhead irrigate. I'm happy with the yield and the quality. But......I'd like to move entirely to drip irrigation this year. How do you lay out onion planting using drip tape? Rows? Beds? How far apart do you lay the tape? And while we're on the subject, I want to move my carrot and beets to drip irrigation also. Do you lay the tape before or after direct seeding? (I use an Earthway) Thanks!