I know you used raised beds, but for spring carrots try raising a row 10-12” wide, and a few inches high & flat across the top.
Just lightly roughen up the surface, barely touching it with the tines of a garden rake; then use a salt shaker to sprinkle the seeds and lightly smoothen the surface with your hand; then cover with a thin (1/8” or less) layer of grass clippings. Keep damp.
The seeds should be deep enough just by falling into the spaces between the soil particles then being covered by the grass.
Thanks for the tips. I’ll try that next spring. I think what happened this year, is that they weren’t kept damp long enough. The bed I used was completely Mel’s mix with some fresh compost added.
I’ll be planting some rye or clover to the bed this fall, and step up the compost content when I prep the bed for next year.