This is how I've been sowing carrots for years with good success.
Prepare the ground for the seed by raking lightly.
Make drills for the seed by pressing the edge of a board approx.1/4 of a inch deep.
With rows approx 8 to 10 inches apart.
This is the seed I use.
Sow plenty of seed and you can thin them out later.
Close in the drills and firm the soil as shown.
The next step is watering (I forgot to take a picture)Give the soil a good watering with a fine mist..but don't wash the seeds away.To get good germination keep the soil moist.Don't allow it to dry out.