In this row you will be planting directly into the ground the seeds for 360 beets, 360 carrots, 360 parsnips, 360 salsify. I know that sounds huge but it is only one row. This translates into planting 9 seeds in each square. That will use up 2.5 of your 4X4 grid moves for each thing. According to the book, you can put 16 seeds per square for carrots if you want to, but it's easier if everything is the same.
RESIST THE URGE to plant more than one seed per spot. Overcrowding diminishes your harvest. I know - tedious - but you only have to do it once.