...be sure to separate them with your fingers as you sow.
I asked my DD9 if she wanted to help *scatter* vetch seeds where I intend to sow corn in two weeks since I prepped the bed already. She said sure, so I gave her a handful of seeds, then watched as she TOSSED the seeds up in the air in a juggler's toss, and the seeds went up, then down, in a clump, with hardly any deformity in the formation, and land enmasse on the ground....
Let me tell you, juggler's toss does NOT SCATTER seeds.
You could plainly see the difference between where I walked along, sprinkling the seeds by working them out of my closed hand vs. DD's toss.