Poor seed germination is often the result of planting in cold soil. Place pre-sprouting seeds between layers of moist paper towels. Keep moist and in a dark place. These “Pre-sprouted seeds” may become successfully established when dormant seeds fail. There is an article on ideal germination temperatures to achieve more success starting your garden seeds growing!
Pre-sprouted seeds are fragile to handle. A planting gel can be made by suspending pre-sprouted seeds in a mixture of 1 tablespoon of cornstarch heated to a boiling 1 cup of water. When the mixture cools, put it in a plastic bag, add pre-sprouted seeds, and stir gently to distribute seeds evenly. Then cut a small hole in the bottom of the bag and squeeze the gel out along the planting furrow.
Benefit of Pre-Sprouting Seeds
You have solved the problem of poor germination as well as plant spacing.