Can be performed in the spring or fall. A slice seeder is a walk behind machine comprised of several rows of rotating blades. These blades cut small slits or furrows in the soil. Grass seed is then dropped from the machines hopper down into these grooves and covered with soil. This is similar to the way corn is planted in a field. Slice seeding is often utilized when there is more than 50% turf loss in the area to be repaired. A starter fertilizer is often incorporated with this service for quicker growth.