If you don’t close the soil on the planted seed, it is very much likely that the seed will not germinate, and the final yield of your crop will be majorly affected. If your garden seeder does not have the ability to close the soil over the seed, it is better to do it manually. However, that is a lot of work and will mess with the efficiency of the seeding. Hence, it is better to invest in a garden seeding the closes the soil over the seed.