No, in this method the idea is just to let them find their roots down to soil, but the seeds aren't covered with it.
The tray / container should however be kept in the dark / covered with a lid, brown paper etc. in order to encourage the stems to grow long and reach for light. When the cover is removed after a few days, the sprouts / shoots are long enough. They'll get their green color in a few hours in a sun, or in a few days the most.
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