m0useanswered grow question 2 years ago If you medium is really soil it should not need anything for the first 2-3 weeks, some soils are amended with nutrients and won't need anything till 1 month later.
Peat pellets have small amount of nutrients for baby plants.
What chow_13 said is also very true, dry amendments take time to break down and become available to plants and synthetic nutrients are instantly available. Over feeding is a real problem and using less is far better then using more.
I would give it a week and see how its looking before thinking about feeding it. this is all based on it is grown in soil vs soilless or a potting mix.
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Good Luck!