Brad

I am new to this but my wife got me the 3part box. I am growing in soil in a tent . Can I use the 3 part in soil if so had do I mix it and how do I apply the mix to plant. They are seedlings now. Not wanting to throw this away because I believe it is a great product just need some understanding of it all as a beginner. I grew 2 plants last year in soil in tent. Just used fish fertilizer and a few others it turned out great.