how do you do the plastic bag method???.. for humidty at seed stage

So I can sprout my seeds above soil some said put a plastic bag over your cup for humidity....and would I need a liight.....can some one just explaine that whole scenerio for me thanks

Easy answer here for you look at the pic.

ITS JUST THE BOTTOM OF A SMALL ENOUGH CLEAR PLASTIC BOTTLE BOTTOM.


J

Check out this link.

http://www.marijuanagrowguide.net/Seedling_Stage.html


Peace

Low