nutrients for vegetation stages

im usingcanna terra vega npk 3 1 4 is this allright plants are about 4 weeks old cvould you tell me how often do i feed them cheers growing in soil

I have not been useing this site very often but I thought I would throw out a question for you all. Carbon dioxside makes plants grow faster and I was woundering if anyone has tryed dry ice inside their grow room or greenhouse. I have head the yeast and suger, the club soda and selzer, and the units that buren natral gas but other than keeping the temp. up I cann't see why dry ice wouldn't work.
Nakor 2