How do i boost my plants?

I have 5 week and a half old plants, and i was wandering if i could have any information on how to boost there growth, and to boost there potency for later.

as there only 1 & 1/2 weeks & just sprouted you may wanta use some root juice ie; rhizotonic ,foliar feed(mist 2 or 3 times daily) & a weak feed every 2nd or 3rd feed will stimulate your roots.
as for pothency im curious too hear what folks say
personally my way of thinking is proper feed at right times ,not too much & not too little(yeh stating the obvious),its getting the balance right for your own enviroment in your growroom...............
thats my 2 cents ,happy growing man.........