normally if you put your plants into BIG pots (soil growth) you would not need to feed them anything during vegetation.....however it is wise to give them 1/4-1/2 strength of ferts after the 3rd week of vegetation.....the plant will tell you when it needs to be fed....normally it shows N-defficiency by yellowing the first set of leaves that are at the bottom....then you know it's time to fert!!!!!!
Take a look at your plants closely and carefully....they will show you what they need!!!!


NGOS