SunWolf said:
How is adding a chemical based nitrogen supplement "superior" to building up an organic nitrogen rich soil? And who are you getting your "all accounts" information from, because it sounds pretty bogus to me.
As far as "missing out on a huge part of your veg stage", there are so many natural organic items that can be added as to boggle the mind, and they certainly don't have you "spending thousands of dollars".
Edit for typos.
A lot of ferts will deliver nitrogen in plant usable forms (commonly NO3 and NH4 ions), where as when sitting in the soil, nitrogen may be locked in proteins and NPN forms. That is the advantage of ferts. However if one does as I stated earlier, and puts the nitrogenous material in right after harvest and allows mother earth and her army of microbes to do their thing, come springtime there should be a hefty amount of usable nitrogen in the soil.
Compost can be complicated, if you make it that way. My tips for compost would be adding some humate, wood chips, bone meal, fish meal, manure, and anything like banana peels, apple cores and left over food. Those alone, in healthy amounts will give a great range of nutrients covering macro and micro nutrient needs.
My last tip would be to send in a sample to a soil lab such as where I work at and have them test for all nutrients so you can get an idea of what is there and what isn't. Then one more test before flowering to see if there are still healthy levels of nutrients. If by then a lot of the nutrients have been used, supplementing may be necessary.