any GROW product as part of a 3-part nutrient line is designed for veg growth and will provide adequate N just get the whole trio http://www.amazon.com/General-Hydroponics-Flora-FloraBloom-FloraMicro/dp/B0024NDVRA/ref=sr_1_7?ie=UTF8&qid=1423509032&sr=8-7&keywords=gh+grow also, this should be in a different section if you really need help
A good solution: The easiest nute system (and inexpensive, too) that I've found is Dyna Gro Foliage Pro in veg stage, and Dyna Gro Bloom for bud stage (plus a little CalMag every now and then). Growweedeasy.com recommends it for beginners since it produces great results, is simple and easy to use, and doesn't cost out the ass. I use a third of the ratio called for on the labels and only every other watering. I mix it with distilled water. Good shit!