I'm sure that will be fine for veg. start w/half strength and slowly increase. The numbers are a ratio of those three main ingredients. Once you reach the full strength that the package recommends, try going a little stronger if you see no nute burn. I've read very frequently that MJ can tollerate as much ferts as you give it, as long as increase it in small incriments. Good luck man. Up date us w/some pics some time.
Vin