I have the same problem... i can only go back once a week... I picked up some blood meal, alaskan fish fertilizer, and some slow released high nitrogen all organic fertilizer..
Im going to top ammend my plants with the slow released nitrogen fertilizer and the blood meal.. and mix in the fish ferts with the water, along with mollasses and bio root.... I only have a month left of veg, im trying to make the most of it!