This set it and forget it product was innovated for the outdoor grower who needs a slow granular product for their outdoor grow. Your time is valuable so whether you have a small or commercial sized outdoor grow, rest in piece that you can maximize your yields without the backache.
NOTE: Top dress around the drip line (this means by definition if you watered a plant from a sprinkler and the water dripped off it would leave a distinctive drip ring or line around the plant). It is thought that the height and width above the ground is equivalent to below the ground. In saying this a 1 foot plant would have a substantially smaller drip ring than a 3 foot plant.