predicting when there is no fertilizer left

is there a way to predict when the organic fertilizer runs out because it is supposed to when the plant buds to promote smooth easy burning bud. if this is the case, how are u supposed to make sure it stops getting nutes during the last few weeks of budding?

It's harder to flush (search for it) when they are planted in the ground, it still works however; but since you are organic I don't think it'll be a problem; I guarantee it'll burn smooth, every last bit!