for me all the tips given above are complementary to rfertilizer, as they do not cover all plant needs, or are like in the case of the baby pill or strogen in women's urine just a hormone/hormone like supplement.
As for sugar, I still do not see the point of giving sugar to plants (even though I know it is a common praxis and many hobbyist put their hands in the fire for it!). Ray do you have other information than me regarding plants ability to absor sugar? what I remember from my plant physiology lectures was that they could not, but maybe I am just forgetting something as it looooong ago