Calcium sulfate is ground up into a fine powder and suspended in the fertilizer, it is not usable in its natural state besides as a ph adjuster and can only be asorbed by the plant only with organics. The microbes which live off the organics and die in chemical envirnments convert the sulfate into sulfide and it can then be absorbed into the plant via the roots. It is by this process plants get the majority of their sulfur nutrition which is one reason chemical beasters do not really smell. It will enhance the smell and the flavor of cannabis.

I am not really sure but I think I read glucose absorbs moisture somewhere if that is one of the main ingredients of hand cream. If that is what I am thinking of do not get it on the stem of foliage or it will draw the water out and kill the plant unless you scrape it off and some of the flesh with it. I have feed my plants corn starch in a random experiment but did not really see a difference. Most sugar is converted into starch and then used as food by the plants which I am sure you already know.