Fermented sugar water.....
As an aside, it's my understanding that the sugar molecule, in any form (sucrose, fructose, lactose, etc.) is too large to move across the root's epidermal gradient into the plant, unlike salts such as potassium chloride. Some folks say molasses feeds the soil's microbes. I've done experiments with molasses and found it much better suited for flapjacks.
They don't uptake much for carbohydrates, but they do secrete them.. Plants can dump up to 25% of the carbs they produce via photosynthesis to microbes..
Roots need carbs in the roots to process nitrogen into amino acids etc etc.. Basically all organic compounds are going to be built from CO2 through to simple carb to complex organic.. The more carbs to receive building blocks the better.. But they need to share those carbs too since the microbes produce their active nutrients.. The more carbs there are available in the soil, the less demand will be put on the roots as a carbohydrate source and the more it gets to keep for processing already available nutes.. If your soil is carb sufficient then carb loading won't help, but it won't hurt either..
honey wont hurt it has various b vitamins and trace elements. also plants use some b vits especially b-1 it helps with stress or trauma. b-1 is one of the ingredients in superthrive which most people love.
Bees collect nectar, which is mainly sucrose and 40-80% water. They process this using the enzyme invertase, and by evaporation into a product containing 18-20% water we know as honey:
Water 18%
Fructose 38%
Glucose 33%
Sucrose 1.5%
Maltose 7.2%
Higher sugars 1.5%
Minerals 0.2%
Total acid (as gluconic acid) 0.6% (pH 3.9)
Mock Honey. Not to be outdone by bees, we can also process granular sucrose to make a home-made 'honey'. Here is a mock-honey recipe (a form of invert sugar syrup), based on the above, using 4 units of granulated sugar to 1 unit of water:
2000g raw sugar (say 8 heaped cups). For a darker color substitute with soft brown sugar (1 cup)
5tbsp. malt extract (maltose)
500ml water (say 2 cups)
6g or 1tsp. acid (a mixture of various - tartaric, citric) or juice of 2 lemons. A pH of 3.6 is equivalent to 6g of citric acid/litre or 1tsp.
Boil water, add acid and sugar and simmer for 15 minutes. Cool. When cool add 1tbsp raw sugar (sucrose). This produces about 1 litre of mock-honey syrup. SG of honey is 1.5kg/l.
Here's a little bit on honey from homedistiller.org.. One advantage of molasses is the fact that it doesn't attract as much for bugs, and actually repells some.. Honey/Vinegar on the otherhand carry an adage..
Regarding the molasses, I'm thinking the robust format is blackstrap (probably 55-60% simple sugars), and the other is fancy (more simple sugars).. Blackstrap will carry more complex stuff, its the health nut type..
A great source for more complex stuff ontop of simple carbs is boiled yeast.. Or don't boil it, it won't hurt anything, boiling just busts them all open for instant availability to anything in the soil..