High Brix definitely works...but it just gives me this funny feeling. Its like their whole marketing scheme is centered around selling you "natural" products which serve to mask the operative "organic" chelated nutrients. They use the results of the chelated nutrients to boost the claims of organic growing. I don't know what the soil requirements are for high-brix, but I would assume if there are none that their products wouldn't work so well without the "chelation agent."
On a separate High Brix
site they explain high-brix refractory measurements as:
RE measurement #1: High-Brix doesn't seem to explain to its customers that the purpose of molasses is to feed microbes in the soil - not to boost carb levels in the plant. I get the impression that some users think that molasses in booting carb levels in their plants...which I don't even think is possible since plants take up only ionized minerals. Yet, I have seen lots of Hi-brix growers buying obscene amounts of molasses (as I side note I actually use their molasses). I can't find any explanation behind molasses on the site for their users. All I have found is a vague mention of "microbial stimulant." Though, not a Botanist, I'm fairly certain the only thing that would increase Carb levels in a plant would be greater levels of photosynthesis, which in turn is dictated by the size of the plant and available light. Greater carb build up doesn't necessarily mean anything. Its well known plants can store excess carbs when they go through stress or when there is just excess carb.
Measurement #2: I assume by dissolved they mean plant available/ionized. If all the minerals in the kits are intended to be chelated its pretty easy to claim your natural grow "has more minerals" in the plant. You are force feeding your plants minerals as you see fit, not as the plant would. Id like to know what exactly the minerals available are...high counts of only NPK for instance doesn't mean crap.
Measurement 3 I'm not a molecular biologist, but just doing a little reading I have found that what makes a chelating compound or "casing," so to speak, is the ability for that compound to exchange electrons with the metal it is chelating i.e. forming covalent bonds.
Source So, when taking high-brix tests are you partially just measuring the amount of chelated nutrients? How soon after feeding your plants are you taking tests? Around the time that you can get the highest measurement all those awesome covalent bonds after uptake?
It all just sort of sounds like a self fulfilling prophecy to me. Use chelated "organic" nutrients to artificially increase the presence of covalent bonds and boost plant growth, which will increase carb levels as the plant grows larger and captures more light. Then measure these things based on some flimsy proprietary metric. Then, finally, sell the user a bunch of other stuff that "boosts microbial life" to accompany these fertilizers so as to make it seem like they are participating in natural growing practices...but of course when you are feeding the plant chelated nutrients they are not relying on plant available minerals created by soil microbes. So why would you spend all that additional money on ensuring the presence of soil fauna when you aren't even going to utilize it?