Wetdog said:
Still, no *specific* nutrient, just different blends if you will of what already exists.
You're trying to argue against a point that no one is making.
Absolutely NO ONE is saying that there's some element that's exclusively used by marijuana. (Nitrogen, Phosphorus, etc are all elements. The elements used by plants as building blocks are collectively called nutrients, or macro/micro nutrients.)
Furthermore a balanced diet of those elements is collectively called a "base nutrient". Note the singular.
Thus when ANYONE refers to a "marijuana-specific nutrient" they're talking about a base nutrient (or additive) that is specifically formulated to meet the particular needs of marijuana.
Trying to argue that there's "no mj-specific nutrient" because there isn't a unique element exclusively utilized by MJ is deliberately obtuse and a rather poorly constructed straw man.
Cat and dog food are generally made from exactly the same ingredients, but by varying the proportions of those ingredients you get one or the other. And anyone who actually cares about their pets' health knows that cat food isn't good for dogs and vice versa. A dog on a steady diet of cat food won't die, but it won't be nearly as healthy as a dog that eats dog food (and may develop kidney or liver damage if it goes on too long). Cats eating nothing but dog food will degenerate much faster.
For those of you more familiar with the particular differences of cat and dog food I realize I'm over-generalizing a bit here but the point isn't to get into a big discussion of cat diet versus dog diet, but rather to point out that the important thing isn't whether or not a magical MJ-only nutrient (solitary ingredient) exists. It's not a question of a single ingredient making it MJ-specific, it's a matter of the particular ratios of those ingredients.
And yes, cats and dogs are far less alike than any two plants (one being an obligate carnivore and the other being an omnivore).
There absolutely are MJ-specific nutrients, in exactly the same way that there are orchid nutes, tomato nutes, or whatever else like has already been pointed out. Same as there are mens and womens multivitamins. Both usually have the same vitamins, just in slightly different proportions according to what is going to be needed.