I did read the test.
It is such a typical test as you often see in the cannabis scene: Far from scientific.
So it is hardly possible to demonstrate whether the better result is due to the nutes alone.
Perhaps there was more CO2 in the air in one grow. This is quite possible if tests take place in different seasons.
The same goes for humidity. I found nothing about that in the test.
He only tested it with Jack Herer. Perhaps the outcome would have been different if he had used a different strain. Each strain can have its own specific needs. Some like more or less N for example.
Even people who have used the same set-up, same strain and same nutrition brand for years do not have a consistent yield. It probably has to do with different CO2 levels, not optimal VPD, or some disease that was not visible, but perhaps still present below the surface. In a very light form that can affect the yield a bit.
So it is impossible to draw such conclusions about a nute brand with a few grows like the tester did.
Only when he does it with different strains under controlled equal conditions (VPD, CO2, PAR) can anything useful be said about it.
Another note: If he uses 3 x 1000 Watt's and his highest yield is just below 5 pounds... he is not the best grower anyway.
Or he has not dialed in his room yet, after all these years.
I am not saying that AN is not or cannot be the best nutes brand, but it is impossible to determine that from the linked test.
bigbudsmag.com
