this also:
Vitamin B1 Debunked
The truth is that although research and experimentation throughout the 20th century has revealed that various auxins combined with B1 may help to stimulate root growth, Vitamin B1 on its own does
not. This illustrates a classic case of correlation not equating to
causation. In fact, one experiment showed that just plain
water worked better for stimulating root growth than water combined with B1.
The reason that this myth perpetuated for so many years is that in those original experiments dating back to the 1930s, Vitamin B1
did help to stimulate plant growth in a controlled lab environment; however, these results failed to produce similar results in the real world. Lastly, it’s helpful to understand that under ideal conditions, healthy soil containing certain strains of bacteria and fungi
naturally produce Vitamin B1 without the need to supplement with “fortified” fertilizer supplements.
Moral of the story? Don’t be duped by the marketing hype, and skip the B1 fertilizers that claim to ““prevent transplant shock” and “stimulate new root growth”
and this:
Vitamin B-1, aka thiamine, does not reduce transplant shock or stimulate new root growth on plants outside the laboratory
Healthy plants will synthesize their own thiamine supply
Healthy soils contain beneficial microbes that synthesize thiamine as well
biotabs.nl
