Would to much blue stress the plant? H
Can you link that page? I would bever get there on my own lol
I wish. But I was linked to it from a thread in RM3's website. I am not a member now and have deleted my bookmarks through his site as they don't work anymore.
Funny thing is. The research does not suggest doing more of any of it than stated above can help as Rm3 suggests. More is not always better.
There is tons of specific light info in Ed Rosenthal Growers Handbook as well. It suggests all the same info even 20 years ago. Easy search for the free PDF. Just no color glossy images like in the book.
I am sorry I don't have the file you need saved. I took this all very seriously but found better growing in a stable environment with great genetics will likely show much higher gains than just adding light bulbs. Although more light is more yield and potency to a point of you can manage it.
In the last 3 months while I researched all of this I changed nothing in my garden. I do strive to do better each time I do things and from planting a seed and harvesting a plant almost every week and caring for them individually (gallon nute solution custom mixed per plant each time) I am still seeing gains in yield and potency. Proper timed stress free transplanting up for a fully developed rootball seems the most important thing for plant vigor and health. Which ultimately determines the results.
Maybe when I can't learn to grow better anymore (which would never happen as we can always learn to do better) then a new light or additive with a tiny percentage of gain could be realized. The gains my garden realized in the last 90 days is more like 15% just in yield. And the higher potency is subjective but everybody noticed.
Just learn to grow better with what we already have first is my motto. Small improvements can mean huge gains. Focus on a proper stable environment.