About two weeks ago, my fan leaves started turning yellow. Not from the tips exactly just yellowing in general. I hoped I just hadn't been feeding enough N so I gave them a nice big dose about a week ago. The buds are still a nice gark green but the further you get away from them the more yellow...
So my main question is will there be problems with the 600 hps. I'm pretty sure I can sufficiently vent the heat, its only like 5 bucks a month more, and I want to upgrade someday so I really have my heart set on the 600w. Is this way overkill or will I see benefits as well as problems.
Thanks everybody. I know this was confusing and as gobby say 'academic' but I don't think anything is entirely non useful. Your right this will not really effect my grow but things like this help you make analogies and who knows what crazy grow tech will come in the future.
I still don't understand as well as I would like. Tym, your answer was still very helpful, thanks. I think making an equation for this would require some nasty calculus but I looked at it pretty much like you did. The majority of the(lost/indirect) light would bounce less than 4 times.
This leads to my next question. It is impossible to answer but I want guesses. If I put my 400w hps at the top of my 2x4x7 Mylar grow tent and measured the lux at the bottom, (6 feet away say) what would be the loss compared to any other distance say 3,2, and 1 feet away respectively? I realize...
So the reason that you want to put lights as close as possible to your plants is that the light will spread out, and not because traveling through air reduces the energy contained in light. Is this correct?
In other words, the relationship between light intensity(lux) and distance would be the...
Has anyone actually placed a light meter say 3 feet from a hid in open space and then done the same thing in a 2x2(or any small) Mylar tent? Just curious
based on what you all know about the light plants use, would this even reveal anything?