I don't know about your lights but I know you're not supposed to trim leaves unless they are dead especially while flowering.
Hello, lately I have realized that the distance you keep your 1000 watt at from the canopy makes a huge difference in yield. Fuck Cervantes for saying plants need only 10,000 lumens and to keep 1000 watt 3 feet from canopy. I air cool my hoods with two fans, this allows me to put a 1000 watt 2 inches from the reflector glass. Also, I have been experimenting with trimming fan leaves during flowering and have noticed an increased yield. My question is not if this is good or not (cuz I know it is) but around what time flowering do you think is the time to start doing this?
I don't believe his science. A bud spot not getting light slows it down and retards it, remove fan leave covering it. Just like keeping light 3 feet above plants
Leaves are where MOST of photosynthesis occurs in the plant. Cutting out leaves to get light to bud sites is counter productive. What if I asked you to run a marathon under the stipulation that I removed one of your lungs first?
The max lumens a plant will use is somewhere in the 10-13k Range IF you have nailed every other environmental factor (including co2). If you are reading cervantes book, I don't know if you have nailed all these factors yet, and doubt you have found a way to use the 140K lumens you get by having your plants touching a 1kw light source.
I'd recommend rethinking your approach and reading more scientific research, sure you can let your plants grow all the way to the light, but at what cost to the efficiency of the light? The dark shadows created by the leaves so close to the light don't allow the light to diffuse properly and provide the lumens it needs to to the rest of your plants foliage.
I'd recommend trying Cervantes' way for you. For me, 10,000 lumens = small buds and low yield
That being said, 1/2 - 1 ounce colas can easily be had at greater distances.. are those considered small buds?
Maybe for you, not for me. I tried this method for a year, ever since I switched to more light directly on less plants giving those precious tops intense light, ounce and a half colas suddenly appear. Longer veg, more light in veg, everything more light = BETTER
Cervantes logic stems from the inverse square rules that affect light emitted from a source. He doesn't make the law, he simply explains the reason behind it. There are variations - type of light, temperature of the lamp, intensity, ambient colours/reflectivity, above all its about using common sense to maximise the efficiency of your own lights and your own setups.
Cervantes knows his shit, and if you dismiss his words purely because you're having little success, I'd have a closer look at your own setup. If you're getting poor results from 1000w, something is seriously wrong with your setup. A light of that power close to your plants will do more damage than benefits offered. Good even coverage at the closest range that is deemable, is vastly more useful to the plant than a super focused spot light covering only part of the plant.
Trimming off fan leaves is just madness. If you want more penetration, tie them down or train them to spread, the fan leaves are the plants main source of energy, its basically a solar panel. If you're cutting them off, expect to cut into the plants potential. There are times to nip/trim the odd branch, but I'm against this widespread belief of trim this, trim that.
Again, people are making growing complicated, especially when they're trying too hard or steamrollering over tried and tested methods.
The best lights in the world will also yield shit results if the genetic potential of the seeds/origin plants aren't great to begin with. Lights aren't magic, they provide the energy for the plant to follow its genetic script. Shit script, shit results. Average lighting will net a larger yield with good genetics, than epic lighting will with shit genetics.
Clearly science knows more than me. FuCK Science!
Na mate, science is your friend and guarantees the best results. Find out what works best for you, and stick to it, every grower is facing different variables and so while some things are 'true', many things can be followed with 'it depends', lol