Max Yield Equation

I believe I didn't get a good yeild no co2 the light was a bit far from plants also topped late didn't use a technique other then that maybe the strain oh and maybe plant were too short

The main unit for measurement for max efficiency should be grams/watt. Your constant is your wattage. Question is how many grams can you get out of that wattage for a grow cycle. The variables of course are the genetics, medium, nutrients and environment. From what I read and understand, if you are able to get 1g/watt, in a horizontal indoor garden, you are one in a very few. Some bigger growers I know are looking for "a pound per light" and they are referring to a 1000w w/ a large reflector under optimal conditions which is about 1/2g/watt.

Question I have is, can you grow 4x 8oz yeilding plants under 1x 1000w light? I mean an 8oz plant is a pretty big indoor plant. If you could, then you are at 2lbs (900g) right there.

measuring in just gram per watt can be very misleading, it dosent account for no veg or many weeks of veg. I like the old high times measuring of aiming for .5grm per watt per month. or else gram per KW used would be a much better way to measure a successful grower.

dankdope said:

measuring in just gram per watt can be very misleading, it dosent account for no veg or many weeks of veg. I like the old high times measuring of aiming for .5grm per watt per month. or else gram per KW used would be a much better way to measure a successful grower.

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Grams per KW is the same as grams per watt. Kilowatt is just 1000 watts.
Also, for this equation: "measuring of aiming for .5grm per watt per month"
You are still measuring total output per wattage (grams/watt) time frame is irrelevant in the sense of it will always take 60+ days for a plant to mature and that should be the measuring point.

You more or less said what I just stated.

I ment grams per kw used as in a 1000w used n flowering would use 12kw per day 720kw for the 60 days add into that any extra kws used during veg and dvide by yeild and it would be far more accurate then the 1grm per watt BS that people wank on about, they could be a crap grower and vegged for a year to achieve that but because they got 1grm per watt you would class them as a good grower.

also the .5gram per month thing would be a good measure for the perpetual growers out there

IF you have enough vertical space and enough lumens/watts I would prefer to go vertical. Perpetual grower here also. I veg under T5 for about 40 days then flower trees. I'd love to try sog but hate those plant #s. In a 5g smartpot they get about 5-6' tall. 4 plants under a 1k and .74gpw at 60%RH before jarring. Topping , cutting all the lower stuff a couple weeks before flower. Super Lemon Haze-Dyna-Gro. Day 51. Third grow and always thinking about min/max also.

Watts is all that matters for max yield with proper co2 nutrients lighting you can achieve over 1000 as seen and done by Nice Guy Seed companys in thereSea Of Green Article. You want small plants in a large space. Less waste more time more money more herb. Your growing the same large colas on smaller plants as long as the root space allows it to keep growing there is no problem. You'll never get 4 pounds off a 1000 watt if that's the pipe dream.

Firstly - I believe that grams/kilowatt hour is what is really important. The reason why SOG would be ideal without plant limits is because you skip the veg almost entirely. This time savings adds up to better quality because there is less time for pests etc. If you have a plant count restriction then the best two options are growing trees or scrogging massive bushes. However the additional time in veg is where the real cost is. This is why I highly recommend LEDs for those with plant count limits. You can spend half the wattage and get better results while also saving a ton on cooling. This savings adds up fast.

1000w HID vrs. ~600w LED will save you 40% plus a ton on cooling.