2 Pounds Per Light

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pahudson

Member
Hey all,

I am currently using 1000 watt lights and I hear lots of talk about 2 pounds per light. I have been growing for quite some time and have never been able to get above .5 grams per watt. So I just wanted to see what some of you guys are doing that are achieving this number. I have read so many different opinions on how many plants per light and nutrients to use, its hard to know what is fact and what is fiction.

Right now I am going to put 16 plants under a 1000 watt hps, veged till its about 2 feet tall. I have topped some of them twice and others only once. They are in 3 gallon pots filled with promix bx and I will be using sensi bloom a and b this time round with advanced nutrients bloom boosters. Strain is California Orange. Temps in the room will be 75-80 during the day and 65-70 at night. Humidity will be kept around 60. No CO2 will be used just oscilating fans to move air around. Am I on the right track? What are some of you guys doing to get 2 pounds per light? Am I putting too many plants under a 1000 watt light or not enough? Any input would really be appreciated. I am not even expecting 2 pounds per light I would be happy at this point with 1.5.
 
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pahudson

Member
jesus of Cannabis said:
i think you have too many under one light.
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Ok how many would you put under a 1000 watt hps? I have seen Urban Grower and Remo puts 9 plants under a 1000 but I felt that it was a bit of a gamble to go that low. I used to put 25 under a 1000 but they just seem to crowd each other out. Any other opinions out there? Please be as specific as possible.
 
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pahudson

Member
jesus of Cannabis said:
http://www.google.com/search?hl=en&q=how+many+plants+for+a+1000+watt+HPS&sourceid=navclient-ff&rlz=1B3GGIC_enUS307US307&ie=UTF-8
and dont be afraid of the search feature here also.
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Hmmm seems you didn't read my original post. I am quite handy with google and am able to do google searches. However, anyone who uses the internet regularly knows that anyone can post whatever they want, even if they have never grown a single pound in their life. This same person will claim to know all there is about growing MJ. Hence the reason I created the post asking for specifics FROM THOSE WHO HAVE ACHIEVED 2 POUNDS PER LIGHT. I realize that many new growers come here and ask the same questions over and over and it gets annoying so I understand why you may be pointing me toward google, but I assure you I have many grows under my belt and am asking the question having done a fair bit of research. If you can give me specifics and we can get a conversation going regarding the topic that would be great.
 
phyzix

phyzix

Well-Known Member
Small things that might help in the future:

1. Go with a strain like Bid Bud or similar. You would be surprised how massive the buds get on certain quality strains.
2. Add some CO2
3. 60% humidity is kinda high in flowering, but if it hasn't given you problems no worries.
4. Individual plant count is a lot less important than your light wattage.

Seems like you know what's up though, just keep refining technique until you get to 1 gram per watt or better.

That's what I'm working on anyway :bigjoint:
 
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pahudson

Member
Jeffdogg said:
1:30 in he talks about 2+
http://www.youtube.com/user/urbangrower?feature=chclk#p/u/283/Jxp9TL-JqVI

And its 9 plants per m2
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I've seen that clip before and took note of each of the points. I'm skeptical about only 9 plants under a 1000 watt light but hey, hes the man! I would personally like to keep the plant numbers a little higher per light but I used to do 25 and found that they just crowded each other out. I'm gonna give 16 a shot and if that gets crowded out I'll reduce again.
 
Jeffdogg

Jeffdogg

Well-Known Member
pahudson said:
I've seen that clip before and took note of each of the points. I'm skeptical about only 9 plants under a 1000 watt light but hey, hes the man! I would personally like to keep the plant numbers a little higher per light but I used to do 25 and found that they just crowded each other out. I'm gonna give 16 a shot and if that gets crowded out I'll reduce again.
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Dont be skeptical, getting 2+ is very possible if you follow the steps and have the perfect environment. They also use beds of soil, not sure of the dimensions but in later episodes they talk about using beds and what not.
I know a lot of people will nay say Advanced Nutrients and Urbangrower but watch the episodes look at the buds and listen to the info its good stuff :D
 
vfwvn

vfwvn

Well-Known Member
The only thing is perhaps the veg. height of 24" is abit much, I like to run my 1000wtr distance between 21-24 inches up to deliver as much punch as possible, I veg until about 12" from seed usually takes 30 days in a 5x5 area with a ML. 1000w. Swith to the HPS and well you know the rest.. here's an early canopy pic. Things worked out very well.
IMG_1594.jpg
 
Mountainfarmer

Mountainfarmer

Well-Known Member
man, that seems like a lot of plants under one light. My buddy runs ten plants under (2) 1000 watt hps lights. He is averaging .75g/watt. 3 gallon pots, promix, 30 day veg, no co2. The strain is NYC diesel x g13 haze by Soma.
 
woodsmaneh!

woodsmaneh!

Well-Known Member
You can grow 50 small plants or a number of large plants, lets say 9 or 16, what you can't do is grow more than 4 feet of plant under a 1000w no matter what amount or size plants you use. After 4 feet you run out of effective light. So the real question is how long do you veg your beans to reach 4 feet when done and how many will fit. It also depends on genetics, Indica short fat = 9 to 20 under a 1000w, Sativa tall and thin = 12 to 25 per 1000w

Remember the 4 foot rule for 1000w. ( it's a little less as you need 12 to 18" between the light and plant.
 
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reefcouple

Well-Known Member
woodsmaneh! said:
You can grow 50 small plants or a number of large plants, lets say 9 or 16, what you can't do is grow more than 4 feet of plant under a 1000w no matter what amount or size plants you use. After 4 feet you run out of effective light. So the real question is how long do you veg your beans to reach 4 feet when done and how many will fit. It also depends on genetics, Indica short fat = 9 to 20 under a 1000w, Sativa tall and thin = 12 to 25 per 1000w

Remember the 4 foot rule for 1000w. ( it's a little less as you need 12 to 18" between the light and plant.
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Good post...
 
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boati

Member
I'm A little late on response. Like you I have been at it for awhile,unlike you I use a different strain and always get 2 lbs per 1000 w. I use hydroponics top feed in hydroton.I have foung co2 crucial for yields. My last yield was 2 lbs 11 oz from 1000 w hps.Get the story at www.growingweedindoors.info
 
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dlively11

Well-Known Member
I can yield from 2 lbs per light to 4 lbs per light depending on strain.

4 per SQ foot which is 64 under a 1000 watt HPS 4X4 tray. Switched at 6-8 inches tall end up 18-20 inches tall. I train them early to grow into single colas. Week 3 of bloom I remove all the large fan leaves. I use GH Maxibloom powder (super cheap and works better then Advanced and H&G for me) Along with Floralicious Plus, Silica blast, AN Big Bud, MOAB Snow Storm Ultra and Gravity. No CO2 but LOTS and LOTS of fresh incoming air. About 3X what is recommended for my space. Also I am ebb and Flo in 5 inch pots using Hydroton. Cheese, Big Bud, and Fruity Chronic (Chronic White Widow) are my highest yielders and I am able to get a 30 gram per plant average dried and cut. Other strains usually yield closer to 18-25. Lot easier to get higher yields with a full SOG grow IMO. Little to no veg time and if you can do high numbers gives you GREAT results. I will warn you though that if you do numbers that high you HAVE to remove leaves or you will be growing 90% leaf =) I'd like to add this is the best method I have found so far for me in 5 years of growing indoors. I have grown every other method pretty much and varied plant numbers a lot. Have done 4, 8, 12, 16, 32 and 64 plants per light and have used soil, soiless and now hydro. Used lots of other nutes as well.

]
 
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reefcouple

Well-Known Member
dlively11 said:
I can yield from 2 lbs per light to 4 lbs per light depending on strain.

4 per SQ foot which is 64 under a 1000 watt HPS 4X4 tray. Switched at 6-8 inches tall end up 18-20 inches tall. I train them early to grow into single colas. Week 3 of bloom I remove all the large fan leaves. I use GH Maxibloom powder (super cheap and works better then Advanced and H&G for me) Along with Floralicious Plus, Silica blast, AN Big Bud, MOAB Snow Storm Ultra and Gravity. No CO2 but LOTS and LOTS of fresh incoming air. About 3X what is recommended for my space. Also I am ebb and Flo in 5 inch pots using Hydroton. Cheese, Big Bud, and Fruity Chronic (Chronic White Widow) are my highest yielders and I am able to get a 30 gram per plant average dried and cut. Other strains usually yield closer to 18-25. Lot easier to get higher yields with a full SOG grow IMO. Little to no veg time and if you can do high numbers gives you GREAT results. I will warn you though that if you do numbers that high you HAVE to remove leaves or you will be growing 90% leaf =) I'd like to add this is the best method I have found so far for me in 5 years of growing indoors. I have grown every other method pretty much and varied plant numbers a lot. Have done 4, 8, 12, 16, 32 and 64 plants per light and have used soil, soiless and now hydro. Used lots of other nutes as well.

]
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Great great great post!! I will soon be doing the same thing (cola grow), my first run is in a week or two... i was going to leave all the fan leaves and start blooming the instant I have about 6" of root on my clones... Sound ok? I actually have a little spacing (10 plants on a 2x4 e&f table)...
 
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