All COB Users - Lettuce Grow Challenge!!

muleface

muleface

Well-Known Member
driving that at 1.4 ma that would get me 78500 lm over a 6 foot by 30 inch space. so about 12 sf. and about 585 watts.

will it work, have no idea?

we need a general rambling thread.
 
muleface

muleface

Well-Known Member
lol, awesome! get your friends and family to post content there. Perhaps someday, years from now, people will remember me.
 
eyderbuddy

eyderbuddy

Well-Known Member
PicklesRus said:
I have a par meter, three philips lights read around 80 umol m2 s
The four bridgelux strips I have at the same height measure 380... seriously wtf. That's horrible.

I mean, good for us, the bridgelux are cheap and output a lot of light, but wow the philps.. so poor.

I know of a guy that just bought 1 million dollars of philips to go over something like 6 or 60 hectares in his greenhouse. yikes

Back to the bridgelux, I'm thinking if 4 of them over a 2' x 4' space are reading over 350 umol, that's way too much for greens is it not? I'll find out I guess - what a good value $200CDN for that much light. I love it.
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350 umol is actually perfect if you do that for 18 hours, it's not that high really
 
OneHitDone

OneHitDone

Well-Known Member
muleface said:
:finger::fire::cry::wall:

if that gives you an idea on my lettuce...my first crop is just doing nothing. I am letting it ride, in about 2 weeks ill pull my second crop from my germination station. maybe it will be grown enough to do well.
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Edited with previous update image for more irritation lol
 
pinner420

pinner420

Well-Known Member
So everything is on point with it. It's now bigger and better than the t5 stuff and exhibiting all the natural color attributes genetically that it is supposed to. Rouge D'hiver. I'm more impressed with her growth and vigor on a daily basis. Funny what an xl bag of exhale c02 up wind of my single lettuce plant will do. I know the guy that built this home based bulb and wouldn't take much convincing to have him push the button on making me an agricultural version for our needs. He can do all the driver and cob gymnastics and probably do a killer product a guy could buy off the shelf with out having to build the damn thing.

http://www.bing.com/images/search?q=rouge+d'hiver+lettuce&view=detailv2&&id=94881D8886047ABCA8D504CE21539A282623D47E&selectedIndex=6&ccid=FAtXwkKT&simid=608021388781488082&thid=OIP.M140b57c24293a7ef754f584e22a96c92o0&ajaxhist=0
 
muleface

muleface

Well-Known Member
lettuce update.

These are germinating under 5 - 22w 6500k cheap'o led strips running 24 hours a day.

They are sitting on a bed of vermiculite. They get watered daily, most days plain water, some days a big glass from my nutrient tank.

I think they went in about 2 weeks ago.

I think I will give them another week or so in the nursery. Then i will move them to my nft channels. God willing they will do something.

Also, i think my nft channels still need more light. I may add another 6 strips (132 watts/15000 lm) to the canopy. This give me another 4.125 watts per sf. Its not alot, but its something
 

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OneHitDone

OneHitDone

Well-Known Member
Not gonna be long till salad time here
IMG_0888.jpeg
I pulled 2 lettuce plants from my nft and moved them to a dwc'ish system where I am testing an organic based nitrogen to see just how available it is to plants in solution.
Since others have really jumped in here with light testing and I am lagging on getting an led test budget together I will contribute to the lettuce project in other ways and continue to lay down a growth baseline
IMG_0889.jpeg
 
muleface

muleface

Well-Known Member
OneHitDone said:
Not gonna be long till salad time here
View attachment 3874298
I pulled 2 lettuce plants from my nft and moved them to a dwc'ish system where I am testing an organic based nitrogen to see just how available it is to plants in solution.
Since others have really jumped in here with light testing and I am lagging on getting an led test budget together I will contribute to the lettuce project in other ways and continue to lay down a growth baseline
View attachment 3874299
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i think a growth baseline would be great. Keep it detailed. How long did it take you get get to the one you are holding from seed?
 
frica

frica

Well-Known Member
I really hate the time it takes for pepper seeds to germinate.

Also tried nicking some with a nail clipper to see if that works.

Seeds may also be bad ones and I may have to get new ones.

Edit: And don't pick your nose after dealing with hot pepper seeds.
 
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muleface

muleface

Well-Known Member
so this is actually on topic!!

This was transplanted about a week or so ago. It is in coco. it is under....wait for it...a 3000k COB! it is doing the best of all my lettuce by far.

so do cobs do a great job with lettuce, or am i just a terrible lettuce farmer?

I think it actually gets the best combo of nutrients and light of my group. It is getting quite a bit more light then the other plants, and with the coco, it is rooting far better.
 

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muleface

muleface

Well-Known Member
so i picked a leaf off my plant in the coco under the mostly 3k some 4k COBs. The leafs were pretty thick. Maybe the thickest leaf of lettuce I've ever eaten. It was odd. It was good, but thick. Maybe a little bitter. Perhaps a light closer to the 6500k range would be better.

good bit of grown in under 24 hours too
 

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OrganicCanuck

OrganicCanuck

Well-Known Member
muleface said:
so i picked a leaf off my plant in the coco under the mostly 3k some 4k COBs. The leafs were pretty thick. Maybe the thickest leaf of lettuce I've ever eaten. It was odd. It was good, but thick. Maybe a little bitter. Perhaps a light closer to the 6500k range would be better.

good bit of grown in under 24 hours too
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lettuce prefers cold temps, and as far as taste goes, the warmer the temps the more bitter the lettuce. Also if grown to long contributes to the bitterness.
 
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