passive plant killer

[mugenbao]

delta9nxs, you have just demonstrated yet again why I keep coming back to IC, and this thread in particular. I love the info and links provided, and your explanations of what can at times be dry and very academic research makes it accessible to us all.

Thanks, man. You rock.

 

[Carl Carlson]

That's great post on photons and DLI.

Take notes folks.

Down with Watts Per Square Foot!

 

[DevilWeed]

That is some really cool data. Some of that took a while to really comprehend....and some of it I will likely never understand.

I made the switch to full vert in my current flower room (12'x6'). 3 bulbs down the middle, two of which are still bare. 1 is in a tube. May add a 4th. With temps the way they are right now (COLD!) there is no rush to tube them all. I have a variety of plants, all shapes and sizes jammed in there. As I move through my rounds, I'll be vegging vert and the room should clean up. Building another room will have to wait for a bit. Too much going on. I'm also going to try a couple PPK's. I'm betting I'll switch over to those real quick.

Question for you guys. My well water comes out at an EC of .09 (65ppm on 700 scale). I'm using RO water now but I keep debating just using straight up tap water. I don't have a current analysis but I can't see 65ppm making that much diff either way. What would you guys do?

 

[Carl Carlson]

Daily Light Integral Defined - By Erik Runkle

Measuring Daily Light Integral in a Greenhouse (.pdf)

The latter has this: Table 2. DLI Requirements for Various Greenhouse Crops

It's non-vegetable annuals and various perennials.

 

[jjfoo]

devil weed,

How do you water? I use RO in a PPK type system. I think I would get some mineral build up, from hard water.

My EC is .5 out of the tap. If I did drain to waste I would look into using tap water, but for my PPK I use RO due to my high tap water EC.

 

[jjfoo]

That study on sativas really gives me reason to think there is a lot we can do to improve things. From what I read, I am really thinking I should invest in a CO2 meter and get my tank running. I would have to use less AC with CO2. I've avoided running CO2 due to not wanting to have to hall tanks around and seal my room. Maybe I should reconsider.

I'm wondering where the LED technology will go in the next couple years. They have the potential to deliver the right frequencies.

 

[delta9nxs]

For what a person could gain, those meters aren't priced out of the ballgame. Need to read up on all this.
Thanks for pointing this out and PPK... keeping the moms happy.

CB

hi, carboy! thank you! i'm looking at meters right now.

 

[delta9nxs]

delta9nxs, you have just demonstrated yet again why I keep coming back to IC, and this thread in particular. I love the info and links provided, and your explanations of what can at times be dry and very academic research makes it accessible to us all.

Thanks, man. You rock.

thanks!

 

[delta9nxs]

That is some really cool data. Some of that took a while to really comprehend....and some of it I will likely never understand.

I made the switch to full vert in my current flower room (12'x6'). 3 bulbs down the middle, two of which are still bare. 1 is in a tube. May add a 4th. With temps the way they are right now (COLD!) there is no rush to tube them all. I have a variety of plants, all shapes and sizes jammed in there. As I move through my rounds, I'll be vegging vert and the room should clean up. Building another room will have to wait for a bit. Too much going on. I'm also going to try a couple PPK's. I'm betting I'll switch over to those real quick.

Question for you guys. My well water comes out at an EC of .09 (65ppm on 700 scale). I'm using RO water now but I keep debating just using straight up tap water. I don't have a current analysis but I can't see 65ppm making that much diff either way. What would you guys do?

hi, once you build a linked, level controlled sub feed and a pulse system on top you will never go back.

"once you go ppk you don't ever go away"

65 ppm at .7 is 46.43 at .5, which is what my meter uses. i let my ro filter changes go until about 50 ppm and i'm at 31 ppm right now so if i were you i would just go ahead and use that tap water with the ro formula until you see any signs of trouble.

compensate for the tap reading when you mix.

 

[delta9nxs]

Daily Light Integral Defined - By Erik Runkle

Measuring Daily Light Integral in a Greenhouse (.pdf)

The latter has this: Table 2. DLI Requirements for Various Greenhouse Crops

It's non-vegetable annuals and various perennials.

hi, carl, thanks again and thanks for those links. i'm going to start playing with this soon.

there is a lot to determine once you have the meters or sensors.

first the distance that each bulb has to be to get 1500 umols, with and without glass.

then depth of the effective field. by this i mean the penetration. if it is 1500 umols on the front face (vertical) what is it at 1 or 2 ft? to get 1500 umols at the rear what does it need to be in front?

compromises will have to be made.

this might change the way you shape your plants.

i think we are in for some big surprises. it's going to be interesting for sure.

 

[delta9nxs]

That study on sativas really gives me reason to think there is a lot we can do to improve things. From what I read, I am really thinking I should invest in a CO2 meter and get my tank running. I would have to use less AC with CO2. I've avoided running CO2 due to not wanting to have to hall tanks around and seal my room. Maybe I should reconsider.

I'm wondering where the LED technology will go in the next couple years. They have the potential to deliver the right frequencies.

hi, jj, the difference between 350 ppm co2 (ambient) and 750 ppm is not much and would be relatively inexpensive to maintain. it's nice to know the number as some of the gurus want you to run much higher than that. when i move i'll be able to set up co2.

i'm fascinated by the led technology and have been tracking it for years. they keep getting closer to what we need.

cool light at the precise frequencies. i'm ready.

later

 

[delta9nxs]

i was df'ing a plant in flower last night and saw this branch end of a plant i'm about to harvest in a few days.

what you see here is the terminal end of mostly just one branch. i would guess this part of the plant alone will produce at least 4 zips dry all by itself.

this plant was df'd severely at onset of 12/12 and then again at end of stretch.

no vegetative df'ing on this one.

 

[mugenbao]

i was df'ing a plant in flower last night and saw this branch end of a plant i'm about to harvest in a few days.

what you see here is the terminal end of mostly just one branch. i would guess this part of the plant alone will produce at least 4 zips dry all by itself.

this plant was df'd severely at onset of 12/12 and then again at end of stretch.

no vegetative df'ing on this one.

Good lord... That single branch is bigger than my biggest plant, haha. Wow.

 

[delta9nxs]

here it is upside down. i don't know why i'm doing this except it looks cool. different perpective.

 

[DevilWeed]

Hmm, so no pre flower dfol? I've done both and for the way I WAS growing veg defol was a life saver. I could keep a plant less than a foot tall for 40 or 50 days and by then is was a branch monster. My cheese strain loved that treatment...

Are you still testing various levels and timing of defoliation? Can't remember if you already posted about it...too much meds me thinks...

 

[mugenbao]

here it is upside down. i don't know why i'm doing this except it looks cool. different perpective.

HA! I clicked on it, 'cause, you know... I see a pic by d9 and I just do that. It's a Pavlovian thing, I guess. Didn't even read the post first. I was thinking "Damn that looks nice. Kinda familiar though. Wonder why the date is upside down?"

.

 

[huntingbb]

wow what fail - i went to do this awesome superquote from your whole thread but it dropped the images ;_; Guess its because their thumbnails - much more work lol.



so coco goes down that bit that drops in eh?


same deal here, i assume - but that white bit doesnt seem to go all the way down, as youve dropped the 'wick' in the design this seems sweet..

i was wondering about all the holes in the side of the top bucket though - you dont get leakage through those? just a little maybe? (thinking ahead for mess) is this where the air layer is you speak of? how high up the 3.5gal top bucket in your modified setup would you do?

hi, if you get that 1k and have an 8x8 space for 4 plants, set up the pulse feed, use an air pruning container, run a vertical bare bulb with 12-16 inches to the plants, a fan blowing straight up past the light, a reciprocating fan on the whole area, and veg 6-8 weeks i think you will get at least 2 lb's per grow. hortilux are the shit. figure 16 weeks total per grow and thats 96 oz's per year.

two people could stay ripped 24/7 with that much weed.

starting with a 6x9x8 DxWxH can get up to 8x9x10 DxWxH (whole room at that point) would love to see 4 blow that up, but how tall do they get? your dimensions in veg i think are like 40x50 wide / tall - kinda curious if it would be possible to do two levels to fill the whole thing (not that i'm courageous enough to run it lol)

hi, daggerinmyback! welcome!

ok, lets do it!

you can get black plastic 3.5 gal buckets at www.usplastics.com if you do use these they make what they term a reusable lid. i strongly recommend these as they go on and off easily.

i'm currently thinking about using a second 3.5 on top instead of the 5 gal buckets. it would be a little more stable with a lower center of gravity.

you will also want to order 3/16" id black latex surgical type tubing. i could find it online at several places. google it. fishing and diving supplies.

don't buy that amber 1/4" id tube lowes sells. it won't seal without tape and allows algal growth which can and will clog your lines.

are you going to run a single room for everything? how many plants? how big do you want them? do you want to pulse feed also? looks like you have the pumps.

well i've already got 8 5-gal buckets, so maybe i'll put the 3.5's on top of the 5's.

So i get your big rez -> control bucket; control float valve to fill it, this is where the water level for the whole setup comes and is controlled - i get this so far - gravity fed is good for me.

you specify line sizes and the like, so i can rehash that on my own - how much water total per girl per day do the girls use in flower? (im gonna try to do 8-12 or so in my 6x9x8 - i know im crazy but their gonna be a bit smaller than yours) Also thinking about blumats for the topwatering instead of the pulse - at least in veg.

but my main query is about your temps. all that water is bound to want to warm up, grow crap, etc. what do you do to control this? What are your air temps set at in veg/flower? Tryin to implement in the next 2-3 weeks or so

Thanks in advance for bothering, I appreciate the time spent on random internet dudes

 

[DevilWeed]

Delta, that branch is insane!

I was just thinking about something...maybe it was already discussed. If someone doing drain-to-waste coco put a 6" tailpiece on each pot and elevated them, would the PWT after a flood be lower in the pots? I need to reed back through all those posts... If that was the case one could flood a lot more often without worrying about drowning. Got thinking about this because of all the plants I have to finish before I can really switch to PPK's...

Here's a couple shots of my biggest girl to date. It's about 40" from soil to tip, about 36" across and about 20" deep. It's between two bare 1k's about 30" on center.

Some young ladies just starting out in life:

 

[DevilWeed]

Oh, that big girl is GH Cheese. Was a lucky freebie and is my current favorite. DSDv2 may change that. That one is growing in organic soil mix (LC1) fed Jacks@1.5EC for the last month or so via Blumats. Wish it was in coco...

She produces some nice buds:

 

[jjfoo]

devil weed,
yes , I use wick on all my drain to waste veg plants

Since adding wicks my plants stopped drooping as the day passes. I would say they where showing moisture stress from the perched water table keeping the bottoms soggy.