50000 square feet. Colorado Legal rec grow

since1991

since1991

Well-Known Member
ttystikk said:
They don't drain to waste. Excess nutrient accumulates in the coco substrate, they throw it away every run and use fresh. They haul in coco by the semi full. Not exactly environmentally sound, but Boulder County prohibits them from pouring nutrient water down the drain so it's the only solution left.
Click to expand...
Tty....holy shit you gotta be kidding me (i know your not).??? Damn. It makes sense in an ecological way i suppose but damn man. The Dutch government back in the day told the entire greenhouse industry no more open non recovery dtw and they had to do something about all the spent rockwool accumulating in landfills. Dont know how they switched that one up but I do know the big flower fruit and veggie growers in Holland have to recirculate now. U.V. sterilzation and what not. But this no dtw in Colorado rule is definitely news to me. Lets be honest...drain to waste isnt the most ecologically friendly way to grow hydroponically. If you use a bigger pot...keep ppm's on the low side..and keep it wetter than a normal drip to waste (not as much dry down between feeds) you can get away with a no runoff top feed setup and still have substrate balance. Big or small. In Colorado..looks like a grpwer has no choice. I wonder if this applies to straight ag crops as well now??? There has to be some bigger dtw rockwool and cocopeat greenhouse tomato growers that dont like the new rules if it does.
 
Last edited:
greg nr

greg nr

Well-Known Member
So how typical is it for commercial growers to use a living/organic soil with no waste or runoff?

It's certainly possible, and is sustainable, just curious how widely it's done.
 
Merlin34

Merlin34

Well-Known Member
since1991 said:
Tty....holy shit you gotta be kidding me (i know your not).??? Damn. It makes sense in an ecological way i suppose but damn man. The Dutch government back in the day told the entire greenhouse industry no more open non recovery dtw and they had to do something about all the spent rockwool accumulating in landfills. Dont know how they switched that one up but I do know the big flower fruit and veggie growers in Holland have to recirculate now. U.V. sterilzation and what not. But this no dtw in Colorado rule is definitely news to me. Lets be honest...drain to waste isnt the most ecologically friendly way to grow hydroponically. If you use a bigger pot...keep ppm's on the low side..and keep it wetter than a normal drip to waste (not as much dry down between feeds) you can get away with a no runoff top feed setup and still have substrate balance. Big or small. In Colorado..looks like a grpwer has no choice. I wonder if this applies to straight ag crops as well now??? There has to be some bigger dtw rockwool and cocopeat greenhouse tomato growers that dont like the new rules if it does.
Click to expand...
Ttystick is a dumbass. There's no Colorado rules saying you can't DTW.


Sent from my XT1650 using Rollitup mobile app
 
Merlin34

Merlin34

Well-Known Member
greg nr said:
So how typical is it for commercial growers to use a living/organic soil with no waste or runoff?

It's certainly possible, and is sustainable, just curious how widely it's done.
Click to expand...
Unfortunately, I've got no time for organic living soil with as fast as we run through plants. I want easy, sure fire success with no hassles...

Sent from my XT1650 using Rollitup mobile app
 
vanslyke

vanslyke

Well-Known Member
Maaaan!! My hat is off to you!
So much work involved in all this and still posting and sharing with the community. All the plants and set ups are just so perfect.
Can’t wait to keep following this.
 
since1991

since1991

Well-Known Member
Merlin34 said:
Unfortunately, I've got no time for organic living soil with as fast as we run through plants. I want easy, sure fire success with no hassles...

Sent from my XT1650 using Rollitup mobile app
Click to expand...
Running organic soil in these types of ops are almost unheard of. There is a reason organic soil isnt used in production super fast systems. Plants grow so quickly in big controlled environments..organic soil would hold the whole operation up big time.
 
since1991

since1991

Well-Known Member
Cannadab1s said:
Do you have a VPD monitoring system?

Im trying to figure out VPD for my shitty little grow closet. Ha.
Click to expand...
I wouldnt make paying attention to vapor pressure deficit charts and controlling parameters such a priority with smaller setups. Long as its not drastically dry or humid depending on stage of plant growth. VPD stuff was geared more for big veggie greenhouses first off. And bigger op cannabis growers found that paying attention to vpd in sealed co2 injected growrooms gave a better growth rate. Again..I wouldnt let a vpd chart dictate chasing your tail trying to get temps and humidity in line. I run a bigger op for a house and to be honest...I throw the vpd thing out the window towards middle and especailly late flower. I get harder..more frosty and mature flowers when I do it my way.
 
O

organitron

Well-Known Member
Merlin34 said:
The brand the owner bought are Endomaxx. I fucking hate them. The hoods suck. We're in the process of modifying them so we're not lighting the walls... Check out Growers Choice for some inexpensive alternatives.

Sent from my XT1650 using Rollitup mobile app
Click to expand...
Amazing thread Merlin! Can you shed any light on the reflector improvements? Lower the reflector with a spacer and cap the end? Any chance you could hang a gavita reflector on one?
 
You must log in or register to reply here.
Top