Vapor Pressure Deficit or VPD. Which chart is right and why so much variance?

[Rootsruler]

yeah, that's my one rub with hydro, getting it to a state of equilibrium then not fucking with it too much aside from ongoing maintenance. can't really trust a buddy or babysitter to handle that kind of work when you're away though. hell, i had to fly out of town for work last year late in flower on my last run. left a simple 30 step instruction set for refilling the res for my ol lady to follow lol. was still biting nails hoping she did it right, but she managed fine then i fucked up it all up with a timer incident guess that proves your point haha

i never did good with soil, tbh. at least not with cannabis. just about anything else i can grow in it, even supposedly "hard to grow" plant varieties. cannabis, though... not so much. ime, hydro has yielded more upfront cost (learning, materials, physical effort) but once i came to understand the whats and whys, that upfront effort has yielded a hell of a lot less involvement on my part.

I always tell newbs that want to go full hydro that they are now committing to being God for those plants. You control almost every component of their livelihood. Fuck one of them up and everything goes out of balance.

I like to break it down to them in zones. Environment and root zone. In dirt, the root zone is pretty much handled so the only thing you really need to worry about is the environment and keeping it within the range you want for the growth level the plant is at. Easy. In hydro you have to chew gum and walk at the same time. Not so easy.

Maybe a better example would be a juggler trying to juggle 30 things at once for hydro.

 

[tobh]

I always tell newbs that want to go full hydro that they are now committing to being God for those plants. You control almost every component of their livelihood. Fuck one of them up and everything goes out of balance.

I like to break it down to them in zones. Environment and root zone. In dirt, the root zone is pretty much handled so the only thing you really need to worry about is the environment and keeping it within the range you want for the growth level the plant is at. Easy. In hydro you have to chew gum and walk at the same time. Not so easy.

Maybe a better example would be a juggler trying to juggle 30 things at once for hydro.

that's a great analogy. then the hardest battle they face is the inevitable overwatering but that's easily correctable once they figure out how to water properly.

 

[Rootsruler]

that's a great analogy. then the hardest battle they face is the inevitable overwatering but that's easily correctable once they figure out how to water properly.

Yup. Learning to water correctly is easy. Learning to create a survivable, water based microbiome is much harder.

 

[tobh]

Yup. Learning to water correctly is easy. Learning to create a survivable, water based microbiome is much harder.

sterile is my cheat code tried the live res route, that was a disaster. went sterile and will never try live again unless i get into like aquaponics or something along those lines. huge digression from the topic at hand, sorry y'all!

 

[Rootsruler]

sterile is my cheat code tried the live res route, that was a disaster. went sterile and will never try live again unless i get into like aquaponics or something along those lines. huge digression from the topic at hand, sorry y'all!

Now ya see....I consider sterile hydro akin to salt based nute programs. Salt based doesn't rely as much on the bacterial and fungal rhizosphere since they are readily available. I see the same thing with sterile hydro. You're not really using bacteria and fungus to break the food down into usable ions.

 

[tobh]

Now ya see....I consider sterile hydro akin to salt based nute programs. Salt based doesn't rely as much on the bacterial and fungal rhizosphere since they are readily available. I see the same thing with sterile hydro. You're not really using bacteria and fungus to break the food down into usable ions.

true that. personally, i wouldn't want to be having fermentation going on with some large volume of water in a hydro system. That just sounds like a smelly, and difficult situation to deal with. Plus, in hydro running salts is just so much cheaper than trying to keep some semblance of a happy biome. when bacteria bloom in large bodies of water it can get out of hand quickly, and thus wreak havoc in all kinds of ways.

 

[Rootsruler]

true that. personally, i wouldn't want to be having fermentation going on with some large volume of water in a hydro system. That just sounds like a smelly, and difficult situation to deal with. Plus, in hydro running salts is just so much cheaper than trying to keep some semblance of a happy biome. when bacteria bloom in large bodies of water it can get out of hand quickly, and thus wreak havoc in all kinds of ways.

Exactly. Why do you want to complicate your grow? Granted, if you have the time and expertise then have at it. You will be handsomely rewarded.

Otherwise, use a method that will get you to harvest. Maximize it then move on to something else that will increase your goals.

 

[Observer]

What you are doing is the way to control all 3. If you want to automate the process, just plug the humidifier into the same timer outlet as the lights.

Overlooked this bit, that's what I did last time run

I'm starting to push my my plants and to do so, vpd has to be right.

 

[pk1]

sterile is my cheat code

agreed

 

[smoke]

Hydro is easy even a cave man can do it. Lol

Ive grown a 4 site rdwc from current culture for the last 10 years. I don't grow live and i don't run sterile. I grow in a style moe termed as "NEITHER". We think part of the reason im able to do it is because every year for the last 10 years i only run 2 grows back to back.

I remember tobh saying to me at the farm that i was either the luckiest grower he new or i have found the answer and i dont know it. We were looking at culture growth and digging deeper before all hell broke out.

We are empty at the moment and plan to start next grow sometime next month

 

[Observer]

Hydro is easy even a cave man can do it. Lol

Ive grown a 4 site rdwc from current culture for the last 10 years. I don't grow live and i don't run sterile. I grow in a style moe termed as neither. We think part of the reason im able to do it is because every year for the last 10 years i only run 2 grows back to back.

I remember tobh saying to me at the farm that i was either the luckiest grower he new or i have found the answer and i dont know it. We were looking at culture growth and digging deeper before all hell broke out.

We are empty at the moment and plan to start next grow sometime next month

I'm intrigued

What would this be called

 

[smoke]

I'm intrigued

What would this be called

So am i, I've bean telling my wife for years that we shouldn't be able to do what we do.

Live, sterile, neither

 

[Observer]

So am i, I've bean telling my wife for years that we shouldn't be able to do what we do.

Live, sterile, neither

Wait

 

[Observer]

from current culture

What