Please help i have nitrogen toxicity

Aqua Man · Dec 6, 2020

kyle57843 said:
Problem solved thank ypu so much my man they bounced right back after i did what u said still a little droopie

Will take a few days. What are your tenps like?

kyle57843 · Dec 6, 2020

Aqua Man said:
Will take a few days. What are your tenps like?

68f lights of 60 % rh ----76f 50%rh lighta on

Aqua Man · Dec 6, 2020

kyle57843 said:
68f lights of 60 % rh ----76f 50%rh lighta on

Reasonable.. bit high rh with lights on may benefit bit they will do fine like that.

kyle57843 · Dec 6, 2020

Aqua Man said:
Reasonable.. bit high rh with lights on may benefit bit they will do fine like that.

Dude I owe u big time my dude they grew like 2 inches in the dark cycle look 1000 times better now u the man my dude

kyle57843 · Dec 6, 2020

Aqua Man said:
Reasonable.. bit high rh with lights on may benefit bit they will do fine like that.

Aqua Man · Dec 6, 2020

kyle57843 said:
Dude I owe u big time my dude they grew like 2 inches in the dark cycle look 1000 times better now u the man my dude

Glad to hear bro

Aqua Man · Dec 6, 2020

Should have said bit higher RH will benefit them but 50 is ok. My target would be 60-65% but not a huge deal. They will be fine like that.

BroScience101 · Dec 6, 2020

Aqua Man said:
Should have said bit higher RH will benefit them but 50 is ok. My target would be 60-65% but not a huge deal. They will be fine like that.

He can go even a bit higher on RH.

I converted his 74 f to c and got about 23c. Plugged it into my vpd calculator.

70% will get you a vpd of .8 which is perfect for veg with lights on .

I have this very old screenshot of spur who basically gifted the knowledge of vpd to the cannabis community.

So in veg without a scrubber 65%-70% will put you in that goldie locks zone of .8-1.0kpa

Aqua Man · Dec 8, 2020

BroScience101 said:
He can go even a bit higher on RH.

I converted his 74 f to c and got about 23c. Plugged it into my vpd calculator.

View attachment 1064570

70% will get you a vpd of .8 which is perfect for veg with lights on .

I have this very old screenshot of spur who basically gifted the knowledge of vpd to the cannabis community.

View attachment 1064571

So in veg without a scrubber 65%-70% will put you in that goldie locks zone of .8-1.0kpa

Have to take leaf temps into account when using VPD trust me there is a pretty significant difference and generally speaking you calculate much higher RH than should be without using leaf temps.

I did a write up here that gives a formula for a calculator at the end but there are apps for this now.

VPD (vapor pressure deficit)

Ok i was gonna sit down and write out a whole article but i have been lazy so instead instead I'm going to copy paste because im lazy. This is not my work so let start. You may find this very long but its worth the read. Some may want to skip ahead. I have added here and there to what i feel is...

www.thcfarmer.com

RippedTorn · Dec 8, 2020

linde said:
if you want healthy plants NO dont let them dry out. Cannabis is not a succulent. roots won't form in dry soil.

Airpruning! Killing the roots is good! I heard this on every grow forum the last 10 years.

And now you must use a rebranded Chapin 1949 sprayer with a pot leaf to water your plants. I love this religion!

beluga · Dec 8, 2020

RippedTorn said:
Airpruning! Killing the roots is good! I heard this on every grow forum the last 10 years.

And now you must use a rebranded Chapin 1949 sprayer with a pot leaf to water your plants. I love this religion!

... what do you do here..?
Just pop in to hang out and ridicule the host community?

Please help i have nitrogen toxicity

Please help i have nitrogen toxicity

Aqua Man

kyle57843

Aqua Man

kyle57843

kyle57843

Aqua Man

Aqua Man

BroScience101

Aqua Man

VPD (vapor pressure deficit)

RippedTorn

beluga

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