Low Humidity

[Kingrow1]

No humidity wont do this and your meter sounds like it was under the lights as far too low to believe

This is your statement, yes? You wrote this? Far too low to be believed? Why? Its a completly believable situation, in like half the US. What could u mean here except, there's no way your humidity is in the 20s?
And if your humidity ain't right, then ur plants ain't right! Of course it can effect your final product.

I wrote humidity that your '20%' humidity will not cause the rubbish buds you describe and if half of the US is 20% dont you think this would be well documented in a million US grows Hmmmmmmmmmm

You can be right just not on this occassion, its 20% here sometimes, bud does fine and dries fine and then cures just fine but believe the hype if you wanna.... sucks you cant grow decent in half the US

 

[R Burns]

I wrote humidity that your '20%' humidity will not cause the rubbish buds you describe and if half of the US is 20% dont you think this would be well documented in a million US grows Hmmmmmmmmmm

You can be right just not on this occassion, its 20% here sometimes, bud does fine and dries fine and then cures just fine but believe the hype if you wanna.... sucks you cant grow decent in half the US

Low humidity negativly effecting grows and bud is well documented, dude! And ur quote is right there! "Thats far too low to believe"! Thats what u wrote! Its right there!

 

[Kingrow1]

Low humidity negativly effecting grows and bud is well documented, dude! And ur quote is right there! "Thats far too low to believe"! Thats what u wrote! Its right there!

Yes far too low to believe when members like you come in here quoting science but still have your thermometer under the light.

You are getting far too confused and ego tripping bro..... Quote where i said 20% is far too low to believe it exists int his world...?

Idiot

 

[coreywebster]

What does that have to do with humidity sensing? We aren’t measuring radiation or heat. We are measuring the airs moisture content.

I think what he is trying to say in only a way that king could or would is..
RH is relative humidity, relative been the key word, Its relative to the amount It could hold at a given temperature, the sensor in the hygrometer measures the moisture level and gives a RH value relative to the temp so if the temp is reading higher due to been under direct light it will show a false reading of lower RH.
The IR warms the plastic hygrometer giving a false air temp reading in turn gives a false RH reading.

 

[Moldy]

I grow in 20-30% RH all of the time. Some of time it goes to 35% but only when it's rainy in the desert. I wish I had 50% RH but can't run a humidifier in my room because I believe fresh air is more important. I probably don't yield as much but my bud works for me. It is good for late flower as I don't worry about mold. At near 5000' elevation things dry out fast. When drying I hang in boxes to keep RH above 50% until jarring.

 

[Old Thcool]

I think what he is trying to say in only a way that king could or would is..
RH is relative humidity, relative been the key word, Its relative to the amount It could hold at a given temperature, the sensor in the hygrometer measures the moisture level and gives a RH value relative to the temp so if the temp is reading higher due to been under direct light it will show a false reading of lower RH.
The IR warms the plastic hygrometer giving a false air temp reading in turn gives a false RH reading.

That may be so if you are using street lights, led is much cooler. I think that a sensor 20 plus inches away would be only moderately altered, as I said before, I’ve tried the sensor both above and below the fixture and it reads the same so??? Maybe the sensor is lying?

 

[Old Thcool]

I think what he is trying to say in only a way that king could or would is..
RH is relative humidity, relative been the key word, Its relative to the amount It could hold at a given temperature, the sensor in the hygrometer measures the moisture level and gives a RH value relative to the temp so if the temp is reading higher due to been under direct light it will show a false reading of lower RH.
The IR warms the plastic hygrometer giving a false air temp reading in turn gives a false RH reading.

Oh and my temp meter is at the same level ( top of canopy ) as my RH sensor. That way they are both the same temp and thus the RH is not skewed by not sitting in the different zone as the temp sensor. I may be doing it all wrong but just to be sure I tried hanging the RH sensor above the light- reads the same. No difference in venting times either. So I think it may make a small but imperceptible difference that may or may not effect the ultimate goal. This may be a totally different situation using street lights?

 

[Zogs]

Most if not all have zilcho conception of -

* Humidity
*Curing
*Drying

You and the op disply this which is why we disagree here

How is it you come to the conclusion that I know "zilcho" about "humidity, Curing, and Drying" from my post ? Did I post something that was not factual ? Don't get me wrong, I'm not the know it all of these things, but to "zilcho" me.. Come on.

Allow me to recap, I believe I said he would have reduced yields and slower growth ? Is this not correct ? Are you familiar with VPD ? Are you aware that we are not all from the U.S and have different climates and RH ?

Did you even read my post , or are you just clueless ?

 

[Old Thcool]

How is it you come to the conclusion that I know "zilcho" about "humidity, Curing, and Drying" from my post ? Did I post something that was not factual ? Don't get me wrong, I'm not the know it all of these things, but to "zilcho" me.. Come on.

Allow me to recap, I believe I said he would have reduced yields and slower growth ? Is this not correct ? Are you familiar with VPD ? Are you aware that we are not all from the U.S and have different climates and RH ?

Did you even read my post , or are you just clueless ?

Not trying to be rude here, but after reading his posts I am guessing English may not be his mother tongue? Perhaps he is merely hard to understand and we aren’t getting the meaning he is trying to portray? Sorry if I’m wrong.

 

[coreywebster]

That may be so if you are using street lights, led is much cooler. I think that a sensor 20 plus inches away would be only moderately altered, as I said before, I’ve tried the sensor both above and below the fixture and it reads the same so??? Maybe the sensor is lying?

Yeah its the IR so any light with IR in it, obviously LED doesn't have any or not enough to make a difference.

I was just trying to put his point across as folks tend to dismiss everything he says due to his manor. But he does have some good points when you can sypher them out of his rants.

 

[cock roach]

Well, I have two more seeds of the same strain, so I may just grow them again, and see if these are better? It really pissed me off that they were so weak. I think I did what I was suppose to do for them. Mephisto will be my next seeds. Btw my Hygrometer was above the Led's ...just saying.

 

[Old Thcool]

Well, I have two more seeds of the same strain, so I may just grow them again, and see if these are better? It really pissed me off that they were so weak. I think I did what I was suppose to do for them. Mephisto will be my next seeds. Btw my Hygrometer was above the Led's ...just saying.

If you are using led tech I highly doubt it matters much where you put it. Unless it’s over the power supply lol

 

[Bookush34]

I grow in the same climate with wood heat i see humidity get below 20% in the house. the grow tent is usialy 20-30%.
I run a humidifier in the tent now. getting in the 45-60% RH area. i doent notice any difference in bud quality at the end. What i do notice is more then double the growth rate in veg. my plants are ready to flip in 4-6 weeks. before it was 10-12weeks to get the same size plant

 

[Kingrow1]

Yeah its the IR so any light with IR in it, obviously LED doesn't have any or not enough to make a difference.

I was just trying to put his point across as folks tend to dismiss everything he says due to his manor. But he does have some good points when you can sypher them out of his rants.

No one cares to learn to grow they just want product to smoke or sell, most forget a hobby isnt mastered overnight and thus fail to see the info for the hype.

If i explain correct placement of a thermometer on a forum where 90% of growers have it under the lights and at canopy then it is easier to troll me out than learn hard and see if im right.

My attitude is born from contempt, screw these idiots, if you cant cite basic info you shouldnt be citing anything at all just learning and loving, the opposite happens and we have so many toxic subjects and members

 

[Old Thcool]

No one cares to learn to grow they just want product to smoke or sell, most forget a hobby isnt mastered overnight and thus fail to see the info for the hype.

If i explain correct placement of a thermometer on a forum where 90% of growers have it under the lights and at canopy then it is easier to troll me out than learn hard and see if im right.

My attitude is born from contempt, screw these idiots, if you cant cite basic info you shouldnt be citing anything at all just learning and loving, the opposite happens and we have so many toxic subjects and members

What? Why not explain then where to place the sensors? You say that putting them below the light is wrong but don’t explain what is right, I’m waiting for my lesson... I have always be under the assumption that I want to know the ambient temp in the room at plant level? The plant is not above the light, why would I want to put my temp sensor where all the heat collects? That can be very different from canopy. Again I could be wrong here so can somebody give me a straight answer without all the hostility?

 

[Bookush34]

What? Why not explain then where to place the sensors? You say that putting them below the light is wrong but don’t explain what is right, I’m waiting for my lesson... I have always be under the assumption that I want to know the ambient temp in the room at plant level? The plant is not above the light, why would I want to put my temp sensor where all the heat collects? That can be very different from canopy. Again I could be wrong here so can somebody give me a straight answer without all the hostility?

He can’t give you a straight answer. He needs to get way into it. Then what some one questions what he says he gets to name calling. Lol.

 

[coreywebster]

What? Why not explain then where to place the sensors? You say that putting them below the light is wrong but don’t explain what is right, I’m waiting for my lesson... I have always be under the assumption that I want to know the ambient temp in the room at plant level? The plant is not above the light, why would I want to put my temp sensor where all the heat collects? That can be very different from canopy. Again I could be wrong here so can somebody give me a straight answer without all the hostility?

Yeah, so with you using LED it doesn't make much difference. But with the standard grower its a rule that seems to have been forgotten.
The temps that are most often talked about and most vital are the air temps, so you would measure it in shade and with well mixed air, its often stated above the light line, but just as well in a shaded area where air is not stale, you could get a difference in air temp from lower to higher in a situation where air is not been moved.
Anyhow the idea is to have something like a Stephenson screen, which reads air temp without interference from light radiation.

The reason we measure air temp that way is too be reasonably accurate, we can use our hand to measure radiant heat (again this is more specific to HID lighting). Plants have a low tolerance to high air temps, it greatly impedes performance, but radiant heat is different, plants can take almost double in radiant heat, some over 50degrees C depending on cultivar. So we use our hand at canopy to measure radiant heat and if you can hold your hand there its a pass. Obviously its a crude way of judging but it works as a rough guide.

I've seen plenty of folks panic and prepare to give up over the years because they had a 600w HPS in a 4x4 and a black hygrometer at canopy level and cant figure out why they are running at 95f no matter how much extraction they are using. Luckily most hygrometers are white so the effect is lessened, but it still throws off the readings and the dialing in of the environment.
Someone may think they want to run at 74f yet could actually be running at 69f and wondering why plants are not transpiring properly or why they have slow growth and a calcium deficiency and root problems.

That's my 2cents anyhow, excuse my rambling.

 

[SPLFreak808]

Foliage temp and ambient temp (root zone) are two different readings, both are important but only 1 of them will tell you your actual air temperature/rh and that's the sensor below the foliage. If i put my sensors outside in direct sunlight they will hit 130+ even though its only 75f at the moment.

If you run an air conditioned room, you'll learn quickly that you need to always check root zone/ambient temps and that just doesn't happen if you only read above the foliage.

 

[Bluntroll86]

Yeah, so with you using LED it doesn't make much difference. But with the standard grower its a rule that seems to have been forgotten.
The temps that are most often talked about and most vital are the air temps, so you would measure it in shade and with well mixed air, its often stated above the light line, but just as well in a shaded area where air is not stale, you could get a difference in air temp from lower to higher in a situation where air is not been moved.
Anyhow the idea is to have something like a Stephenson screen, which reads air temp without interference from light radiation.

The reason we measure air temp that way is too be reasonably accurate, we can use our hand to measure radiant heat (again this is more specific to HID lighting). Plants have a low tolerance to high air temps, it greatly impedes performance, but radiant heat is different, plants can take almost double in radiant heat, some over 50degrees C depending on cultivar. So we use our hand at canopy to measure radiant heat and if you can hold your hand there its a pass. Obviously its a crude way of judging but it works as a rough guide.

I've seen plenty of folks panic and prepare to give up over the years because they had a 600w HPS in a 4x4 and a black hygrometer at canopy level and cant figure out why they are running at 95f no matter how much extraction they are using. Luckily most hygrometers are white so the effect is lessened, but it still throws off the readings and the dialing in of the environment.
Someone may think they want to run at 74f yet could actually be running at 69f and wondering why plants are not transpiring properly or why they have slow growth and a calcium deficiency and root problems.

That's my 2cents anyhow, excuse my rambling.

Been looking for this for a while cheers

 

[cock roach]

Well I ordered from Mephisto and got the Alien Vs Triangle F2. I threw away the Afghan Kush Ryder from World Of Seeds, and not waste my time with them. The other wos seeds are probably bad too. Mephisto sure has good review's.
Wish me luck on Mephisto ….