"💜💜💜☮️ (UNITY GROWS) LOVE, RESPECT AND UNDERSTANDING".

[RoadKillSkunkHunt]

Hmmm, I never even thought about a leaf reading, never done that before.

It's not hard if you already have the gadget. It's another thing to buy I know. Until then, use the offset.

 

[TheGoldenRoad]

@TheGoldenRoad linked me a thermometer for that, I'll look into buying that for my next grow

Leaf temp is mucho important

 

[LoveGrowingIt]

Currently using this APP on my Android Phone

That's not the app I'm using.

You said I should be using a diffuser.

I don't know if that app needs one. I use an app called 'Photone' that does need one.

 

[LoveGrowingIt]

I love how 95° with 75% rh is right in the happy zone for late flower. If it were only that easy right?

I understand. I probably should describe it better when I show that chart. I was thinking about it but my thoughts didn't make it to my post. There has to be a happy place between writing too little and too much. Writing a wall of text isn't it. So, point taken. Temps in the 70s are usually best for most of us.

 

[mancorn]

Hmmm, I never even thought about a leaf reading, never done that before.

For $10 you can get a touchless baby thermometer. Most have an object mode setting. (Or just offset by 4 degrees )

 

[LoveGrowingIt]

Based on this chart I'm doing okay then for early flowering at 77°

77º F is about what I use for flowering. So... Sounds good!

 

[RoadKillSkunkHunt]

I understand. I probably should describe it better when I show that chart. I was thinking about it but my thoughts didn't make it to my post. There has to be a happy place between writing too little and too much. Writing a wall of text isn't it. So, point taken. Temps in the 70s are usually best for most of us.

However, under LED lighting because it lacks the infrared power that HID's have, an 82F grow area would mean about a 78F leaf temperature. 78F leaf temp is about perfect.

Edit: Yes, I would run with a 77F leaf temperature and be satisfied.

 

[Grownsince95]

Just remember that leaf temp will be closer to ambient if...

The light is too close.

The humidity is high.

Air circulation is poor.

Or any combination of the above.

And if you're aiming for VPD with less than a 4° +/- margin of error you've already got everything nailed down anyway so why bother lol

 

[mancorn]

You place the entire phone in this?

Sorry, I was talking about the Photone app and their diffuser - which isn’t what you’re using.

 

[SunshineSupergirl]

That's not the app I'm using.


I don't know if that app needs one. I use an app called 'Photone' that does need one.

I'll take a look at that app.

 

[RoadKillSkunkHunt]

Just remember that leaf temp will be closer to ambient if...

The light is too close.

The humidity is high.

Air circulation is poor.

Or any combination of the above.

And if you're aiming for VPD with less than a 4° +/- margin of error you've already got everything nailed down anyway.

Which is why for those who strive for every little detail, the infrared thermometer is the tool of choice.

However

Realistically speaking, its more of a range. If you're in the ballpark, you should be fine.

 

[SunshineSupergirl]

For $10 you can get a touchless baby thermometer. Most have an object mode setting. (Or just offset by 4 degrees )

I have a soil thermometer, but that probably wouldn't read a leaf accurately.

 

[RoadKillSkunkHunt]

I have a soil thermometer, but that probably wouldn't read a leaf accurately.

It should read your soil accurately. if you're in the 70f-74f range. (72F is supposed to be ideal) You're fine for a soil grow.

 

[LoveGrowingIt]

Did you buy their diffuser?

I did.

If so, how much of a difference did it make from just using paper?

I never used a DIY diffuser, so I don't know.

I had made one from a piece of PVC with the paper taped on one end. But with no reference have no idea how accurate it is and wasn’t keen to spend $26 on theirs if it wasn't a notable difference (as I hardly ever use it).

I use the app infrequently. I prefer to read the plants for light stress. I mostly use the app when moving a plant to a new tent to set the light to about the same level.

 

[SunshineSupergirl]

Sorry, I was talking about the Photone app and their diffuser - which isn’t what you’re using.

Ahh, I think my app does say to place a piece of white paper as a diffuser.

I'll try that, see if there's any difference.

 

[SunshineSupergirl]

I did.


I never used a DIY diffuser, so I don't know.


I use the app infrequently. I prefer to read the plants for light stress. I mostly use the app when moving a plant to a new tent to set the light to about the same level.

What kind of diffuser is it?

 

[Grownsince95]

Which is why for those who strive for every little detail, the infrared thermometer is the tool of choice.

However

Realistically speaking, its more of a range. If you're in the ballpark, you should be fine.

I stopped buying extra grow toys after I paid $150 for my "quantum" PAR meter. Cost me $25 bucks for every time I've used it lol

Where was that app 5 years ago when we were stuck with lux?

 

[RoadKillSkunkHunt]

What kind of diffuser is it?

For some phones, its nothing more than a sheet of white copy paper.

 

[RoadKillSkunkHunt]

I stopped buying extra grow toys after I paid $150 for my "quantum" PAR meter. Cost me $25 bucks for every time I've used it lol

It's funny you say that. I paid quite a bit more for my "quantum Par meter." It's been sitting in its case for the last few years. I used it maybe a half dozen times and that was it.

I personally think for most home grows, a ballpark reading from something like Photone or PPFD is close enough. It's my feelings that over-lighting is about as common of a mistake as over-watering/watering too frequently.

 

[LoveGrowingIt]

I stopped buying extra grow toys after I paid $150 for my "quantum" PAR meter. Cost me $25 bucks for every time I've used it lol

I think that was meant to be funny. If not, I apologize for the haha.

For some phones, its nothing more than a sheet of white copy paper.

The Photone web site used to have instructions for making a diffuser. I got lazy and bought one.