Please help with my white widow auto

[Arthur]

I used fox farms for several years. I dumped it about 3 years ago. Found if I followed along with the "normally accepted" methods that the soils pH was dropping early to mid flower. Exactly the time you want it going in the other direction.

If these plants were in my tent, I'd do a slurry test of the medium and see what that says, pH and ppm. Soil in flower I'd like to see it 6.4 up to 6.8ish. Ppm, under 200 hungry, over 800 not eating.

If the pH is good, and ppm high, back off the feed, low, up the load.

If the soils pH is out, this will need something other than a standard ph up or down will fix. Something more like limestone for up and bonemeal for down. They'll stick around in the soil and move the pH in the needed direction.

 

[blackthumb5]

I used fox farms for several years. I dumped it about 3 years ago. Found if I followed along with the "normally accepted" methods that the soils pH was dropping early to mid flower. Exactly the time you want it going in the other direction.

If these plants were in my tent, I'd do a slurry test of the medium and see what that says, pH and ppm. Soil in flower I'd like to see it 6.4 up to 6.8ish. Ppm, under 200 hungry, over 800 not eating.

If the pH is good, and ppm high, back off the feed, low, up the load.

If the soils pH is out, this will need something other than a standard ph up or down will fix. Something more like limestone for up and bonemeal for down. They'll stick around in the soil and move the pH in the needed direction.

I have not done a slurry test because The living soil is in the bottom 1/3 of the pot and I would need a sample from there for a good ppm reading, correct? I have tested run off and it seems good. Feed plain 6.5 water and 6.3 - 6.4 comes out. About 1.5 EC

 

[Arthur]

I have not done a slurry test because The living soil is in the bottom 1/3 of the pot and I would need a sample from there for a good ppm reading, correct? I have tested run off and it seems good. Feed plain 6.5 water and 6.3 - 6.4 comes out. About 1.5 EC

Slurry tests soil is taken halfway between plant and edge of pot, an inch or so down is plenty.

I do it 3 times minimum every grow. Once before the seed goes in, once after sexing, at the switch to flower, and once mid/late flower.

Needs to be done with RO or DI.

Runoff is what's not in the pot... pot medium can be quite a bit different than what comes out the bottom.

Also, you don't let the plants sit in saucers with runoff? Correct? Re uptake of what ends up in the catch pan will cause some real issues as well.

 

[LearningMore]

I just installed this window AC in my basement: Midea U Inverter Window Air Conditioner 10,000BTU, U-Shaped AC. I have been very happy with it (my basement has central air, but with the output of multiple tents, I needed extra cooling power). I’ll be hitting 90s next week and 105 within a few months in my area, so I went with a larger BTU than “required” by my square footage. So far it has performed beautifully.

FYI: Beware ‘portable AC’ units. They are grossly inefficient, especially compared to window units. The “dual-hose” portable units are better, but more $$ and still below the efficiency of window units. I don’t want to make my electric bill any more painful than it already is 9 months of the year...

 

[blackthumb5]

Slurry tests soil is taken halfway between plant and edge of pot, an inch or so down is plenty.

I do it 3 times minimum every grow. Once before the seed goes in, once after sexing, at the switch to flower, and once mid/late flower.

Needs to be done with RO or DI.

Runoff is what's not in the pot... pot medium can be quite a bit different than what comes out the bottom.

Also, you don't let the plants sit in saucers with runoff? Correct? Re uptake of what ends up in the catch pan will cause some real issues as well.

Just did a slurry test. Ph was 5.9 and ppm was 59. I'm sure the ppm is very inaccurate because with a runoff test it's 1.5 EC

 

[WildBill]

I have not done a slurry test because The living soil is in the bottom 1/3 of the pot and I would need a sample from there for a good ppm reading, correct? I have tested run off and it seems good. Feed plain 6.5 water and 6.3 - 6.4 comes out. About 1.5 EC

With that nls crap, anything you do good for the plant or mainly roots, will result in more uptake.......making things worse. I don't think a SST would help. It would just help the roots uptake more.............I think.
I didn't see what day of the grow, but the first pics look to be fairly well into flower.
I'll throw this out and get the opinion of others.
Try to get your temps to 78-82*F
Try to get your VPD around 1.0 kPa or slight lower................................keep it lower to help limit nute uptake
Flush the next time water is needed.
Heavy dose of LITFA

You're another victim of nls. There have been way too many!

 

[blackthumb5]

With that nls crap, anything you do good for the plant or mainly roots, will result in more uptake.......making things worse. I don't think a SST would help. It would just help the roots uptake more.............I think.
I didn't see what day of the grow, but the first pics look to be fairly well into flower.
I'll throw this out and get the opinion of others.
Try to get your temps to 78-82*F
Try to get your VPD around 1.0 kPa or slight lower................................keep it lower to help limit nute uptake
Flush the next time water is needed.
Heavy dose of LITFA

You're another victim of nls. There have been way too many!

Hi sorry what is SST? Also on the VPD chart I don't see anything around 1.0 except for in extreme red?

 

[WildBill]

Hi sorry what is SST? Also on the VPD chart I don't see anything around 1.0 except for in extreme red?

Seed Sprout Tea.

DL phone app for vpd
Until I get my Pulse ststem, I'm using an app by BE Divergent
Search in the Playstore for VPD calculator. It was the third down when I searched.
It being red because it's not optimal for this period of the grow. It slows the transpiration of your plant and therefore the uptake of nutes.
I've been dealing with too much dolomite because I used EarthBox recommendations.

I have kept my girls alive by intense microbial activity and working on root health. I really can't say if that would work on your girls or not. The situation is pretty different.

 

[Arthur]

Just did a slurry test. Ph was 5.9 and ppm was 59. I'm sure the ppm is very inaccurate because with a runoff test it's 1.5 EC

PH is like earthquakes, big differences are seen in small movements.

At this point in the grow, you should be .5 to .7 higher. That's a fair distance off. I'd be looking to fix that first. Out of pH range means she's not getting the food your giving.

 

[blackthumb5]

PH is like earthquakes, big differences are seen in small movements.

At this point in the grow, you should be .5 to .7 higher. That's a fair distance off. I'd be looking to fix that first. Out of pH range means she's not getting the food your giving.

So should I start phing my water around 7?