First grow - Creme de la Chem

[o0644]

Transplant 2: electric boogaloo was Feb 27th pretty sure. From clay pot to 3 gallon.

Feb 29: Day 28, 17. Think the old plant sprouted Feb 1st on a Thursday, so it'd be day 29? Whatever. Watered new plant ~500mL just water. 78F 1.1 to 1.4 vpd lights off, humidifier off

Mar 1. Day 30, 18.
Lights on: max/min/avg not counting spike when tent was open
temp 82.4, 79.0, 80.6
humidity 69.8, 61.1, 66.2%
vpd 1.31, 1.07, 1.17

PAR was over 1000 on the top of the plant after it grew over a few days. Had some tacoing. Moved light up. Have to run AC on house lower with light at max.
Watered old plant after 3 days. I should've got a 2L beaker. or maybe 5L, it took 3L to get runoff. Plant pot was light. top soil slightly moist.

Per liter: 2 drops si tech, 1.6mL superthrive/dynagro bloom, 1ml calimagic, 1mL pH up undiluted, 2mL voodoo juice
Seems it takes a lot more pH up to raise pH than pH down takes to lower the same amount of pH. I mix with a fork after adding each thing, I don't wait for hours like I think I read somewhere. Si tech instructions say to use right away and not store the mix.

1st pic is from Tuesday, rest today.

Couldn't resist trying to do some gentle leaf tucking with twist ties. Should I already cut the first few sets of leaves that are almost laying on the soil, and much smaller than the fan leaves above them?

Will test runoff pH in a bit.

I guess I need a tray with holes or something, for better runoff.

 

[Rootsruler]

Did you ever download a light meter app? Try and use DLI as your light program. Much easier to calculate what you're giving your plants at each stage of growth.

Remove any leaves touching dirt.

 

[o0644]

I got Photone, but it seemed to not be calibrated for my Pixel 6a, so I got a quantum PAR meter

 

[Rootsruler]

IIRC, there is some sort of filter you need to use with the photone app to calibrate it correctly.

 

[Rootsruler]

Use this chart to get your light in the ballpark.

Use this one if you're using DLI as your measure of light.

 

[Bluey]

I get much more accurate results using PPFD Meter App than the Photone App.

I'm using a Samsung S23 Ultra and Photone mistakenly tries to correct the reading as if a cover is on my camera, and it's not.

 

[o0644]

wtf my T3 humidifer shipped already. Even though it said it won't be here until March 20 or so. I had even ordered an Arduino-compatible microcontroller, some soil/temp/humidity sensor board thing, relay, CPU fan, water mist element, which wasn't really cost effective. Looks like I won't need to set all that up until I get more tents.
The ACI fan that's not inline makes a clicking noise as it moves side to side.

 

[o0644]

I didn't expect less light to be needed once flowering starts, or maybe that's more for photoperiod? Since it's daily light

 

[Rootsruler]

Ooops! My bad! I forgot you're growing an auto...

Auto DLI chart

 

[Rootsruler]

ACI just came out with a Gen 2 fan. If yours is the older style contact them and they will replace your fan for free.

 

[Rootsruler]

Bluey What does the PMA calculate? The Tent Buddy app I have will calculate PPFD/LUX/DLI/VPD.

 

[Bluey]

Same roots but havent seen VPD on it. I only use it for PPFD and DLI but it does have a mapping option to plot light levels across your grow area which I have usedn sort of. it's a good app. Good lighting options too but I think they all have pretty good options there now.

As to which one works best you might find it is sort of phone dependent. Some work great on some phones but not others and vice versa.

I don't

 

[o0644]

I'm taking the ppfd at the top of the plant in micromol/second and multiplying by 86400 * 18 / 24 * 10^-6 to get DLI, ended up turning the light down to 7. ppfd is much lower at the fan leaves though

 

[Bluey]

My understanding is 45 DLI is the very upper limit. A lot of plants won't handle that either.

To the auto growers what's the best DLI you can get consistently without problems, without light stress or problems with nute deficiency?

 

[o0644]

3/4/24 watered 3L with same ratios, got 10% runoff
watered new plant a bit, just water

78F 60-65% RH

 

[Bowhunterwoody]

I mistakenly pushed mine to about 48 for about 10 days and I cooked her pretty good. I was running my light 20 hrs on and had the photone app set at 18 hrs. Was way too much for her. Definitely my mistake with the app.

 

[o0644]

dang ol stretchy

75-81F 55-63% humidity

Few leaves have spots like this

 

[o0644]

boron deficiency on the new plant? may start feeding it nutes. slight nutrient tip burn on old plant? running out of space on this tent?

 

[Bluey]

I don't think so. First pic shows the beginnings of a manganese deficiency, as indicated by a few small rust spots.

 

[o0644]

77F 55% humidity
Should I reduce nutes and try watering with 6.0 pH? Since I read that's how to make manganese more available