12/12 switch + 13 days
A lot of LST with the wonderful clips, like a scrog, but without net. π
Still no pistil (from seeds). The stretch is really strong, i have to fight to maintain the stem as flat as possible.
I keep the nutrients EC low and use the basic full spectrum light during the day. (no 390, 660 or 730 NM pucks. It s too early).
But, i use the Far Red 730 initiator for 7 minutes after the light off, and the Deep Red 660 for 7 minutes before the light on.
I use voltage reduction for the fans. Very quiet setup. No heat issue. Great airflow in and out.
The filter is outside in push mode.
The sativa domination is starting now. In veg, was mostly indica.
EC 1.1
Base water 0.38
FInal EC 1.48.
The XS2000 led panel is used at 50% for 680 PPFD.
Nutrients feeding :
CANNA Coco A & B (NPK 5-3-3 / Ca 6.3 / Mg 2.4 / So2 1.8) - Daily
Ata XL - Atami - Stimulator (PK 2-2, enzym, humic, amino acid) with the base nutrient but added only when the tank is close to be empty (1 week capacity). 1ml/l
Seaweed - Terra Aquatica - Pre-flowering activator - Foliar only. 1.5 ml/l - x2 spray/week until end of stretch
I never work with quantity ml/l for the base nutrient.
I prefer EC/PPM probe and my feeling :)
Note that the UVA & Far Red are used in this session for morphology control only, and overall better quality with uva to the final product.
I don't expect any gain (yield, thc %). The science today bring some solid conclusions after many trials.
The Deep Red 660 complete the Far Red if i want even more elongation during veg(but no need), and complete the daily spectrum in flowering advanced stage without cons.
I have less constraint with this mini box (footprint, heat, air flow, noise, inertia, hygro... than my previous grows in bigger tents.
The only tricky part is the sativa dominant stretch in a propagation (modified) box. But i m sure it is manageable.
@roxgreen, that's some great info you provided me with my friend! Some food for thought no doubt, Thank you for the detailed message, I'll definitely look at the photos you posted!
Yeah for me the challenge is the vertical hight, as I also use run to waste technique, and I do it the old fashion way with a hole underneath for collecting the water manually π so the 140cm hight is beraly enough for me, and I also applied the exhaust fan and filter outside my tent,
So I'll definitely like to see smart (!) Small setups to help me manage things better,
Thanks again for the info!βοΈπ½π±
@1_Plant_Wonder, 40x40 is very small, if you start from clone it is possible but too hard from seed and irrevelant.
i started with a DP60 (dark propagator from Secret Jardin in Europe), very cute box and setup but here again, from seed, it's really hard, or maybe with only 1 indica plant.
That's why i switch to a 90x60x98 DP90 Secret Jardin (https://www.secretjardin.com/product/dark-propagator-90/). wider, still small tent, and yes... it's the minimum requirement for flowering.
Yes i use an extractor and filter. google DF16E150 for the extractor, and DF16F150 for the filter. You can mount them outside in push mode like i did in the DP60. i have changed to pull mode in the DP90 because there is room for that. In the DP90 you can put a bigger filter if you want, it works nice and 24v, small footprint too. Check the new pics i posted for you about it.
I use both for the DP60 & DP90. A little more expensive than other brand and classic design but the integration with the secret jardin tent system is great (https://www.secretjardin.com/ducting-flange-connectors/)
I really like their flange system because you can do your hole with the tools they provide, where you want and as much as you want, even for the cable & irrigation management.
I grow for many years now in 120x120 (4x4) big tent, 3x3... but i definitly switch to a smaller setup.
Note: for the DP60, i customized it a bit by adding a water deep tray for my run to waste system. it add 18 cms in depth, require a DIY table cut out and some screws. You can watch the trick from the photos.
@roxgreen, love the smart mini setup! Wanna do something like that one day soon,
I do have a 40x40x140 but I wanna do something wider and vertically shorter...
Do you use an exhaust fan and carbon filter? If so how small is it? π
Thanks in advance!βοΈπ½π±
@Qutro, Thanks ! There are so many controversial studies and reports about the Far Red.
yes, no problem with the Red, but with far red it is another story. This is a wavelenght that we must use very carrefully.
and if we use the far red too early in flowering, it can affect the overall yields. That's why i plan to use the far red only at the late phase, when the buds are etablished, after the budding phase so.
Cannabis does not react like others crops. That said, i only experiment some aspects that i find interesting. Also, the far red at the end of the days after lights off could promote a better late phase.
I look for pigment, terpenes and overall quality, and... of course a good yield but it is not my goal to have more weight, just normal and i m fine.
I think PPFD, vapor pressure and optimized nutrients uptake by feeding with the lower EC are the keys.
Similar situatio to yours:
Due to a time crunch I have to start 3 plants for 2 weeks in a propagator tent while my current cycle finishes.
They will be hand watered in rockwool under an old 200w blurple light.
Then they will transfer to the bigger tent with drip hydroton for a few days of veg under 300w COB before flipping to 12/12.
I have to harvest at 9 weeks in order to dry and process before moving day...
Can you give me an indication of harvest weight per plant so I can plan accordingly?
@Lemonhazelover, Thanks guy :) i make this challenge to grow in a propagator tent.
I don't need more and it fix a lot of indoor issues. Only the stretch phase is critical but that's the rule π
@@FraFra__frankenstoner_Two_days_in_a_day, Hi ! because a plant need active leaf for photosynthesys even at very late stage.
There are enought PPFD here. Photosynthesis, and vapor pressure are the key. Defoliation come here to de-stock the nutrient a bit, during the ripping phase.
the photons conversion need power, and it comes from the leaf, not the fruit.
hi ! i never defoliate late in flowering. It breaks photosynthesis and force the plant to make new leaf.
I will just do a bottom defoliation the last week to help the ripping phase.