Jan 24, 2025 · Think of plants grown outdoors, the VPD changes drastically on a daily and sometimes hourly basis. Landrace cold climate strains and warm climate strains have different …

Sep 18, 2019 · As the title says, how close is this chart? And is this what we should all be aiming for. For a perfect environment? Anyone here specialised on this subject that could give me …

Dec 28, 2016 · i should mention that that chart probably isnt specifically for cannabis but it might apply to most or all plants. also, VPD calculations should remain the same regardless of day …

Jan 8, 2022 · Everyone seems to talking about VPD so I have a question. I am a old school grower and have always been taught your going to get you best Veg growth around 80 deg F. …

Sep 18, 2019 · I used to run co2 and aim for the vpd values and I struggled terribly for a couple years. Then my brother bought a tent and grew better weed than me with nothing but an …

Dec 4, 2022 · I go by that VFD chart and try to stay between 1.10 and 1.00 with the AC Infinity 67 controller. The problem I have is lights out and then it will go high, I limit to 75% before the fan …

Mar 18, 2024 · - Environment: Optimised in terms of VPD. No CO2 supplementation. - Nutes: Floranova bloom nutrients @ 1.5 ml per liter, which gives an EC of only 1.2. To note, this …

Jan 6, 2025 · No exhaust running 30% fec4800 4x4 tent Rh 62 77f. Temp was 60. 12/12 3days Jacks 321full strength 2.4ec 5.8ph ...

Jan 12, 2017 · Could someone with knowledge in this area chime and let me know if its okay to grow via VPD chart in a perpetual flower room. My room is setup so I can keep whatever …

Sep 2, 2024 · leds like it in the 80's since they don't get as much heat from the light. and if you want them to grow quicker you can try to look up VPD charts. so more heat with higher …