Ultraviolet commentedweek 135d ago
Don't water before lights off if you can help it; you want to water in the mornings. Transpiration is a daytime process; unless you incorporate evaporation into your tent by lowering RH% just below 50% at night, the water cannot transpire at night there is no heat/light, all the water the plant spits out at night comes from the air not the pot.
Oxygen moves 10,000x slower in soil than air
Oxygen moves 320,000 times slower in saturated soil above a point.
The main function of a cannabis plant at night is to perform oxidative phosphorylation. "Ox"idative phosphorylation is the final, most efficient stage of cellular respiration (90%) ATP Compared to 10% of photosynthesis. The amount of oxygen in the soil significantly affects the efficiency of oxidative phosphorylation.
Create a cycle that waters every morning, run slightly warmer than you normally would, and keep the water flowing, come nighttime the soil is a perfect mix of moisture and oxygen, not too dry, not too wet, that is a big of part of why you're plants are small, ATP is the daddy, daytime is allllll about photosynthesis, that's the carbon capture, nighttime is the processing of that carbon, that requires oxygen, if it runs short for any amount of time, most people run high VPD for daytime which normally incurs high RH%, if you don't bring that down at night it cripples the plant to 10% of its energetic potential in worst cases skew ph from all the acids being released due to anerobic breakdown occurring instead of aerobic. I think of it like locking out oxygen; it moves so slowly. A lot worse if you're doing organics too, because microorganisms scavenge oxygen themselves in competition with plants.
Toke on! All the best on your journey of growth. *puff puff pass*
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