fans directly on plant vs fans facing away from plant

trivman10

trivman10

Member
Ok so my question here is , is it better to have your fan blowing directly on your plants or facing away sucking the air out , in my setup when i face my fan away from my plants right at the end of my hood the suction causes airflow and all the leaves flutter as if wind is blowing them and the effect is that i seem to be getting good airflow without putting much stress on the plants would it be better to just have the fan directly on them tho? I feel as if the fan pointed away is perfect as long as the leaves are moving showing airflow.
 
BeastGrow

BeastGrow

Well-Known Member
i put my fan on the wall above the plants.. the air hits the wall and then diverts downward and hits all the plants. the wall breaks up the air into more area and makes it slightly less intense.
 
S

sketchyas

Member
i think its pretty much common sense man, depends on the fan of course too. a little computer fan is fine blowing thru canopy for instance, but u wouldn't want the dam thing shaking violently back n forth by some hugefan ..it depends..do what u think is best...that simple.. (unless u cant judge too much wind, but I mean ull kno if u have some sense) your right a big fan pointing away in smaller space would be perfect too.. don't worry so much
 
SupraSPL

SupraSPL

Well-Known Member
I use a ceiling fan with upward draft. Very quiet and causes just slight movement in the canopy.
 
spitsbuds

spitsbuds

Well-Known Member
agree with above, but can depend on age of the plant, once the plant as rooted proply and had a fully formed root mass/ball you're ok to let a slight amount of air flow cause the plant to move a little and increase is slightly with the plants age if u want, if you doe this say straight after a transplant with a young seedling, the direct wind/air flow will the stress the plant and add another foctor of stress to a already stressful time, by causing it ti release moisture to compensate, so say if the wind is directly and consistent, the plant will be constantly having to compensate and go into over over over time root production to handle this
 
simisimis

simisimis

Well-Known Member
PositiveGreen said:
I agree with this sound reasoning.
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that is some hype parroting...

wind does not strenghten the stem, wind causes air exchange which is so good for the plant. cause the plant gets more co2, it does great job preventing from mold and insects in more humid environment and it decreases heat. what you want to achieve is a good air movent without disturbing the plant. leave wiggle is ok, so do some indirect blowing and you will have your happy plant ;)
 
nameno

nameno

Well-Known Member
Wind makes the stem thicken up,like it thinks a storm is coming so it strengthens up.

Wind to strong will cause wind burn.
 
brotherjericho

brotherjericho

Well-Known Member
simisimis said:
that is some hype parroting...

wind does not strenghten the stem, wind causes air exchange which is so good for the plant. cause the plant gets more co2, it does great job preventing from mold and insects in more humid environment and it decreases heat. what you want to achieve is a good air movent without disturbing the plant. leave wiggle is ok, so do some indirect blowing and you will have your happy plant ;)
Click to expand...
http://en.wikipedia.org/wiki/Thigmomorphogenesis
 
doniboy

doniboy

Well-Known Member
simisimis said:
that is some hype parroting...

wind does not strenghten the stem, wind causes air exchange which is so good for the plant. cause the plant gets more co2, it does great job preventing from mold and insects in more humid environment and it decreases heat. what you want to achieve is a good air movent without disturbing the plant. leave wiggle is ok, so do some indirect blowing and you will have your happy plant ;)
Click to expand...

Trust me man. I had one plant that was towards the back of my room that wasn't getting hit by any air from my fan and the stem was extremely thin, fragile, and would fall over. When I moved to a spot where it would be hit with the wind current, it was nice and thick within a weeks time.

I experienced this first hand, and it's also mentioned in a few MJ books.
 
P

PositiveGreen

Member
simisimis said:
that is some hype parroting...

wind does not strenghten the stem, wind causes air exchange which is so good for the plant. cause the plant gets more co2, it does great job preventing from mold and insects in more humid environment and it decreases heat. what you want to achieve is a good air movent without disturbing the plant. leave wiggle is ok, so do some indirect blowing and you will have your happy plant ;)
Click to expand...
Hype? Not everythng is "only" one way. I prefer to keep an open mind and "DO" what works for me!
 
redzi

redzi

Well-Known Member
For a clone plant do not use direct air...you want the stems to be soft. For some indicas no fan is needed to thicken the stems but you still need air exchange so a small oscilating fan will do.
 
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