Dropping the humidity level to encourage water uptake from soil

FruitSpirit

Active Member
Evening ladies and gents,

I have watered my plants last week and they are almost gone 7 days without needing rewatered, the pots are almost light so i will be watering tomorrow with a nice solution of grow in there. The question i have is that if i drop the humidity in the tent from 80% to round about 40% will the plant then use up more water from the soil instead of getting moisture from the humidity being up at 80% through its leaves?
 

mauricem00

Well-Known Member
short answer is yes. dropping the humidity will cause the plant to use more water.80% seems a little high and may prevent the plant from "breathing" properly.water must evaporate from the leaves to draw water and nutrients into the plant. high humidity causes poor circulation.
 

FruitSpirit

Active Member
Thanks Maurice i will drop the humidity down for a few days and will see what happens, which humidity % do you recommend in veg?
 

mauricem00

Well-Known Member
unfortunately I live in the high desert where humidity usually does not get over 10%. I spray my plant with water from a spray bottle 2 or 3 times a day but can't tell you the average humidity. i'm sure this is not optimal but i'm a low budget PU MMJ grower. my plants yield about 0.7 gpw of "one hit bud" the cancer patients I share it with claim its much stronger and taste better that anything they get from the dispensary so there are many factors that control yield and quality. and each strain is different. you just need to keep trying different thing still you find what works best for you.
 

FruitSpirit

Active Member
I have an exhaust fan but not an air intake. The top of the tent stays open like a flap as i cannot keep the temps below 29degrees with the tent fully closed. The air in the room is 20degrees so it evems itself out. I have grown a few before and i dont see much disadvantage with not using an air inlet. I have mesh flaps on the side of my tent so i position my fans i front of them so thw fan sucks the air in from outside and that is my fresh supply. I have started to lollipop the lower third of vegetation as well which i find works great with this skunk strain, the colas explode mid flower.

After i cut the lower main fan leaves off i use clothes pegs to put over the open branch going into the main stem, this squashes the ends together and it seems to heal alot quicker. Does anyone else "plug" their open branch ends after cutting fan leaves?
 

HydoDan

Well-Known Member
I don't use scissors or trimmers on the leaves... I use my fingers to smash the stem. Then remove the leaf..
No problems!!
 

Lordhooha

Well-Known Member
I have an exhaust fan but not an air intake. The top of the tent stays open like a flap as i cannot keep the temps below 29degrees with the tent fully closed. The air in the room is 20degrees so it evems itself out. I have grown a few before and i dont see much disadvantage with not using an air inlet. I have mesh flaps on the side of my tent so i position my fans i front of them so thw fan sucks the air in from outside and that is my fresh supply. I have started to lollipop the lower third of vegetation as well which i find works great with this skunk strain, the colas explode mid flower.

After i cut the lower main fan leaves off i use clothes pegs to put over the open branch going into the main stem, this squashes the ends together and it seems to heal alot quicker. Does anyone else "plug" their open branch ends after cutting fan leaves?
Yah my fresh air comes from my room having such a negative pressure it pulls air from the house in to the room via the door. I have no need for a intake fan.
 
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